5th BDS Indirect restorations question wall by Manal Ablal https://padlet.com/maaablal/kak557xa0h7d Indirect restorations en-us 2018-11-01 11:18:45 UTC 2023-02-27 07:07:14 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Soccerball.png Unsure of Abbreviation! https://padlet.com/maaablal/kak557xa0h7d/wish/486041093 I've been looking through the 5th year Crown and Bridge Revision Lecture from 2018 and was unsure what PM1 and PM was referring to in this slide on occlusion: 
'In this case, the length of the canine and PM1 can be adjusted so there’s group function/ canine and PM guidance.'
Might be glaringly obvious to others but I'm a bit confused!
Thanks :)
 ]]> 2020-04-01 08:29:46 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/486041093 MCC vs ACC https://padlet.com/maaablal/kak557xa0h7d/wish/486363179 Are there any guidelines to state when an ACC should be used over a MCC please? Thanks!
 ]]> 2020-04-01 11:08:17 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/486363179 Bridge failure https://padlet.com/maaablal/kak557xa0h7d/wish/486368901 When would you decide to remove/section a bridge due to failure? Are there any resources to explain this please?]]> 2020-04-01 11:11:54 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/486368901 RCT https://padlet.com/maaablal/kak557xa0h7d/wish/486584874 When would you carry out RCT through a crown/bridge in contrast to removing the crown/bridge and then carrying out the RCT?]]> 2020-04-01 13:06:44 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/486584874 Are the window technique and the altered cast technique both used for flabby ridge? https://padlet.com/maaablal/kak557xa0h7d/wish/486588028 2020-04-01 13:08:00 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/486588028 Post/Core https://padlet.com/maaablal/kak557xa0h7d/wish/486716194 If a tooth has less than 50% tooth structure remaining, does this mean a direct (composite) core must be provided before provision of the indirect restoration. When would elective RCT and a post-core be justified? ]]> 2020-04-01 13:56:54 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/486716194 How much axial reduction is required for gold onlays? (is it the same as FGSCs?) https://padlet.com/maaablal/kak557xa0h7d/wish/486825145 2020-04-01 14:35:40 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/486825145 maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/487763538 2020-04-01 22:10:49 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/487763538 Occlusion https://padlet.com/maaablal/kak557xa0h7d/wish/488711991 How do you decide if occlusion is unfavourable for crown/bridge work and how do you manage this?]]> 2020-04-02 11:58:08 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/488711991 Self etch and total etch luting agents https://padlet.com/maaablal/kak557xa0h7d/wish/488947142 I understand that the properties of self adhesive cements are slightly compromised in comparison to adhesive cements(total etch luting agents). I'm confused as to why self etch cements are not recommended to be used for high strength ceramics and self adhesives are? Referring to table in 2018 Revision Lecture.]]> 2020-04-02 13:41:44 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/488947142 maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/488961968 2020-04-02 13:47:20 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/488961968 maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/488976671 2020-04-02 13:52:25 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/488976671 If an RBB de-bonds, does the metalwork need to be sandblasted again before re-cementing? If so, would an RBB usually be sent to a lab before re-cementing in practice? Would a ceramic crown that de-bonds also need a HF acid etch before re-cementing with an adhesive? Thank you! https://padlet.com/maaablal/kak557xa0h7d/wish/490862839 2020-04-03 11:41:13 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/490862839 when would you choose a custom made post and core over a pre-fabricated post? Also when is a metal post better than a glass fibre post? https://padlet.com/maaablal/kak557xa0h7d/wish/490992462 2020-04-03 12:52:55 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/490992462 Referral https://padlet.com/maaablal/kak557xa0h7d/wish/493153378 At what complexity level would we refer to a specialist?
Is a GDP able to treat some complexity 2 cases if they felt competent to do so or will they all have to be referred?
Also when referring a complexity 2 case, would that be made to a specialist or could it be made to a GDP with a special interest who has a tier 2 contract?]]> 2020-04-05 11:40:25 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/493153378 RBB vs conventional bridge https://padlet.com/maaablal/kak557xa0h7d/wish/498727535 how do you decide over a RBB or fixed-fixed, fixed-cantilever bridge?

]]> 2020-04-08 13:48:37 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/498727535 PJC https://padlet.com/maaablal/kak557xa0h7d/wish/502742042 Is a Porcelain Jacket Crown just another name for an ACC, or are they two different things?]]> 2020-04-11 08:37:46 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/502742042 Cantilever bridges https://padlet.com/maaablal/kak557xa0h7d/wish/508670758 Does the position of the pontic or abutment dictate whether the cantilever is a mesial or a distal one?
Thanks]]> 2020-04-15 14:51:22 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/508670758 Can you use a tooth with a post and core as an abutment for a cantilever RBB? https://padlet.com/maaablal/kak557xa0h7d/wish/508986388 2020-04-15 16:58:35 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/508986388 Cantilever Bridge https://padlet.com/maaablal/kak557xa0h7d/wish/510500597 Is it always recommended to have a mesial, single abutment for a cantilever bridge or will a distal cantilever still be acceptable? I know that distal cantilevers have a higher failure rate, but if replacing a U3 for example would the U4 provide a better abutment that the U2 as it has a bigger root surface area? Or would it still be more likely to fail as it is a distal abutment? Thanks!

]]> 2020-04-16 12:01:07 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/510500597 RBB retainer https://padlet.com/maaablal/kak557xa0h7d/wish/510580552 what is the maximum thickness of the nickel chromium retainer for a RBB?]]> 2020-04-16 12:47:32 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/510580552 Bridge post extraction https://padlet.com/maaablal/kak557xa0h7d/wish/512854756 After an extraction how long should you wait before placing a bridge? 

]]> 2020-04-17 13:34:05 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/512854756 Cementation/Bonding https://padlet.com/maaablal/kak557xa0h7d/wish/523994755 Is there an absolute indication for a 'Conventional' Cement... when Adhesive bonding is suitable for all tapers and height of coronal tooth structure, is there really an indication for conventional cementation anymore? Despite their longer clinical steps, they have greater bonding and tensile strengths and although technique sensitive (i.e. moisture control), conventional cements (e.g. AquaCem) is also highly soluble and can result in marginal loss of cement.

E.g. a posterior tooth - we may consider conventional cementation, but if we could achieve adequate isolation would we not prefer to place an adhesive cement?

So I was just wondering is there still space for conventional cementation, and maybe any indications/factors where you may use it over adhesive bonding?

Thank you!]]> 2020-04-22 19:18:45 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/523994755 My question is in reference of treatment to indirect restorations. Looking at the literature would it be correct to suggest that indirect composites should be sandblasted over etching, as the alumina helps in the bonding due to the impregnation of the alumina particles in the composite? if etched exposes weakly held filler particles in the indirect composite leading to a weak bond? 2. Silica based ceramics should be acid etched over sandblasting as it exposes structurally stable silica and adhesive resins should be used? Also with zirconia would you sandblast and utilise panavia V5 due to the MDP content? https://padlet.com/maaablal/kak557xa0h7d/wish/525061664 2020-04-23 08:12:00 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/525061664 On the 2019 revision lecture one of the slides suggests when in laterotrusive movement (working side) the mediotrusive (non working) side should have no contacts. Surely non working side "CONTACTS" should not be removed. As contacts are not pathological (i.e no wear facets) and are PASSIVE whilst interferences (wear facets present) should be adjusted/re controured/contralateral adjusments made as they are ACTIVE ? Just slightly confused would like your input. https://padlet.com/maaablal/kak557xa0h7d/wish/525999594 2020-04-23 14:51:53 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/525999594 In a double abutment, which would fail and why - the primary abutment or the secondary abutment? In a cantilever, which is the primary abutment and which is the secondary abutment ? On vital it said: "The primary abutment is the double abutted pair nearest to the edentulous saddle". https://padlet.com/maaablal/kak557xa0h7d/wish/530527804 2020-04-25 23:58:20 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/530527804 What is the best option for replacement of a 6 where the 7 is tilted? A cantilver bridge off the 5, a telescopic retainer, a fixed-movable, a proximal minor retainer? And why? https://padlet.com/maaablal/kak557xa0h7d/wish/530530669 2020-04-26 00:06:07 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/530530669 In the second restorative test a question asked true or false if length was important when transferring from group function to canine guidance? Could I just get further elaboration on why contour is more important then length in this circumstance considering the primary function of canines in gnathologic system is to direct vertical (rather than a horizontal) mandibular jaw movement? What happens when you do not have adequate interocclusal space between canines where contour can be changed? https://padlet.com/maaablal/kak557xa0h7d/wish/530663043 2020-04-26 06:11:25 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/530663043 Can attrition be attributed to CCP (constricted chewing pattern)? https://padlet.com/maaablal/kak557xa0h7d/wish/530664216 2020-04-26 06:13:23 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/530664216 Can zirconia be used for long span bridges if needed? maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/538385009

]]> 2020-04-29 07:58:22 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/538385009 Q: Are telescopic retainers alway used for fixed-moveable design? maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/538390324

]]> 2020-04-29 08:01:04 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/538390324 is there a reading list for fixed pros? maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/538392519 2020-04-29 08:02:15 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/538392519 when providing an indirect restoration, when would it be indicated to not conform to the existing occlusal patterns and existing contacts and vice versa. maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/538394679 2020-04-29 08:03:17 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/538394679 In terms of amount of tooth structure remaining, when is a core build up sufficient and when is a post and core required? maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/538396344 2020-04-29 08:04:04 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/538396344 If you were to prep an upper incisor for a veneer, what material/method would you use as the temporary veneer? maaablal https://padlet.com/maaablal/kak557xa0h7d/wish/538784211 There may not be need to temporise if the prep is limited to enamel and for the short term. Otherwise temporaries can be constructed in composite (integrity) in a similar method as for temporary crowns and spot etched]]> 2020-04-29 10:52:39 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/538784211 why do you need group function in Class II div 1? do you alter the patient's canine guidance to GF if the patient is class II div 1? https://padlet.com/maaablal/kak557xa0h7d/wish/539032389 2020-04-29 12:56:28 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/539032389 What do you use as a temporary restoration for an inlay? cnewey https://padlet.com/maaablal/kak557xa0h7d/wish/540056596 Materials such as Systemp inlay or Telio Inlay. ]]> 2020-04-29 18:33:02 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/540056596 What doe ICD stand for in the onlay presentation? cnewey https://padlet.com/maaablal/kak557xa0h7d/wish/540057564 Intercuspal distance]]> 2020-04-29 18:33:28 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/540057564 What doe PVC stand for in the gold shell crown presentation? cnewey https://padlet.com/maaablal/kak557xa0h7d/wish/540059102 Partial Veneer Crown]]> 2020-04-29 18:34:07 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/540059102 Could you please upload the crown lectures that 3rd years were given, thank you. cnewey https://padlet.com/maaablal/kak557xa0h7d/wish/540060215 Please look in the 5th year revision folder on VITAL. The 3rd year content is also available in your 4th year resources under CCSC.]]> 2020-04-29 18:34:35 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/540060215 If a tooth is broken down in one area in particular, e.g. a palatal cusp has fractured on a premolar, would you still advocate the use of a 1/2 crown or 3/4 crown, leaving the buccal aspect of the tooth intact/unprepared? Also, I assume a resin cement would therefore have to be used due to lack of retention/resistance form from lack of prep? https://padlet.com/maaablal/kak557xa0h7d/wish/540300809 2020-04-29 20:24:31 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/540300809 Why does a class 2 div 1 incisal relationship require a face bow record? https://padlet.com/maaablal/kak557xa0h7d/wish/541579160

]]> 2020-04-30 10:54:20 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/541579160 https://padlet.com/maaablal/kak557xa0h7d/wish/541635721 I'm a little confused about incisal reductions for veneers - do you always need to reduce the incisal edge by 1.5mm or can you leave it untouched and only reduce the labial surface? Thank you. ]]> 2020-04-30 11:26:54 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/541635721 https://padlet.com/maaablal/kak557xa0h7d/wish/541643953 In the fixed pros revision lecture titles Bridge retainers, it says 'avoid heavy load on the pontic (no contact in lateral and protusive)' when talking about fixed cantilever bridges. How would this be achieved, and does this mean an anterior pontic cannot be in anterior guidance?

]]> 2020-04-30 11:31:31 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/541643953 bridge substructures https://padlet.com/maaablal/kak557xa0h7d/wish/546933021 Not sure if this is a silly question but just wondering with regards to bridge substructures - are the substructures made from the different materials i.e. CoCr, zircona, aluminium oxide, lithium disilicate? And if so, are the values listed for connector thickness how thick their substructure needs to be for fracture resistance? Or do they all have metal substructures which need to vary in connector thickness to support the different ceramic suprastructures? Thank you]]> 2020-05-03 14:31:35 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/546933021 Maxillary central incisors replacement https://padlet.com/maaablal/kak557xa0h7d/wish/552155769 What is the appropriate fixed pros replacement if a patient had both upper central incisors missing? All other teeth in the mouth are sound.]]> 2020-05-05 14:01:06 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/552155769 Cantilever failures https://padlet.com/maaablal/kak557xa0h7d/wish/554851073 I was struggling to understand where the forces are dissipated in a mesial cantilever bridge which cause flexion, cement fracture and ultimate failure? I know forces dissipate distally, so would the cement fail distally on the retainer? Also, if there was a double abutment mesial cantilever, where would the cement fracture here - between the two abutments or on the more distal abutment? Thank you]]> 2020-05-06 14:12:08 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/554851073 What are the indications for sectioning a bridge? https://padlet.com/maaablal/kak557xa0h7d/wish/558416542 2020-05-07 19:53:45 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/558416542 Is an ICP record done using a wax record / squash bite? https://padlet.com/maaablal/kak557xa0h7d/wish/562545902 2020-05-10 11:53:42 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/562545902 Am I right in thinking that Alumina and Zirconia crowns cannot be etched and therefore they require a traditional luting cement, as opposed to a resin adhesive cement? https://padlet.com/maaablal/kak557xa0h7d/wish/562665086 2020-05-10 13:22:21 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/562665086 Is a dentine bonded crown based on the same principles as a RBB? As in they help maintain the most tooth structure? https://padlet.com/maaablal/kak557xa0h7d/wish/562856592 2020-05-10 15:17:52 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/562856592 https://padlet.com/maaablal/kak557xa0h7d/wish/567600073 If you were cementing a crown using a resin adhesive but the resin set before you were able to properly clean away the excess, how would you remove the excess? ]]> 2020-05-12 13:59:01 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/567600073 When would you opt to mount casts in RCP rather than ICP on a semi adjustable articulator? Thank you. https://padlet.com/maaablal/kak557xa0h7d/wish/574596072 2020-05-15 09:17:01 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/574596072 Am I correct in saying that the Dahl approach is used to provide extra vertical space anteriorly, whilst using posterior teeth to maintain the existing occlusal relationship. What would you do if you wanted to change the existing occlusal relationship? https://padlet.com/maaablal/kak557xa0h7d/wish/574962838 2020-05-15 12:42:30 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/574962838 In the 2019 revision lecture, a table shows the 10 year success rate of RBBs is 59%, however a prospective study described in the paper below lists the success rate at 80.4%. Which success rate should we quote? https://fgdpscotland.org.uk/wp-content/uploads/2016/05/Dent_Update_2016_Resin-bonded-bridge-design-.pdf https://padlet.com/maaablal/kak557xa0h7d/wish/576605130 2020-05-16 11:44:01 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/576605130 Class III and ACC https://padlet.com/maaablal/kak557xa0h7d/wish/582313032 why can an ACC not be used for a Class III

]]> 2020-05-19 12:32:18 UTC https://padlet.com/maaablal/kak557xa0h7d/wish/582313032