Endokronlar: Derleme

Endodontik tedavili dişlerin ideal restorasyonu literatürde geniş yer tutan ve tartışmalı bir konudur. Sağlıklı diş dokusunu korumak, diş-restorasyon bütünlüğünün mekanik stabilizasyonunu sağlamaya yardımcı olması, adezyon için uygun yüzey miktarının artması ve böylece restoratif tedavinin uzun dönem başarısını olumlu yönde etkilemesi için gereklidir. Pulpanın uzaklaştırılması ile canlılığını kaybeden devital dişler, vital dişlere kıyasla daha yüksek biyomekanik başarısızlık riski taşımaktadırlar. Adeziv sistemlerin gelişmesiyle birlikte post-kor restorasyonlarına olan ihtiyaç da azalmaktadır. Özellikle aşırı madde kaybına sahip endodontik tedavili dişlerin restorasyonunda, geleneksel post-kor ve sabit bölümlü protezlere alternatif olarak endokron restorasyonlar kullanılmaya başlanmıştır. Geleneksel yöntemlere kıyasla endokronların estetik, mekanik performanslarının daha iyi olması, maliyetinin düşük olması ve kısa sürede yapılmaları avantajlarıdır.

Anahtar Kelimeler:

Endokron, adeziv restorasyon, kanal tedavili diş

ENDOCROWNS: REVIEW

The ideal restoration of endodontically treated teeth (ETT) has been widely and controversially discussed in the literature. Prevention of healthy dental structure is essential to help mechanical stabilization of tooth-restoration integrity, increase the amount of suitable surfaces for adhesion and thus positively affect the long-term success. ETT are affected by a higher risk of biomechanical failure than vital teeth. With the development of adhesive systems, the need for post-core restorations is also reduced. Especially for restoration of excessively damaged ETT, endocrowns have been used as an alternative to the conventional post-core and fixed partial dentures. Compared to conventional methods, good aesthetics, better mechanical performance, and less cost and clinic time are the advantages of endocrowns

Keywords:

Endocrown, adhesive restoration, endodontically treated teeth,

PDF

___

1. Robbins JW. Restoration of the endodontically treated tooth. Dent Clin North Am 2002;46(2):367-384.
2. Dietschi D, Duc O, Krejci I, Sadan A. Biomechanical considerations for the restoration of endodontically treated teeth: A systematic review of the literature, part ii (evaluation of fatigue behavior, interfaces, and in vivo studies). Quintessence Int 2008;39(2):117-129.
3. Morgano SM, Hashem AF, Fotoohi K, Rose L. A nationwide survey of contemporary philosophies and techniques of restoring endodontically treated teeth. J Prosthet Dent 1994;72(3):259-267.
4. Zarone F, Sorrentino R, Apicella D, Valentino B, Ferrari M, Aversa R, Apicella A. Evaluation of the biomechanical behavior of maxillary central incisors restored by means of endocrowns compared to a natural tooth: A 3d static linear finite elements analysis. Dent Mater 2006;22(11):1035-1044.
5. Chang CY KJ, Lin YS, Chang YH. Fracture resistance and failure modes of CEREC endocrowns and conventional post and core-supported CEREC crowns. J Dent Sci 2009;4(3):110-117.
6. Ferrari M, Vichi A, Mannocci F, Mason PN. Retrospective study of the clinical performance of fiber posts. Am J Dent 2000;13(Spec No):9B- 13B.
7. Assif D, Nissan J, Gafni Y, Gordon M. Assessment of the resistance to fracture of endodontically treated molars restored with amalgam. J Prosthet Dent 2003;89(5):462-465.
8. Johnson JK, Schwartz NL, Blackwell RT. Evaluation and restoration of endodontically treated posterior teeth. J Am Dent Assoc 1976;93(3):597-605.
9. Linn J, Messer HH. Effect of restorative procedures on the strength of endodontically treated molars. J Endod 1994;20(10):479-485.
10. Lander E, Dietschi D. Endocrowns: A clinical report. Quintessence Int 2008;39(2):99-106.
11. Reeh ES, Douglas WH, Messer HH. Stiffness of endodontically-treated teeth related to restoration technique. J Dent Res 1989;68(11):1540-1544.
12. Oliveira Fde C, Denehy GE, Boyer DB. Fracture resistance of endodontically prepared teeth using various restorative materials. J Am Dent Assoc 1987;115(1):57-60.
13. Reeh ES, Messer HH, Douglas WH. Reduction in tooth stiffness as a result of endodontic and restorative procedures. J Endod 1989;15(11):512- 516.
14. Faria AC, Rodrigues RC, de Almeida Antunes RP, de Mattos Mda G, Ribeiro RF. Endodontically treated teeth: Characteristics and considerations to restore them. J Prosthodont Res 2011;55(2):69- 74.
15. Papa J, Cain C, Messer HH. Moisture content of vital vs endodontically treated teeth. Endod Dent Traumatol 1994;10(2):91-93.
16. Trope M, Ray HL, Jr. Resistance to fracture of endodontically treated roots. Oral Surg Oral Med Oral Pathol 1992;73(1):99-102.
17. Krejci I, Stavridakis M. New perspectives on dentin adhesion--differing methods of bonding. Pract Periodontics Aesthet Dent 2000;12(8):727- 732.
18. Dietschi D, Spreafico R. Current clinical concepts for adhesive cementation of tooth-colored posterior restorations. Pract Periodontics Aesthet Dent 1998;10(1):47-54.
19. Cathro PR, Chandler NP, Hood JA. Impact resistance of crowned endodontically treated central incisors with internal composite cores. Endod Dent Traumatol 1996;12(3):124-128.
20. Sorensen JA, Engelman MJ. Ferrule design and fracture resistance of endodontically treated teeth. J Prosthet Dent 1990;63(5):529-536.
21. Cho GC. Evidence-based approach for treatment planning options for the extensively damaged dentition. J Calif Dent Assoc 2004;32(12):983- 990.
22. Mordohai N, Reshad M, Jivraj SA. To extract or not to extract? Factors that affect individual tooth prognosis. J Calif Dent Assoc 2005;33(4):319- 328.
23. Biacchi GR, Basting RT. Comparison of fracture strength of endocrowns and glass fiber postretained conventional crowns. Oper Dent 2012;37(2):130-136.
24. Christensen GJ. Posts: Necessary or unnecessary? J Am Dent Assoc 1996;127(10):1522-1524, 1526.
25. Gohring TN, Peters OA. Restoration of endodontically treated teeth without posts. Am J Dent 2003;16(5):313-317.
26. Guzy GE, Nicholls JI. In vitro comparison of intact endodontically treated teeth with and without endo-post reinforcement. J Prosthet Dent 1979;42(1):39-44.
27. Pierrisnard L, Bohin F, Renault P, Barquins M. Corono-radicular reconstruction of pulpless teeth: A mechanical study using finite element analysis. J Prosthet Dent 2002;88(4):442-448.
28. Krejci I, Duc O, Dietschi D, de Campos E. Marginal adaptation, retention and fracture resistance of adhesive composite restorations on devital teeth with and without posts. Oper Dent 2003;28(2):127-135.
29. Heydecke G, Butz F, Strub JR. Fracture strength and survival rate of endodontically treated maxillary incisors with approximal cavities after restoration with different post and core systems: An in-vitro study. J Dent 2001;29(6):427-433.
30. Nayyar A, Walton RE, Leonard LA. An amalgam coronal-radicular dowel and core technique for endodontically treated posterior teeth. J Prosthet Dent 1980;43(5):511-515.
31. Van Meerbeek B, Perdigao J, Lambrechts P, Vanherle G. The clinical performance of adhesives. J Dent 1998;26(1):1-20.
32. Lin CL, Chang YH, Pai CA. Evaluation of failure risks in ceramic restorations for endodontically treated premolar with mod preparation. Dent Mater 2011;27(5):431-438.
33. Bindl A, Richter B, Mormann WH. Survival of ceramic computer-aided design/manufacturing crowns bonded to preparations with reduced macroretention geometry. Int J Prosthodont 2005;18(3):219-224.
34. Pissis P. Fabrication of a metal-free ceramic restoration utilizing the monobloc technique. Pract Periodontics Aesthet Dent 1995;7(5):83-94.
35. Bindl A, Mormann WH. Clinical evaluation of adhesively placed cerec endo-crowns after 2 years--preliminary results. J Adhes Dent 1999;1(3):255-265.
36. Dejak B, Mlotkowski A. 3d-finite element analysis of molars restored with endocrowns and posts during masticatory simulation. Dent Mater 2013;29(12):e309-317.
37. Tsai YL, Petsche PE, Anusavice KJ, Yang MC. Influence of glass-ceramic thickness on hertzian and bulk fracture mechanisms. Int J Prosthodont 1998;11(1):27-32.
38. Mormann WH, Bindl A, Luthy H, Rathke A. Effects of preparation and luting system on all-ceramic computer-generated crowns. Int J Prosthodont 1998;11(4):333-339.
39. Valentina V AT, Dejan L, Vojkan L. Restoring endodontically treated teeth with all-ceramic endo-crowns: case report. Stom Glass S 2008;55(1):54-64.
40. Jedynakiewicz NM, Martin N. Cerec: Science, research, and clinical application. Compend Contin Educ Dent 2001;22(6 Suppl):7-13.
41. Altıncı P. Kiremitçi A. Endodontik tedavili dişlerin restorasyonu. Hacettepe Dis Hek Fak Derg 2007;31(3):102-113.
42. El-Damanhoury HM, Haj-Ali RN, Platt JA. Fracture resistance and microleakage of endocrowns utilizing three cad-cam blocks. Oper Dent 2015;40(2):201-210.
43. Terry DA, Leinfelder KF, Maragos C. Developing form, function, and natural aesthetics with laboratory-processed composite resin--part i. Pract Proced Aesthet Dent 2005;17(5):313-318; quiz 320.
44. Gohring TN, Gallo L, Luthy H. Effect of water storage, thermocycling, the incorporation and site of placement of glass-fibers on the flexural strength of veneering composite. Dent Mater 2005;21(8):761-772.
45. Ku CW, Park SW, Yang HS. Comparison of the fracture strengths of metal-ceramic crowns and three ceromer crowns. J Prosthet Dent 2002;88(2):170-175.
46. Ramirez-Sebastia A, Bortolotto T, Roig M, Krejci I. Composite vs ceramic computer-aided design/ computer-assisted manufacturing crowns in endodontically treated teeth: Analysis of marginal adaptation. Oper Dent 2013;38(6):663-673.
47. Ramirez-Sebastia A, Bortolotto T, CattaniLorente M, Giner L, Roig M, Krejci I. Adhesive restoration of anterior endodontically treated teeth: Influence of post length on fracture strength. Clin Oral Investig 2014;18(2):545-554.
48. McCabe JF, Walls AWG. Application of dental materials. 8th Ed., Madlen: Blackwell Science; 1998, p. 189-201.
49. Gregor L, Bouillaguet S, Onisor I, Ardu S, Krejci I, Rocca GT. Microhardness of light- and dual-polymerizable luting resins polymerized through 7.5-mm-thick endocrowns. J Prosthet Dent 2014;112(4):942-948.