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You can browse our registered titles, and all published protocols, reviews and updates using the links to the Cochrane Library evidence below.
( Tip: select Full list > view stage: all to see the most comprehensive titles list)

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You can browse our registered titles, and all published protocols, reviews and updates using the links to the Cochrane Library evidence below.( Tip: select Full list > view stage: all to see the most comprehensive titles list)

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Dental Care Information for Professionals | Dentalcare.com

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Dentalcare.com provides free continuing education, patient education and practice management resources to help dental professionals succeed with their patients.

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CE Zoom stores an exportable list of courses, objectives, rosters, CE hours offered, sponsors, presenters, and survey results.Documentation is important. Paper files stored in a folder somewhere deep in a filing cabinet are a thing of the past. If you are a certified approved provider offering CE, this information is required and mandatory to submit to whomever you are approved through.

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CE Zoom | Organize and Track your Continuing Education

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for patients

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The practice of risk assessment provides you with the opportunity to improve clinical outcomes with the identification of disease indicators, risk factors and protective factors that affect the development or progression of oral diseases. This tool is designed to assist you with the first initial assessment of a patient. Depending on the risk level assigned to them at this time, re-evaluation may be necessary at a future appointment.

Enter information below.

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Philips and Williams Helde Marketing Communnications

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Philips CARE - Customized Assessment and Risk Evaluator for Dental Caries, Periodontal Disease and Oral Pathology

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The practice of risk assessment provides you with the opportunity to improve clinical outcomes with the identification of disease indicators, risk factors and protective factors that affect the development or progression of oral diseases. This tool is designed to assist you with the first initial assessment of a patient.

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Study in group or quiet spaces. Open more than 100 hours each week during the semester. Access online and physical journal articles, books, movies, and more. Use technology, printers, and scanners. Get personalized research help in-person, online, via phone.

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ADA Research link

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Innovative research for clinical decision making, critical policy information and oral health care performance measures.

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APA citation

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Overview of this guide:

This page provides you with an overview of APA format, 7th edition. Included is information about referencing, various citation formats with examples for each source type, and other helpful information.

If you're looking for MLA format, check out the Citation Machine MLA Guide. Also, visit the Citation Machine homepage to use the APA formatter, which is an APA citation generator, and to see more styles.

Being responsible while researching

When you're writing a research paper or creating a research project, you will probably use another individual's work to help develop your own assignment. A good researcher or scholar uses another individual's work in a responsible way. This involves indicating that the work of other individuals is included in your project (i.e., citing), which is one way to prevent plagiarism.

Plagiarism? What is it?

The word plagiarism is derived from the Latin word, plagiare, which means "to kidnap." The term has evolved over the years to now mean the act of taking another individual's work and using it as your own, without acknowledging the original author (American Psychological Association, 2020 p. 21). Plagiarism can be illegal and there can be serious ramifications for plagiarizing someone else's work. Thankfully, plagiarism can be prevented. One way it can be prevented is by including citations and references in your research project. Want to make them quickly and easily? Try the Citation Machine citation generator, which is found on our homepage.

All about citations & references

Citations and references should be included anytime you use another individual's work in your own assignment. When including a quote, paraphrased information, images, or any other piece of information from another's work, you need to show where you found it by including a citation and a reference. This guide explains how to make them.

APA style citations are added in the body of a research paper or project and references are added to the last page.

Citations, which are called in-text citations, are included when you're adding information from another individual's work into your own project. When you add text word-for-word from another source into your project, or take information from another source and place it in your own words and writing style (known as paraphrasing), you create an in-text citation. These citations are short in length and are placed in the main part of your project, directly after the borrowed information.

References are found at the end of your research project, usually on the last page. Included on this reference list page is the full information for any in-text citations found in the body of the project. These references are listed in alphabetical order by the author's last name.

An APA in-text citation includes only three items: the last name(s) of the author(s), the year the source was published, and sometimes the page or location of the information. References include more information such as the name of the author(s), the year the source was published, the full title of the source, and the URL or page range.

Here is the text description of the in-text citation examples.

Here is the text description of the reference examples.

Why is it important to include citations & references

Including APA citations and references in your research projects is a very important component of the research process. When you include citations, you're being a responsible researcher. You're showing readers that you were able to find valuable, high-quality information from other sources, place them into your project where appropriate, all while acknowledging the original authors and their work.

Common ways students and scholars accidentally plagiarize

Believe it or not, there are instances when you could attempt to include in-text and full references in the appropriate places, but still accidentally plagiarize. Here are some common mistakes to be aware of:

Mistake #1 - Misquoting sources: If you plan to use a direct quote, make sure you copy it exactly as is. Sure, you can use part of the full quote or sentence, but if you decide to put quotation marks around any words, those words should match exactly what was found in the original source. Here's a line from The Little Prince, by Antoine de Saint-Exupéry:

"Grown-ups never understand anything by themselves, and it is tiresome for children to be always and forever explaining things to them."

Here's an acceptable option:

"Grown-ups never understand anything by themselves," stated de Saint-Exupéry (1943, p. 3).

Here's a misquote:

"Grown-ups barely ever understand anything by themselves," stated de Saint-Exupéry (1943, p. 3).

Notice the slight change in the words. The incorrect phrasing is an instance of accidental plagiarism.

Mistake #2 - Problems with paraphrasing: When we paraphrase, we restate information using our own words and writing style. It's not acceptable to substitute words from the original source with synonyms.

Let's use the same sentence from The Little Prince.

A correct paraphrase could be:

de Saint-Exupéry (1943) shares various ways adults frustrate children. One of the biggest being that kids have to explain everything. It's too bad adults are unable to comprehend anything on their own (p. 3).

An incorrect paraphrase would be:

de Saint-Exupéry (1943) shares that adults never understand anything by themselves, and it is exhausting for kids to be always and forever clarifying things to them (p.3).

Notice how close the incorrect paraphrase is from the original. This is an instance of accidental plagiarism.

Make sure you quote and paraphrase properly in order to prevent accidental plagiarism.

If you're having a difficult time paraphrasing properly, it is acceptable to paraphrase part of the text AND use a direct quote. Here's an example:

de Saint-Exupery (1943) shares various ways adults frustrate children. One of the biggest being that kids have to explain everything, and "it is tiresome for children to be always and forever explaining things to them" (p. 3).

Information About APA

Who created it?

The American Psychological Association is an organization created for individuals in the psychology field. With close to 121,000 members, they provide educational opportunities, funding, guidance, and research information for everything psychology-related. They also have numerous high-quality databases, peer-reviewed journals, and books that revolve around mental health.

The American Psychological Association is also credited with creating their own specific citation and reference style. Today, this format is used by individuals not only in the psychology field, but many other subject areas as well. Education, economics, business, and social sciences also use APA style quite frequently. Click here for more information. This guide covers general information about the style, but is not affiliated with the American Psychological Association.

Why was this style created?

This format was first developed in 1929 to form a standardized way for researchers in science fields to document their sources. Prior to the inception of these standards and guidelines, individuals were recognizing the work of other authors by including bits and pieces of information in random order. There wasn't a set way to format citations and references. You can probably imagine how difficult it was to understand the sources that were used for research projects!

Having a standard format for citing sources allows readers to glance at a citation or APA reference and easily locate the title, author, year published, and other critical pieces of information needed to understand a source.

The evolution of this style

The guide below is based on APA style 7th edition, which was released in 2020. In previous versions of APA format, researchers and scholars were required to include the publisher location for books and the date that an electronic resource was accessed. Both are no longer required to be included.

Details on the differences between the 6th and 7th editions is addressed later in this guide.

Citations & References

The appearance of citations & references

The format for references varies, but most use this general format:

%%Author's Last name, First initial. (Date published). Title. URL

Researchers and scholars must look up the proper format for the source that they're attempting to cite. Books have a certain format, websites have a different format, periodicals have a different format, and so on. Scroll down to find the proper format for the source you're citing or referencing.

If you would like help citing your sources, CitationMachine.com has a citation generator that will help make the APA citation process much easier for you. To start, simply click on the source type you're citing:

In-text citations

An APA in-text citation is included in research projects in three instances: When using a direct quote, paraphrasing information, or simply referring to a piece of information from another source.

Quite often, researchers and scholars use a small amount of text, word for word, from another source and include it in their own research projects. This is done for many reasons. Sometimes, another author's words are so eloquently written that there isn't a better way to rephrase it yourself. Other times, the author's words can help prove a point or establish an understanding for something in your research project. When using another author's exact words in your research project, include an APA in-text citation directly following it.

In addition to using the exact words from another source and placing them into your project, these citations are also added anytime you paraphrase information. Paraphrasing is when you take information from another source and rephrase it, in your own words.

When simply referring to another piece of information from another source, also include a citation directly following it.

Citations in the text are found near a direct quote, paraphrased information, or next to a mention of another source. To see examples of some narrative/ parenthetical citations in action, look at the image above, under "All About Citations & References."
Note: *Only include the page or paragraph number when using a direct quote or paraphrase. Page numbers have a p. before the number, pp. before the page range, and para. before the paragraph number. This information is included to help the reader locate the exact portion of text themselves. It is unnecessary to include this information when you're simply referring to another source. Examples of APA in-text citations:

"Well, you're about to enter the land of the free and the brave. And I don't know how you got that stamp on your passport. The priest must know someone" (Tóibín, 2009, p. 52).

and

Student teachers who use technology in their lessons tend to continue using technology tools throughout their teaching careers (Kent & Giles, 2017, p. 12).

If including the author's name in the sentence, place the year in the parentheses directly next to his or her name. Add the page number at the end, unless it's a source without any pages or paragraph numbers (See Section 8.10 of the Publication manual for more details).
In-text citation APA example:

According to a study done by Kent and Giles (2017), student teachers who use technology in their lessons tend to continue using technology tools throughout their teaching careers.

The full references, or citations, for these sources can be found on the last part of a research project, titled the "References."

Here's how to create in-text citations for specific amounts of authors:

APA citation with no author

When the source lacks an author's name, place the title, year, and page number (if available) in the text. The title should be in italics if it sits alone (such as a movie, brochure, or report). If the source is part of a whole (as many web pages and articles are), place the title in quotation marks without italics (See Section 8.14 of the Publication manual).
Structure of an APA format citation in the text narratively, with the author's name missing:
Title of Source (Year) or "Title of Source" (Year)

OR

Structure of an APA style format citation, in parentheses at the end of the sentence, with the author's name missing: (Title of Source, Year) or ("Title of Source," Year)

Structure for one author

In the text, narratively: Last name of Author (Year)...(page number).

OR

In parentheses, at the end of the sentence: (Last name of Author, Year, page number).

Structure for two authors

Place the authors in the order they appear on the source. Only use the ampersand in the parenthetical citations (see Section 8.17 of the Publication manual). Use 'and' to separate the author names if they're in the text of the sentence.

In the text, narratively: Last name of Author 1 and Last name of Author 2 (Year)....(page number).

OR

In parentheses, at the end of the sentence: (Last name of Author 1 & Last name of Author 2, Year, page number).

Structure for three or more authors

Only include the first listed author's name in the first and any subsequent citations. Follow it with et al.

(Last name Author 1 et al., Year, page number)

(Agbayani et al., 2020, p. 99)

OR

Last name of Author 1 et al. (Year)...(page).

Agbayani et al. (2020)...(p. 99)

One author, multiple works, same year

What do you do when you want to cite multiple works by an author, and the sources all written in the same year?

Include the letters 'a' 'b' 'c' and so on after the year in the citation.

(Jackson, 2013a)

OR

Jackson (2013a)

Writers can even lump dates together.

Example: Jackson often studied mammals while in Africa (2013a, 2013b).

On the APA reference page, include the same letters in the full references.

Groups and organizations

Write out the full name of the group or organization in the first citation and place the abbreviation next to it in brackets. If the group or organization is cited again, only include the abbreviation. If it doesn't have an abbreviation associated with it, write out the entire organization's name each and every time (see Section 8.21 of the Publication manual).
Example:
First APA citation for an organization with an abbreviation: (World Health Organization [WHO], Year)

OR

World Health Organization (WHO, Year)

Notice in the example directly above, the name of the organization is written out in full in the text of the sentence, and the abbreviation is placed in parentheses next to it.

Subsequent APA citations in the text for an organization with an abbreviation: (WHO, Year) OR WHO (Year)
Example:
All citations in the text for an organization without an abbreviation: (Citation Machine, Year) or Citation Machine (Year)

One in-text citation, multiple works

Sometimes you'll need to cite more than one work within an in-text citation. Follow the same format (author, year) format but place semicolons between works (p. 263).
Example:
(Obama, 2016; Monroe et al., 1820; Hoover & Coolidge, 1928)

Reminder: There are many citation tools available on CitationMachine.com. Head to our homepage to learn more, check out our APA citation website, and cite your sources easily! The most useful resource on our website? Our APA citation generator, which doesn't just create full references, it's also an APA in-text citation website! It'll do both for you!

Click here to learn more about crediting work.

Reference list citation components

References display the full information for all the citations found in the body of a research project.

Some things to keep in mind when it comes to the references:

All references sit together on their own page, which is usually the last page(s) of a paper.

Title the page 'References'

Place 'References' in the center of the page and bold it. Keep the title in the same font and size as the references. Do not italicize, underline, place the title in quotation marks, or increase the font size.

The entire page is double spaced.

All references are listed in alphabetical order by the first word in the reference, which is usually the author's last name. If the source lacks an author, alphabetize the source by the title (ignore A, An, or The)

All references have a hanging indent, meaning that the second line of text is indented in half an inch. See examples throughout this guide.

Remember, each and every citation in the text of the paper MUST have a full reference displayed in the reference list. The citations in the text provide the reader with a quick glimpse about the sources used, but the references in the reference list provide the reader with all the information needed to seek out the source themselves.

Learn more about each component of the reference citation and how to format it in the sections that follow. See an APA sample paper reference list at the end of this entire section.

Author's names

The names of authors are written in reverse order. Include the initials for the first and middle names. End this information with a period (see Section 9.8 of the Publication manual).

Format: Last name, F. M.
Example:
Two or more authors

When two or more authors work together on a source, write them in the order in which they appear on the source. You can name up to 20 authors in the reference. For sources with 2 to 20 authors, place an ampersand (&) before the final author. Use this format:

Last name, F. M., & Last name, F. M.

OR

Last name, F. M., Last name, F. M., Last name, F. M., Last name, F. M., & Last name, F. M.

Kent, A. G., Giles, R. M., Thorpe, A., Lukes, R., Bever, D. J., & He, Y.

If there are 21 or more authors listed on a source, only include the first 19 authors, add three ellipses, and then add the last author's name.

Roberts, A., Johnson, M. C., Klein, J., Cheng, E. V., Sherman, A., Levin, K. K. , ...Lopez, G. S.

If you plan on using a free APA citation tool, like the one at CitationMachine.com, the names of the authors will format properly for you.

###No authors

If the source lacks an author, place the title in the first position in the reference (Section 9.12 of the Publication manual). When the source's title begins with a number (Such as 101 Dalmatians), place the reference alphabetically as if the number was spelled out. 101 Dalmatians would be placed in the spot where 'One hundred' would go, but keep the numbers in their place.

Additionally, if the title begins with the words 'A', 'An,' or 'The,' ignore these words and place the title alphabetically according to the next word.

See the "Titles" section below for more information on formatting the title of sources.

###Corporate/Organization authors

On an APA reference page, corporate authors are always written out in full. In the text of your paper, you may have some abbreviations (such as UN for United Nations), but in the full references, always include the full names of the corporation or organization (following Section 9.11 of the official Publication manual).
Example:
%%United Nations. (2019). Libya: $202 million needed to bring life-saving aid to half a million people hit by humanitarian crisis. https://news.un.org/en/story/2019/02/1031981

Publication date & retrieval date

Directly after the author's name is the date the source was published. Include the full date for newspapers and magazine articles, and only the year for journals and all other sources. If no date is found on the source, include the initials, n.d. for "no date."
Newspaper:
%% Narducci, M. (2017, May 19). City renames part of 11th Street Ed Snider Way to honor Flyers founder. The Philadelphia Inquirer. http://www.philly.com/

If using our APA Citation Machine, our citation generator will add the correct format for you automatically.

Giving a retrieval date is not needed unless the online content is likely to be frequently updated and changed (e.g., encyclopedia article, dictionary entry, Twitter profile, etc.).

%%Citation Machine [@CiteMachine]. (n.d.). Tweets [Twitter profile]. Twitter. Retrieved October 10, 2019, from https://twitter.com/CiteMachine

Titles

When writing out titles for books, articles, chapters, or other non-periodical sources, only capitalize the first word of the title and the first word of the subtitle. Names of people, places, organizations, and other proper nouns also have the first letter capitalized. For books and reports, italicize the title in the APA citation.
Examples: Strange case of Dr. Jekyll and Mr. Hyde. Roots: The saga of an American family.
For articles and chapters in APA referencing, do not italicize the title.
Examples:
Wake up the nation: Public libraries, policy making, and political discourse.

For newspapers, magazines, journals, newsletters, and other periodicals, capitalize the first letter in each word and italicize the title.
Example: The Seattle Times.
A common question is whether to underline your title or place it in italics or quotation marks in the reference list. Here's a good general rule: When a source sits alone and is not part of a larger whole, place the title in italics. If the source does not sit alone and is part of a larger whole, do not place it in italics.

Books, movies, journals, and television shows are placed in italics since they stand alone. Songs on an album, episodes of television shows, chapters in books, and articles in journals are not placed in italics since they are smaller pieces of larger wholes.

The Citation Machine citation generator will format the title in your citations automatically.

Additional information about the title

If you feel it would be helpful to include additional information about the source type, include a descriptive noun or two in brackets immediately following the title. Capitalize the first letter.
Example:
%%Kennedy, K., & Molen, G. R. (Producers), & Spielberg, S. (Director). (1993). Jurassic Park [Film]. USA: Universal.

Besides [Film], other common notations include:

[Audio podcast]

[Brochure]

[Letter to the editor]

[Television series episode]

[Tweet]

[Facebook page]

[Blog post]

[Lecture notes]

[PowerPoint presentation]

[Video file]

If you are using Citation Machine citing tools, additional information about the title is automatically added for you.

Publisher information

For books and reports, include the publisher name but not the location (see Section 9.29 of the Publication manual). Older editions of the style required the city, state and/or country, but this hasn't been the case since the 7th edition was released.

It is not necessary to include the entire name of the publisher. It is acceptable to use a brief, intelligible form. However, if Books or Press are part of the publisher's names, keep these words in the reference. Other common terms, such as Inc., Co., Publishers, and others can be omitted.

For newspapers, journals, magazines, and other periodicals, include the volume and issue number after the title. The volume number is listed first, by itself, in italics. The issue number is in parentheses immediately after it, not italicized. There is no space after the closing parenthesis and before the volume number.
Example:
%%Giannoukos, G., Besas, G., Hictour, V., & Georgas, T. (2016). A study on the role of computers in adult education. Educational Research and Reviews, 11(9), 907-923. https://doi.org/10.5897/ERR2016.2688

After including the publisher information, end this section with a period.
Examples:
Pearson.

Perseus Books.

Electronic source information:

For online sources, the URL or DOI (Direct Object Identifier) are included at the end of an APA citation.

DOI numbers are often created by publishers for journal articles and other periodical sources. They were created in response to the problem of broken or outdated links and URLs. When a journal article is assigned a DOI number, it is static and will never change. Because of its permanent characteristic, DOIs are the preferred type of electronic information to include in APA citations. When a DOI number is not available, include the source's URL (see Section 9.34 in the Publication manual).
For DOIs, include the number in this format: http://doi.org/xxxx For URLs, type them in this format:
http:// or https://

Other information about electronic sources:

If the URL is longer than a line, break it up before a punctuation mark.

Do not place a period at the end of the citation/URL.

It is unnecessary to include retrieval dates, unless the source changes often over time (like in a Wikipedia article).

It is not necessary to include the names of databases

If using the Citation Machine APA citation website autocite features, the online publication information will be automatically replaced by the DOI. The Citation Machine APA template will properly cite your online sources for you.

Sample - Student Paper Reference Page APA:

Make sure you run your completed paper through the Citation Machine Plus smart proofreader, which scans for grammar, spelling, and plagiarism. Whether it's an adjective, verb, or pronoun out-of-place, our technology helps edits your paper for you!

Annotated bibliographies:

An APA annotated bibliography is a full bibliography that includes a small note for each reference citation. Each note should be short (1-2 paragraphs) and contain a summary or your evaluation about each source. When creating your citations on CitationMachine.net, there is a field at the bottom of each form to add your own annotations.

Follow the publication manual guidelines on paper format and writing style. Let your instructor guide other details about your annotations. Still confused? Read our guide on annotated bibliographies.

These types of projects look different depending on the style you're using. Use the link at the top of the page to access resources related to the Modern Language Association's style. Here's information related to Chicago citation style.

Page formatting

Need help with the design and formatting of your paper? Look no further! This section provides the ins and outs of properly displaying the information in your APA essay.

Font = Here are the recommended fonts and sizes (from Section 2.19 of the Publication manual):

Times New Roman, 12-point size.

Calibri, Arial, or Georgia, 11-point size

Lucida, Sans Unicode, or Computer Modern, 10-point size

Indents = Every paragraph should start with an indent.

Margins = 1 inch around the entire document

Spacing = Double space everything!

Arrange your pages in this order:

Page 1 - APA Title Page (see below for information on the title page)

Page 2 - Abstract (If your professor requests one)

Page 3 - First page of text

References begin on their own page. Include the list of references on the page after the text.

Tables and figures

Keep in mind that the order above is the recommendation for papers being submitted for peer review. If you're writing an APA style paper for a class, your professor may be more lenient about the requirements. Also, if you're submitting your paper for a specific journal, check the requirements on the journal's website. Each journal has different rules and procedures.

Just a little nudge to remind you about the Citation Machine Plus smart proofreader. Whether it's a conjunction or interjection out of place, a misspelled word, or an out of place citation, we'll offer suggestions for improvement! Don't forget to check out our APA citation maker while you're at it!

Running heads

In older editions of APA, running heads were required for all papers. Since the 7th edition, that's changed.

Student paper: No running head

Professional paper: Include a running head

The running head displays the title of the paper and the page number on all pages of the paper. This header is found on every page of a professional paper (not a student paper), even on the title page (sometimes called an APA cover page) and reference list (taken from Section 2.8 of the Publication manual).

It's displayed all in capital letters at the top of the page. Across from the running head, along the right margin, is the page number.

Use the header feature in your word processor. Both Google Docs and Word have these features available.

Use one for the recommended fonts mentioned under "Page formatting."

Title pages

A title page, sometimes called an APA cover page, graces the cover of an essay or paper. An APA title page should follow rules from Section 2.3 of the official Publication manual and include:

1. Page number, which is page 1

2. Title of your project

Use title case and bold font

The title should be under 12 words in length

The title should be a direct explanation of the focus of the paper. Do not include any unnecessary descriptors such as "An Analysis of..." or "A Study of..."

3. Names of the authors
Exclude any labels such as Mr., Ms., Dr, PhD...

4. Name of the school or institution

5. Course number and/or class name

6. Name of your instructor, including their preferred honorifics (e.g., PhD, Dr., etc.)

7. Paper's due date

8. If this is a professional paper, also include a running head. If this is a student paper, do not include one.

Follow the directions for the running head and page number in the section above. Below the running head, a few lines beneath, and centered in the middle of the page, should be the title. The next line below is the author's name(s), followed by the name of the school or institution, the class or course name, your instructor's name, and the paper's due date.

All components on this page should be written in the same font and size as the rest of your paper. Double space the title, names, name of school or institution, and all other information on the page (except for the running head and page number).
Example - Student Title Page APA: Example - Professional Title Page APA:
If you're submitting your paper to a journal for publication, check the journal's website for exact requirements. Each journal is different and some may request a different type of APA format cover page.

Looking to create an APA format title page? Head to CitationMachine.com's homepage and choose "Title Page" at the top of the screen.

Abstracts

An abstract briefly but thoroughly summarizes dissertation contents. It's found in the beginning of a professional paper, right after the title page. Abstracts are meant to help readers determine whether to continue reading the entire document. With that in mind, try to craft the lead sentence to entice the reader to continue reading.

Here are a few tips:

Be factual and keep your opinions out. An abstract should accurately reflect the paper or dissertation and should not involve information or commentary not in the thesis.

Communicate your main thesis. What was the examined problem or hypothesis? A reader should know this from reading your abstract.

Keep it brief. Stick to the main points and don't add unnecessary words or facts. It should not exceed 250 words.

Consider your paper's purpose. It's important to cater your abstract to your paper type and think about what information the target audience for that paper type would want. For example, an empirical article may mention methodology or participant description. A quantitative or qualitative meta-analysis would mention the different variables considered and how information was synthesized.

Use verbs over noun equivalents, and active voice. Example: "There was research into..." becomes "We researched..."

Formatting guidelines:

The abstract goes after the title page.

It should have the same font (size and type) as the rest of the paper.

It should stick to one page.

Double-space all page text.

Center and bold the word "Abstract" at the top of the paper.

Don't indent the first line of the abstract body. The body should also be in plain text.

For the keywords, place it on the line after the abstract and indent the first line (but not subsequent lines). The word "Keywords:" is capitalized, italicized, and followed by a colon. The actual keywords are sentence case and in plan font.

List each keyword one after the other, and separate them by a comma.

After the last keyword, no ending punctuation is needed.

Example abstract:

Tables & Figures

If your paper includes a lot of numerical information or data, you may want to consider placing it into a table or a figure, rather than typing it all out. A visual figure or simple, organized table filled with numerical data is often easier for readers to digest and comprehend than tons of paragraphs filled with numbers. Chapter 7 of the Publication manual outlines formatting for tables and figures. Let's cover the basics below.

If you'd like to include a table or figure in your paper, here are a few key pieces of information to keep in mind:

Either place all tables and figures:

1. At the end of the paper after the APA reference page

2. In the text after it is first mentioned

The table first mentioned in the text should be titled 'Table 1.' The next table mentioned in the text is 'Table 2,' and so on. For figures, it would be 'Figure 1,' 'Figure 2,' and so forth.

Even though every table and figure is numbered, also create a title for each that describes the information it contains. Capitalize all important words in the title.

For tables, do not use any vertical lines, only use horizontal to break up information and headings.

Single spacing is acceptable to use in tables and figures. If you prefer double spacing your information, that is okay too.

Do not include extra information or "fluff." Keep it simple!

Do not include the same exact information in the paper. Only include the complete information in one area-the table or the text.

All tables and figures must be referenced in the text. It is unacceptable to throw a table or figure into the back of the paper without first providing a brief summary or explanation of its relevance.

Example:

Here is the text description of the APA table example.

Publication Manual 6th Edition vs 7th Edition

The 6th edition of the Publication Manual of the American Psychological Association was released in 2009. The current 7th edition came out in the fall of 2019 and was designed to be more student focused, provide more guidance on accessibility, and address changes that have developed over the last 10 years.

Below, we've listed what we feel are the most relevant changes related to APA format.

Journals and DOIs

DOI stands for "digital object identifier." Many journal articles use and have a unique DOI that should be included in a full citation.

When including a DOI in a citation, format it as a URL. Do not label it "DOI." Articles without DOIs from databases are treated as print works. For example:
6th edition:
%%Gänsicke, B. T., Schreiber, M. R., Toloza, O., Fusillo, N. P. G., Koester, D., & Manser, C. J. (2019). Accretion of a giant planet onto a white dwarf star. Nature, 576(7785), 61-64. doi: 10.1038/s41586-019-1789-8
7th edition:
%%Gänsicke, B. T., Schreiber, M. R., Toloza, O., Fusillo, N. P. G., Koester, D., & Manser, C. J. (2019). Accretion of a giant planet onto a white dwarf star. Nature, 576(7785), 61-64. https://doi.org/10.1038/s41586-019-1789-8

Citing Books

There are few new guidelines when you are citing a book. First, the publisher location no longer needs to be indicated.
6th edition:
%%Zack, P. O. (2001). The shoals of time. Bloomington, IN: First Books Library.
7th edition:
%%Zack, P. O. (2001). The shoals of time. First Books Library.

Second, the format of an ebook (e.g., Kindle, etc.) no longer needs to be indicated.
6th edition:
%%Niven, J. (2012). Ada Blackjack: A true story of survival in the Arctic [Kindle].
7th edition:
%%Niven, J. (2012). Ada Blackjack: A true story of survival in the Arctic.

Lastly, books from research databases without DOIs are treated the same as print works.

URLs

When using a URL in a citation, you no longer need to include the term "Retrieved from" before URLs (except with retrieval dates). The font should be blue and underlined, or black and not underlined.
6th Edition:
%%Flood, A. (2019, December 6). Britain has closed almost 800 libraries since 2010, figures show. The Guardian. Retrieved from https://www.theguardian.com/books/2019/dec/06/britain-has-closed-almost-800-libraries-since-2010-figures-show
7th Edition:
%%Flood, A. (2019, December 6). Britain has closed almost 800 libraries since 2010, figures show. The Guardian. https://www.theguardian.com/books/2019/dec/06/britain-has-closed-almost-800-libraries-since-2010-figures-show

Authors

Within a full APA citation, you may spell out up to 20 author names. For two to 20 authors, include an ampersand (&) before the name of the last author. For sources with 21 or more authors, structure it as follows:

Structure: First 19 authors' names, . . . Last author's name.

7th edition example: Washington, G., Adams, J., Jefferson, T., Madison, J., Monroe, J., Adams, J. Q., Jackson, A., Van Buren, M., Harrison, W. H., Tyler, J., Polk, J. K., Taylor, Z., Filmore, M., Pierce, F., Buchanan, J., Lincoln, A., Johnson, A., Grant, U. S., Hayes, R. B., Garfield, . . . Trump, D.

When creating an in-text citation for a source with 3 or more authors, use "et al." after the first author's name. This helps abbreviate the mention.

6th Edition: (Honda, Johnson, Prosser, Rossi, 2019)

7th Edition: (Honda et al., 2019)

Tables and Figures

Instead of having different formats for tables and figures, both use one standardized format. Now both tables and figures have a number, a title, name of the table/figure, and a note at the bottom.

If you're still typing into Google "how to cite a website APA" among other related questions and keywords, click here for further reading on the style.

When you're through with your writing, toss your entire paper into the Citation Machine Plus plagiarism checker, which will scan your paper for grammar edits and give you up to 5 suggestions cards for free! Worry less about a determiner, preposition, or adverb out of place and focus on your research!

References

American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.) (2020). American Psychological Association. https://doi.org/10.1037/0000165-000
Updated March 3, 2020 Written and edited by Michele Kirschenbaum and Wendy Ikemoto. Michele Kirschenbaum has been an awesome school librarian since 2006 and is an expert in citing sources. Wendy Ikemoto has a master's degree in library and information science and has been working for Citation Machine since 2012.

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Generate APA citations in seconds. Start citing books, websites, journals, and more with the Citation Machine® APA Citation Generator.

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ADHA Code of Ethics

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Oral Cancer Screening

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Overview

Oral cancer screening is an examination performed by a dentist or doctor to look for signs of cancer or precancerous conditions in your mouth.

The goal of oral cancer screening is to identify mouth cancer early, when there is a greater chance for a cure.

Most dentists perform an examination of your mouth during a routine dental visit to screen for oral cancer. Some dentists may use additional tests to aid in identifying areas of abnormal cells in your mouth.

Medical organizations disagree on whether healthy people without risk factors for mouth cancer need oral cancer screening. No single oral exam or oral cancer screening test is proved to reduce the risk of dying of oral cancer. Still, you and your dentist may decide that an oral exam or a special test is right for you based on your risk factors.

Why it's done

The goal of oral cancer screening is to detect mouth cancer or precancerous lesions that may lead to mouth cancer at an early stage - when cancer or lesions are easiest to remove and most likely to be cured.

But no studies have proved that oral cancer screening saves lives, so not all organizations agree about the benefits of an oral exam for oral cancer screening. Some groups recommend screening, while others say there isn't enough evidence to make a recommendation.

People with a high risk of oral cancer may be more likely to benefit from oral cancer screening, though studies haven't clearly proved that. Factors that can increase the risk of oral cancer include:

Tobacco use of any kind, including cigarettes, cigars, pipes, chewing tobacco and snuff, among others

Heavy alcohol use

Previous oral cancer diagnosis

History of significant sun exposure, which increases the risk of lip cancer

The number of people diagnosed with mouth and throat cancers has been rising over the last several years, though it isn't clear why. An increasing number of these cancers are associated with the sexually transmitted infection human papillomavirus (HPV).

If you're concerned about your cancer risk, talk to your doctor about ways you can reduce your risk and which screening tests might be appropriate for you.

Risks

Oral exams for oral cancer screening have some limitations, such as:

Oral cancer screening could lead to additional tests. Many people have sores in their mouths, with the great majority of these sores being noncancerous. An oral exam can't determine which sores are cancerous and which are not.

If your dentist finds an unusual sore, you may go through further testing to determine its cause. The only way to definitively determine whether you have oral cancer is to remove some abnormal cells and test them for cancer with a procedure called a biopsy.

Oral cancer screening can't detect all mouth cancers. It can be difficult to detect areas of abnormal cells just by looking at your mouth, so it's possible that a small cancer or precancerous lesion could go undetected.

Oral cancer screening hasn't been proved to save lives. There's no evidence that routine oral examinations to look for signs of oral cancer can reduce the number of deaths caused by oral cancer. However, screening for oral cancer may help find cancers early - when cure is more likely.

How you prepare

Oral cancer screening doesn't require any special preparation. Oral cancer screening is typically performed during a routine dental appointment.

What you can expect

During an oral cancer screening exam, your dentist looks over the inside of your mouth to check for red or white patches or mouth sores. Using gloved hands, your dentist also feels the tissues in your mouth to check for lumps or other abnormalities. The dentist may also examine your throat and neck for lumps.

Additional tests

Some dentists use special tests in addition to the oral exam to screen for oral cancer. It's not clear if these tests offer any additional benefit over the oral exam. Special tests may involve:

Oral cancer screening dye. Rinsing your mouth with a special blue dye before an exam. Abnormal cells in your mouth may take up the dye and appear blue.

Oral cancer screening light. Shining a light in your mouth during an exam. The light makes healthy tissue appear dark and makes abnormal tissue appear white.

Results

If your dentist discovers any signs of mouth cancer or precancerous lesions, he or she may recommend:

A follow-up visit in a few weeks to see if the abnormal area is still present and note whether it has grown or changed over time.

A biopsy procedure to remove a sample of cells for laboratory testing to determine whether cancer cells are present. Your dentist may perform the biopsy, or you may be referred to a doctor who specializes in oral cancer diagnosis and treatment.

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Oral cancer screening is an examination performed by a dentist or doctor to look for signs of cancer or precancerous conditions in your mouth. The goal of oral cancer screening is to identify mouth cancer early, when there is a greater chance for a cure.

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Oral cancer Screening tools

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On This Page

Screening is looking for cancer before a person has any symptoms. This can help find cancer at an early stage. When abnormal tissue or cancer is found early, it may be easier to treat. By the time symptoms appear, cancer may have begun to spread.

Scientists are trying to better understand which people are more likely to get certain types of cancer. They also study the things we do and the things around us to see if they cause cancer. This information helps doctors recommend who should be screened for cancer, which screening tests should be used, and how often the tests should be done.

It is important to remember that your doctor does not necessarily think you have cancer if he or she suggests a screening test. Screening tests are given when you have no cancer symptoms.

If a screening test result is abnormal, you may need to have more tests done to find out if you have cancer. These are called diagnostic tests.

Key Points

Oral cavity and nasopharyngeal cancers are diseases in which malignant (cancer) cells form in the mouth and throat.

The number of new cases of oral cavity and nasopharyngeal cancers and the number of deaths from these cancers vary by sex and geographic region.

Different factors increase or decrease the risk of oral cavity and nasopharyngeal cancers.

Oral cavity and nasopharyngeal cancers are diseases in which malignant (cancer) cells form in the mouth and throat.

Oral cavity cancer usually forms in the squamous cells (thin, flat cells lining the inside of the oral cavity).

Oral cavity cancer forms in any of these tissues of the oral cavity:

The lips.

The front two thirds of the tongue.

The gingiva (gums).

The buccal mucosa (the lining of the inside of the cheeks).

The floor (bottom) of the mouth under the tongue.

The hard palate (the front of the roof of the mouth).

The retromolar trigone (the small area behind the wisdom teeth).

Enlarge

Pharyngeal cancer forms in the tissues of the pharynx (throat), including the nasopharynx, oropharynx, and hypopharynx. This summary covers nasopharyngeal cancer, which forms in the tissue of the nasopharynx (the upper part of the throat behind the nose).

Enlarge

See the following PDQ summaries for more information about the prevention, diagnosis, and treatment of head and neck cancers, including oral cavity cancer and nasopharyngeal cancer:

The number of new cases of oral cavity and nasopharyngeal cancers and the number of deaths from these cancers vary by sex and geographic region.

From 2008 to 2017, the number of new cases of oral cavity cancer slightly increased.

Oral cavity cancer is more common in men than in women. Although oral cavity cancer may occur in adults of any age, it occurs most often in those aged 75 to 84 years.

France, Brazil, and parts of Asia have much higher rates of oral cavity cancer than most other countries.

Nasopharyngeal cancer is rare in the United States. It is more common in parts of Asia, the Arctic region, North Africa, and the Middle East.

Different factors increase or decrease the risk of oral cavity and nasopharyngeal cancers.

Anything that increases your chance of getting a disease is called a risk factor. Anything that decreases your chance of getting a disease is called a protective factor.

Being infected with Epstein-Barr virus (EBV) increases the risk of nasopharyngeal cancer.

For more information about risk factors and protective factors for oral cavity cancer, see the PDQ summaries on Oral Cavity, Oropharyngeal, Hypopharyngeal, and Laryngeal Cancers Prevention and Lip and Oral Cavity Cancer Treatment (Adult).

Key Points

Tests are used to screen for different types of cancer when a person does not have symptoms.

There are no standard or routine screening tests for oral cavity and nasopharyngeal cancers.

Screening tests for oral cavity and nasopharyngeal cancers are being studied in clinical trials.

Tests are used to screen for different types of cancer when a person does not have symptoms.

Scientists study screening tests to find those with the fewest harms and most benefits. Cancer screening trials also are meant to show whether early detection (finding cancer before it causes symptoms) helps a person live longer or decreases a person's chance of dying from the disease. For some types of cancer, the chance of recovery is better if the disease is found and treated at an early stage.

There are no standard or routine screening tests for oral cavity and nasopharyngeal cancers.

No studies have shown that screening for oral cavity cancer and nasopharyngeal cancer would lower the risk of dying from these diseases.

A dentist or medical doctor may check the oral cavity during a routine check-up. The exam will include looking for lesions, including areas of leukoplakia (an abnormal white patch of cells) and erythroplakia (an abnormal red patch of cells). Leukoplakia and erythroplakia lesions on the mucous membranes may become cancerous.

If lesions are seen in the mouth, the following procedures may be used to find abnormal tissue that might become oral cavity cancer:

Toluidine blue stain: A procedure in which lesions in the mouth are coated with a blue dye. Areas that stain darker are more likely to be cancer or become cancer.

Fluorescence staining: A procedure in which lesions in the mouth are viewed using a special light. After the patient uses a fluorescent mouth rinse, normal tissue looks different from abnormal tissue when seen under the light.

Exfoliative cytology: A procedure to collect cells from the oral cavity. A piece of cotton, a brush, or a small wooden stick is used to gently scrape cells from the lips, tongue, or mouth. The cells are viewed under a microscope to find out if they are abnormal.

Brush biopsy: The removal of cells using a brush that is designed to collect cells from all layers of a lesion. The cells are viewed under a microscope to find out if they are abnormal.

More than half of oral cancers have already spread to lymph nodes or other areas by the time they are found.

Epstein-Barr virus (EBV) has been linked to nasopharyngeal cancer. Screening for nasopharyngeal cancer using the EBV antibody test or EBV DNA test has been studied. These are laboratory tests used to check the blood for EBV antibodies or EBV DNA. If EBV antibodies or DNA are found in the blood more tests may be done to check for nasopharyngeal cancer. No studies have shown that screening would decrease the risk of dying from this disease.

Screening tests for oral cavity and nasopharyngeal cancers are being studied in clinical trials.

Information about clinical trials supported by NCI can be found on NCI's clinical trials search webpage. Clinical trials supported by other organizations can be found on the ClinicalTrials.gov website.

Key Points

Screening tests have risks.

The risks of screening for oral cavity and nasopharyngeal cancers include the following:

Finding these cancers may not improve health or help a person live longer.

False-negative test results can occur.

False-positive test results can occur.

Misdiagnosis can occur.

Screening tests have risks.

Decisions about screening tests can be difficult. Not all screening tests are helpful and most have risks. Before having any screening test, you may want to discuss the test with your doctor. It is important to know the risks of the test and whether it has been proven to reduce the risk of dying from cancer.

The risks of screening for oral cavity and nasopharyngeal cancers include the following:

Finding these cancers may not improve health or help a person live longer.

Some cancers never cause symptoms or become life-threatening, but if found by a screening test, the cancer may be treated. Finding these cancers is called overdiagnosis. It is not known if treatment of oral cavity cancer or nasopharyngeal cancer would help you live longer than if no treatment were given, and treatments for cancer, such as surgery and radiation therapy, may have serious side effects.

False-negative test results can occur.

Screening test results may appear to be normal even though oral cavity cancer or nasopharyngeal cancer is present. A person who receives a false-negative test result (one that shows there is no cancer when there really is) may delay seeking medical care even if there are symptoms.

False-positive test results can occur.

Screening test results may appear to be abnormal even though no cancer is present. A false-positive test result (one that shows there is cancer when there really isn't) can cause anxiety and is usually followed by more tests and procedures (such as biopsy), which also have risks.

Misdiagnosis can occur.

A biopsy is needed to diagnose oral cavity and nasopharyngeal cancers. Cells or tissues are removed from the oral cavity or nasopharynx and viewed under a microscope by a pathologist to check for signs of cancer. When the cells are cancer and the pathologist reports them as not being cancer, the cancer is misdiagnosed. Cancer is also misdiagnosed when the cells are not cancer and the pathologist reports there is cancer. When cancer is misdiagnosed, treatment that is needed may not be given or treatment may be given that is not needed.

About PDQ

Physician Data Query (PDQ) is the National Cancer Institute's (NCI's) comprehensive cancer information database. The PDQ database contains summaries of the latest published information on cancer prevention, detection, genetics, treatment, supportive care, and complementary and alternative medicine. Most summaries come in two versions. The health professional versions have detailed information written in technical language. The patient versions are written in easy-to-understand, nontechnical language. Both versions have cancer information that is accurate and up to date and most versions are also available in Spanish.

PDQ is a service of the NCI. The NCI is part of the National Institutes of Health (NIH). NIH is the federal government's center of biomedical research. The PDQ summaries are based on an independent review of the medical literature. They are not policy statements of the NCI or the NIH.

Purpose of This Summary

This PDQ cancer information summary has current information about oral cavity and nasopharyngeal cancers screening. It is meant to inform and help patients, families, and caregivers. It does not give formal guidelines or recommendations for making decisions about health care.

Reviewers and Updates

Editorial Boards write the PDQ cancer information summaries and keep them up to date. These Boards are made up of experts in cancer treatment and other specialties related to cancer. The summaries are reviewed regularly and changes are made when there is new information. The date on each summary ("Updated") is the date of the most recent change.

The information in this patient summary was taken from the health professional version, which is reviewed regularly and updated as needed, by the PDQ Screening and Prevention Editorial Board.

Clinical Trial Information

A clinical trial is a study to answer a scientific question, such as whether one treatment is better than another. Trials are based on past studies and what has been learned in the laboratory. Each trial answers certain scientific questions in order to find new and better ways to help cancer patients. During treatment clinical trials, information is collected about the effects of a new treatment and how well it works. If a clinical trial shows that a new treatment is better than one currently being used, the new treatment may become "standard." Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.

Clinical trials can be found online at NCI's website. For more information, call the Cancer Information Service (CIS), NCI's contact center, at 1-800-4-CANCER (1-800-422-6237).

Permission to Use This Summary

PDQ is a registered trademark. The content of PDQ documents can be used freely as text. It cannot be identified as an NCI PDQ cancer information summary unless the whole summary is shown and it is updated regularly. However, a user would be allowed to write a sentence such as "NCI's PDQ cancer information summary about breast cancer prevention states the risks in the following way: [include excerpt from the summary]."

The best way to cite this PDQ summary is:

PDQ® Screening and Prevention Editorial Board. PDQ Oral Cavity and Nasopharyngeal Cancers Screening. Bethesda, MD: National Cancer Institute. Updated <MM/DD/YYYY>. Available at: https://www.cancer.gov/types/head-and-neck/patient/oral-screening-pdq. Accessed <MM/DD/YYYY>. [PMID: 26389441]

Images in this summary are used with permission of the author(s), artist, and/or publisher for use in the PDQ summaries only. If you want to use an image from a PDQ summary and you are not using the whole summary, you must get permission from the owner. It cannot be given by the National Cancer Institute. Information about using the images in this summary, along with many other images related to cancer can be found in Visuals Online. Visuals Online is a collection of more than 3,000 scientific images.

Disclaimer

The information in these summaries should not be used to make decisions about insurance reimbursement. More information on insurance coverage is available on Cancer.gov on the Managing Cancer Care page.

Contact Us

More information about contacting us or receiving help with the Cancer.gov website can be found on our Contact Us for Help page. Questions can also be submitted to Cancer.gov through the website's E-mail Us.

If you would like to reproduce some or all of this content, see Reuse of NCI Information for guidance about copyright and permissions. In the case of permitted digital reproduction, please credit the National Cancer Institute as the source and link to the original NCI product using the original product's title; e.g., "Oral Cavity and Nasopharyngeal Cancers Screening (PDQ®)-Patient Version was originally published by the National Cancer Institute."

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Oral Cavity and Nasopharyngeal Cancers Screening (PDQ®)-Patient Version

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On This Page Screening is looking for cancer before a person has any symptoms. This can help find cancer at an early stage. When abnormal tissue or cancer is found early, it may be easier to treat. By the time symptoms appear, cancer may have begun to spread.