Correa VS, Felipe IJ, Sol GA, Naranjo M

Language: Spanish
References: 34
Page: 53-69
PDF size: 695.16 Kb.

ABSTRACT

Objective: Using the finite element method, determine the resistance of teeth restored with prefabricated posts to maximum static intercuspidation loads, cyclical mastication loads and bruxism, and analyze the effect of periodontal loss on resistance by restorations.
Methods: Using the finite element method, an in vitro study was conducted of teeth with periodontal loss rehabilitated with prefabricated glass fiber, carbon and titanium posts. Reconstruction of the teeth was based on tomographic images from a periodontically healthy patient.
Results: It was shown that rehabilitations did not tend to yield to static loads, irrespective of post material or the degree of periodontal loss. For bruxism and 4 mm periodontal loss, dentin durability was 60 000 cycles, irrespective of post material. For mastication loads and a healthy periodont, dentin failure occurs at 100 000 cycles with titanium posts, 200 000 cycles with carbon fiber posts, and 1 100 000 cycles with glass fiber posts. For 2 mm periodontal loss, dentin durability decreased to 4 000 cycles with titanium posts, 5 000 cycles with carbon fiber posts, and 7 000 cycles with glass fiber posts. For 4 mm periodontal loss, dentin durability is estimated at 1 000 cycles, irrespective of post material.
Conclusions: Restorations with glass fiber, carbon and titanium prefabricated posts do not yield to maximum static intercuspidation loads, irrespective of the degree of periodontal loss. Prefabricated posts exhibit endless resistance to cyclic loads. Dentin is the structure most severely affected by such events.

REFERENCES

1. Halpern BG. Restoration of endodontically treated teeth. A conservative approach. Dent. Clin. North Am. 1985 Abr;29(2):293-303.

2. Morgano SM. Restoration of pulpless teeth: application of traditional principles in present and future contexts. J Prosthet Dent. 1996 Abr;75(4):375-80.

3. Zogheib LV, Pereira JR, do Valle AL, de Oliveira JA, Pegoraro LF. Fracture resistance of weakened roots restored with composite resin and glass fiber post. Braz Dent J. 2008;19(4):329-33.

4. Assif D, Gorfil C. Biomechanical considerations in restoring endodontically treated teeth. J Prosthet Dent. 1994 Jun;71(6):565-7.

5. Sirimai S, Riis DN, Morgano SM. An in vitro study of the fracture resistance and the incidence ofof vertical root fracture of pulpless teeth restored with six post-andcorecore systems. J Prosthet Dent. 1999 Mar;81(3):262-9.

6. Dietschi D, Duc O, Krejci I, Sadan A. Biomechanical considerations for the restoration of endodontically treated teeth: a systematic review of the literature Part 1. Composition and micro- and macrostructure alterations. Quintessence Int. 2007 Oct;38(9):733-43.

7. Pilo R, Shapenco E, Lewinstein I. Residual dentin thickness in bifurcated maxillary first premolars after root canal and post space preparation with parallel sided drills. J Prosthet Dent 2008;99:267-73.

8. McLaren JD, McLaren CI, Yaman P, Bin- Shuwaish MS, Dennison JD, McDonald NJ. The effect of post type and length on the fracture resistance of endodontically treated teeth. J Prosthet Dent 2009;101:174-82.

9. Baba NZ, Golden G, Goodacre CJ. Nonmetallic prefabricated dowels: a review of compositions, properties, laboratory, and clinical test results. J Prosthodont. 2009 Ago;18(6):527-36.

10. Ma PS, Nicholls JI, Junge T, Phillips KM. Load fatigue of teeth with different ferrule lengths, restored with fiber posts, composite resin cores, and all-ceramic crowns. J Prosthet Dent. 2009 Oct;102(4):229-34.

11. Gómez-Polo M, Llidó B, Rivero A, del Río J, Celemín A. A 10-year retrospective study of the survival rate of teeth restored with metal prefabricated posts versus cast metal posts and cores. Journal of Dentistry. 2010;38:916-20.

12. Chuang SF, Yaman P, Herrero A, Dennison J, Chang CH. Influence of post material and length on endodontically treated incisors: An in vitro and finite element study. J Prosthet Dent. 2010;104:379-88.

13. Maceri F, Martignoni M, Vairo G. Mechanical behaviour of endodontic restorations with multiple prefabricated posts: A finite-element approach. Journal of Biomechanics. 2007;40:2386-98.

14. Ni C, Chang C, Chen T, Chuang S. A multiparametric evaluation of postrestored teeth with simulated bone loss. Journal of Biomechanical Behavior of Biomedical Materials. 2011; 4:322-30.

15. Pegoretti A, Fambri L, Zappini G, Bianchetti M. Finite element analysis of a glass fibre reinforced composite endodontic post. Biomaterials. 2002 Jul; 23(13):2667-82.

16. Eraslan O, Aykent F, Yücel MT, Akman S. The finite element analysis of the effect of ferrule height on stress distribution at post-and-core-restored all-ceramic anterior crowns. Clin Oral Investig. 2009 Jun;13(2):223-7.

17. Stewardson D, Shortall A, Marquis P, Lumley P. The flexural properties of endodontic post materials. Dental Materials. 2010;26:730-6.

18. Li D, Brantley WA, Mitchell JC, Daehn GS, Monaghan P, Papazoglou E. Fatigue studies of high-palladium dental casting alloys: Part I. Fatigue limits and fracture characteristics. J Mater Sci Mater Med. 2002 Abr;13(4):361-7.

19. Kinney JH, Balooch M, Marshall GW, Marshall SJ. A micromechanics model of the elastic properties of human dentine. Arch. Oral Biol. 1999 Oct;44(10):813-22.

20. Genovese K, Lamberti L, Pappalettere C. Finite element analysis of a new customized composite post system for endodontically treated teeth. J Biomech. 2005 Dic;38(12):2375-89.

21. Suansuwan N, Swain MV. Determination of elastic properties of metal alloys and dental porcelains. J Oral Rehabil. 2001 Feb;28(2):133-9.

22. O'Mahony AM, Williams JL, Spencer P. Anisotropic elasticity of cortical and cancellous bone in the posterior mandible increases peri-implant stress and strain under oblique loading. Clin Oral Implants Res. 2001;12(6):648-57.

23. Dechow PC, Schwartz-Dabney CL, Ashman RB. Elastic Propertiesproperties of the human mandibular corpus. In: Goldstein SA, Carlson DS (eds). Bone biodynamics in orthodontic and orthopedic treatment. Ann Arbor: Craniofacial Growth Series, Center of Human Growth and Development. 1992;299-314.

24. Tanne K, Tanaka E, Sakuda M. The Elastic Modulus of the Temporomandibular Joint Disc from Adult Dogs. Journal of Dental Research. 1991;70(12):1545-8.

25. van Eijden TMGJ. Three-dimensional analyses of human bite-force magnitude and moment. Archives of Oral Biology. 1991;36(7):535-9.

26. Nishigawa K, Bando E, Nakano M. Quantitative study of bite force during sleep associated bruxism. J Oral Rehabil. 2001 May;28(5):485-91.

27. Youssef RE, Throckmorton GS, Ellis E 3rd, Sinn DP. Comparison of habitual masticatory patterns in men and women using a custom computer program. J Prosthet Dent. 1997 Ago;78(2):179-86.

28. Chung D. Carbon Fiber Composites. Butterworth-Heinemann; 1994. p. 102-3.

29. Zuo J.H, Wang Z.G, Han E.H. Effect of microstructure on ultra-high cycle fatigue behavior of Ti-6Al-4V. Materials Science and Engineering. 2008;473:147-52.

30. Kruzic J.J, Ritchie R.O. Fatigue of mineralized tissues: Cortical bone and dentin. J of the Mech BahaviorBehavior of Biomedical Materials I. 2008:3-17.

31. Naumann M, Rosentritt M, Preuss A, Dietrich T. The effect of alveolar bone loss on the load capability of restored endodontically treated teeth: a comparative in vitro study. J Dent. 2006 Nov;34(10):790-5.

32. Yamamoto M, Miura H, Okada D, Komada W, Masuoka D. Photoelastic stress analysis of different post and core restoration methods. Dent Mater J. 2009 Mar;28(2):204-11.

33. Asmussen E, Peutzfeldt A, Heitmann T. Stiffness, elastic limit, and strength of newer types of endodontic posts. J Dent. 1999 May;27(4):275-8.

34. Khaled AL-Omiri M, Mahmoud AA, Rayyan MR, Abu-Hammad O. Fracture Resistance of Teeth Restored with Post-retained Restorations: An Overview. Journal of Endodontics. 2010;36(9):1439-49.