Post endodontic restoration.pptx

endodontics

1. Post endodontic restoration –PART 1 Dr GLADSON SELVAKUMAR

2. INTRODUCTION 20XX PRESENTATION TITLE 2

3. CAUSES OF FAILURE IN ENDODONTICALLY TREATED TEETH PERSISTANT INTRA RADICULAR INFECTION POST ENDODONTIC RESTORATIVE FAILURE 20XX PRESENTATION TITLE 3

4. CAUSES OF TOOTH LOSS CARIES TRAUMA PROCEDURAL ERRORS

5. 20XX POST ENDO 5 ASSESMENT OF RESTORABILITY

6. YES RETREAT MONITOR EXTRACT

7. 20XX PRESENTATION TITLE 7

8. 20XX PRESENTATION TITLE 8

9. 20XX PRESENTATION TITLE 9 MARGINAL RIDGE CINGULUM INCISAL EDGE CONSERVATIVE MANAGEMENT FULL COVERAGE CROWN POST AND CORE +CROWN (PRE FABRICATED /CUSTOM MADE POST)

10. 20XX PRESENTATION TITLE 10 CONSERVATIVE MANAGEMENT *ONLAY ENTRANCE FILLING + FULL COVERAGE CROWN POST AND CORE +CROWN (PRE FABRICATED / CUSTOM MADE POST)

11. 20XX PRESENTATION TITLE 11

12. 20XX PRESENTATION TITLE 12

13. 20XX PRESENTATION TITLE 13

14. WHY ENDODONTIC TREATED TEETH ARE WEEK ? 20XX PRESENTATION TITLE 14 MOISTURE LOSS ARCHITECTURAL CHANGES BIOMACHANICAL BEHAVIOUR BIOLOGICAL WIDTH PROTECTING REMAINING CORONAL TISSUES

15. TREATMENT PLANNING AFTER ENDODONTIC TREATMENT 20XX PRESENTATION TITLE 15 AMOUNT OF REMAINING TOOTH STRUCTURE FUNCTIONAL DEMANDS NEED FOR THE TOOTH AS ABUTMENT

16. CHALLENGES FACED BY MINIMAL REMAINING TOOTH STRUCTURE 20XX PRESENTATION TITLE 16 INCREASED RISK OF FRACTURE DECREASED RETENTION

17. CORE 20XX PRESENTATION TITLE 17 CORE MATERIALS COMPOSITE SILVER AMALGAM CAST GOLD GLASS IONOMER CEMENT

18. CORE BUILD UP 20XX PRESENTATION TITLE 18

19. PART II 20XX PRESENTATION TITLE 19

20. P OST & C ORE 20XX POST ENDODONTIC RESTORATION 20

21. IDEAL FEATURES - POST SYSTEM 20XX PRESENTATION TITLE 21 PROVIDE RETENTIVENESS TO THE CORE EASY RETRIEVABLITY MATERIAL COMPATIBILITY WITH CORE RESISTENCE TO DISPLACEMENT ESTHETIC COMPATIBILITY EVEN DISTRIBUTION OF FUNCTIONAL STRESS ALONG THE ROOT SURFACE PHYSICAL PROPERTIES COMPATIBLE TO DENTIN

22. PRINCIPLES –POST AND CORE (TREATMENT PLANNING ) 20XX PRESENTATION TITLE 22 POST LENGTH TOOTH ANATOMY POST WIDTH CANAL CONFIGURATION POST DESIGN LUTING CEMENT

23. POST LENGTH 20XX PRESENTATION TITLE 23 LENGTH OF THE ROOT SHOULD BE CONSIDERED SELECTION OF POST. GREATER THE POST LENGTH BETTER THE RETENTION AND STRESS DISTRIBUTION . *LENGTH OF THE CROWN *2/3 RD LENGTH OF THE ROOT 3-5mm GP SHOULD BE LEFT INTACT

24. Tooth anatomy 20XX PRESENTATION TITLE 24

25. 20XX PRESENTATION TITLE 25 Molar post should never extend more than 7mm into the root canal

26. Post width 20XX PRESENTATION TITLE 26 Points to remember in selection of post width 1.Preserving the tooth structure 2.Reducing the chances of perforation 3.Permitting the restored tooth to resist forces

27. 3 categories ( Lloyd and palik ) 20XX PRESENTATION TITLE 27 1 . CONSERVATIONIST 2. PRESERVATIONIST 3. PROPORTIONIST

28. RECOMMENDED POST WIDTH (TILK et al ) Maxilla (mm) Mandibular (mm) C.I 1.1 0.7 L.I 0.9 0.7 CANAINE 1.0 0.9 PREMOLARS AND MOLARS 0.9 0.9 20XX PRESENTATION TITLE 28

29. Canal configuration post 20XX PRESENTATION TITLE 29 Post fits into canal – prefabricated post Excess canal space – custom made post

30. Post design 20XX PRESENTATION TITLE 30 Based on shape Parallel - parallel side –serrated and vented post -parallel side threaded post -parallel side threaded split shank posts Tapered -tapered smooth sided posts - tapered self threading posts Parallel and tapered

31. 20XX PRESENTATION TITLE 31 Based on surface characteristics -Active –threaded / serreated -Passive – smooth surface

32. 20XX PRESENTATION TITLE 32 Based on fabrication methods -Custom cast post and cores Advantages : Better fit Adopts to large /irregular shaped canal Core can be angled Strong (post + core)

33. 20XX PRESENTATION TITLE 33 Disadvantages 2 appointments Less retentive than parallel pre fabricated posts Temporization Corrosion Techniques Direct Indirect technique

34. Prefabricated post and core 20XX PRESENTATION TITLE 34 -metal post and core – Nicr /ss/titanium -ceramic post and core – low flexural strength - Fiber reinforced post and core (glass /carbon fibers) Types –glass fibers E GLASS/S GLASS /QUARTZ

35. 20XX PRESENTATION TITLE 35 Advantages More homogenous stress distribution Better biomechanical performance Mode of failure is favourable (catastrophic) Esthetics Good adhesion to cementing medium

36. LUTING CEMENT 20XX PRESENTATION TITLE 36 MOST COMMON LUTING AGENTS RESIN LUTING CEMENT GLASS IONOMER CEMENT RESIN MODIFIED GLASS IONOMER CEMENT ZINC PHOSPHATE CEMENT

37. 20XX PRESENTATION TITLE 37

38. 20XX PRESENTATION TITLE 38