Post and core: a new clinical perspective – myths and facts
DOI:
https://doi.org/10.21270/archi.v10i2.4810Palavras-chave:
Prótese Parcial Fixa, Técnica para Retentor Intrarradicular, Pesquisa em Odontologia, OdontologiaResumo
Objective: The present study aims to describe a literature review on post and core restorations from a new clinical perspective in dentistry. Also, to define the best choice regarding the intraradicular retainer, material used, confection techniques and their possible failures, explaining the myths and the truths about them. Methodology: This literature review was conducted by leading health databases: Pubmed (https://www.ncbi.nlm.nih.gov/pubmed), SCIELO (www.scielo.org) e Google Scholar (https://scholar.google.com.br). The keywords for the textual search were: Denture, Partial, Fixed; Post and Core Technique; Dental Research; Dentistry. Inclusion criteria were: literature on the subject under study, literature of recent years, english and portuguese languages, laboratory and clinical studies, and systematic reviews. Literature Review: Post and core are defined as prosthetic elements that seek intraradicular retention to support prosthetic crowns or unitary restorations. The ideal shape of the intraradicular retainer should supplement the dental remnant, allowing the shape of a prepared tooth to receive a prosthetic crown. In conjunction of the dental remnant, they are responsible for dissipating and absorbing the forces developed during the chewing cycles, without deformation or damaging the minimal cement layer. Conclusion: The evolution of endodontic therapy enables a restoration with greater safety of treated teeth. However, it is necessary to consider the remaining dental structure, mainly because the posts do not provide reinforcement, only retention and resistance to the prosthetic crown.
Downloads
Referências
Fernandes AS, Dessai GS. Factors affecting the fracture resistance of post-core reconstructed teeth: a review. Int J Prosthodont. 2001;14(4):355-63.
Aun CE, Rodrigues Vde C, Debelian GJ, de Moura AA. [Comparative study of three materials used for filling perforations made during intra-radicular dowel preparation]. Rev Faculdade Odontol FZL. 1989;1(1):7-20.
Araújo MS, Vinha D, Turbino ML. Retenção de núcleos intracanal: variação da forma, do tratamento superficial e do agente cimentante. Rev Odontol Univ São Paulo. 1996;10(4):303-7.
Aquilino SA, Caplan DJ. Relationship between crown placement and the survival of endodontically treated teeth. J Prosthet Dent. 2002;87(3):256-63.
Assif D, Oren E, Marshak BL, Aviv I. Photoelastic analysis of stress transfer by endodontically treated teeth to the supporting structure using different restorative techniques. J Prosthet Dent. 1989;61(5):535-43.
Assif D, Bitenski A, Pilo R, Oren E. Effect of post design on resistance to fracture of endodontically treated teeth with complete crowns. J Prosthet Dent. 1993;69(1):36-40.
Bonfante G, Fagnani CM, Miraglia SS, Silva W. Avaliação radiográfica de núcleos metálicos fundidos intrarradiculares. Rev Gaucha Odontol. 2000;48(3):170-74.
Cohen BI, Pagnillo MK, Condos S, Deutsch AS. Four different core materials measured for fracture strength in combination with fi ve different designs of endodontic posts. J Prosthet Dent. 1996;76(5):487-94.
Dinato JC, Fortuna CR, Menin MLF, Quintas A. Restauração de dentes tratados endodoticamente com pinos pré-fabricados. In: Feller C, Gorab R. Atualização na clínica odontológica: cursos antagônicos. São Paulo: Artes Médicas; 2000. p.379-442.
Lopes GR, Freitas VP, Matos JD, Andrade VC, Nishioka RS, Casas EB. Stress distribution in dental roots restored with different post and core materials. J Int Oral Health. 2019;11:127-31.
Heling I, Gorfi l C, Slutzky H, Kopolovic K, Zalkind M, SlutzkyGoldberg I. Endodontic failure caused by inadequate restorative procedures: review and treatment recommendations. J Prosthet Dent. 2002;87(6):674-8.
Heydecke G, Butz F, Hussein A, Strub J. Fracture strength after dynamic loading of endodontically treated teeth restored with different post-and-core systems. J Prosthet Dent. 2002;87(4):438-45.
Heydecke G, Peters MC. The restoration of endodontically treated, single-rooted teeth with cast or direct posts and cores: a systematic review. J Prosthet Dent. 2002;87(4):380-86.
Gateau P, Sabek M, Dailey B. Fatigue testing and microscopic evaluation of post and core restorations under artifi cial crowns. J Prosthet Dent. 1999;82(3):341-48.
Kahn FH. Selecting a post system. J Am Dent Assoc. 1991;122(13):70-1.
Mezzomo, E. Prótese fixa contemporânea. 1st ed. São Paulo: Santos; 2002.
Miranda CC, Umbria EMG, Soares IJ. Núcleos metálicos fundidos. In: Feller C, Gorab R. Atualização na clínica odontológica: cursos antagônicos. São Paulo: Artes Médicas; 2000. p.379-442.
Morgano SM, Brackett SE. Foundation restorations in fixed prosthodontics: curred knowledge and future needs. J Prosthet Dent. 1999;82(6):643-57.
Newman MP, Yaman P, Dennison J, Rafter M, Billy, E. Fracture resistance of endodontically treated teeth restored with composite posts. J Prosthet Dent. 2003;89(4):360-67.
Ottl P, Lauer HC. Success rates for two different types of post-and-cores. J Oral Rehabil. 1998;25(10):752-58.
Reeh ES, Messer HH, Douglas WH. Reduction in tooth stiffness as a result of endodontic and restorative procedures. J Endod 1989;15(11):512-7.
Rota EL. Efeito do acesso endodôntico com diferentes perdas de estrutura coronária na resistência do remanescente dental. RPG Rev Pós-Grad 1998;5(4):259.
Sevuk C, Gür H, Akkayan B. Fabrication of one-piece all-ceramic coronal post and laminate veneer restoration: a clinical report. J Prosthet Dent. 2002;88(6):565-68.
Shillingburg HT, Hobo S, Whitsett LD, Jacobi R, Brackett SE. Fundamentos de prótese fixa. 3. ed. São Paulo: Quintessence; 1998.
Shillingburg HT, Kessler JC. Restauração de dentes tratados endodonticamente. São Paulo: Quintessence; 1991.
Sidoli GE, King PA, Setchell DJ. An in vitro evaluation of a carbon fiber based post and core system. J Prosthet Dent. 1997;78(1):5-9.
Sivers JE, Johnson WT. Restoration of endodontically treated teeth. Dent Clin North Am. 1992;36(3):631-49.
Smith CT, Schuman NJ, Wasson W. Biomechanical criteria for evaluating prefabricated post-and-core systems: a guide for the restorative dentist. Quintessence Int 1998;29(5):305-12.
Standlee PJ, Caputo AA. The retentive and stress distributing properties of split threaded endodontic dowels. J Prosthet Dent 1992;68(3):436-42.
Stockton LW. Factors affecting retention of post systems: a literature review. J Prosthet Dent 1999;81(4):380-85.
Torbjörner A, Karlsson S, Ödman P. Survival rate and failure characteristics for two post designs. J Prosthet Dent. 1995;73(5):439-44.
Zhi-Yue L, Yu-Xing Z. Effects of post-core design and ferrule on fracture resistance of endodontically treated maxillary central incisors. J Prosthet Dent. 2003;89(4):368-73.
Torbjörner A, Fransson B. A literature review on the prosthetic treatment of structurally compromised teeth. Int J Prosthodont. 2004;17(3):369-76.
Soares PV, Santos-Filho PC, Gomide HA, Araujo CA, Martins LR, Soares CJ. Influence of restorative technique on the biomechanical behavior of endodontically treated maxillary premolars. Part II: strain measurement and stress distribution. J Prosthet Dent. 2008;99(2):114-22.
Büttel L, Krastl G, Lorch H, Naumann M, Zitzmann NU, Weiger R. Influence of post fit and post length on fracture resistance. Int Endod J. 2009;42(1):47-53.
Torbjörner A, Fransson B. A literature review on the prosthetic treatment of structurally compromised teeth. Int J Prosthodont. 2004;17(3):369-76.
Dorriz H, Alikhasi M, Mirfazaelian A, Hooshmand T. Effect of ferrule and bonding on the compressive fracture resistance of post and core restorations. J Contemp Dent Pract. 2009;10(1):1-8.
Tang W, Wu Y, Smales RJ. Identifying and reducing risks for potential fractures in endodontically treated teeth. J Endod. 2010;36(4):609-17.
Belli S, Eraslan Ö, Eraslan O, Eskitaşcıoğlu G. Effect of restoration technique on stress distribution in roots with flared canals: an FEA study. J Adhes Dent. 2014;16(2):185-91.
Ma J, Miura H, Okada D, Yusa K. Photoelastic stress analysis of endodontically treated teeth restored with different post systems: normal and alveolar bone resorption cases. Dent Mater J. 2011;30(6):806-13.
