Nonlinear evaluation of two different posts

Authors

  • Patricia Lopera-Builes Universidad de Antioquia
  • Federico Latorre-Correa Universidad de Antioquia
  • Junes Abdul Villaraga-Ossa Universidad de Antioquia

Keywords:

Cast post, Prefabricated post, Stress distribution, Finite elements method

Abstract


Introduction: endodontically treated teeth that will be restored with crowns and which have lost part of their dental structure need a cast post or a prefabricated post to improve final restoration retention and therefore to be able to regain their functionality and aesthetics. The literature suggests when to use a cast or prefabricated post, but it is not conclusive in terms of which one has a better stress distribution, which post material or shape is better, or whether their modulus of elasticity is related to load distribution along the tooth’s axis. Methods: by using Solid Works, two models of a maxillary central incisor with all its supporting structures were made, one with a cast post and another one with a prefabricated post plus an all-ceramic crown. By means of finite element analysis both teeth were subjected to loads of 200, 400, 600 and 800 N up to reaching their plasticity. Results: at 200 and 400 N, both posts showed different stress distribution patterns without altering the restora ion or the tooth’s root. Conclusions: at normal masticatory loads, both posts are likely to restore a tooth that needs addition of a post.

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Author Biographies

Patricia Lopera-Builes, Universidad de Antioquia

Dentist, Specialist in Adult Comprehensive Dentistry with Emphasis in Prosthodontics, School of Dentistry, Universidad de Antioquia

Federico Latorre-Correa, Universidad de Antioquia

Dentist, Specialist in Adult Comprehensive Dentistry with Emphasis in Prosthodontics, Associate Professor, School of Dentistry, Universidad de Antioquia

Junes Abdul Villaraga-Ossa, Universidad de Antioquia

Mechanical Engineer, Universidad Nacional de Colombia at Medellín, Msc Mechanical Engineering, Universidad Simón Bolívar, Caracas-Venezuela. Associate Professor, School of Mechanical Engineering, Universidad de Antioquia.

Published

2012-06-20

How to Cite

Lopera-Builes, P., Latorre-Correa, F., & Villaraga-Ossa, J. A. (2012). Nonlinear evaluation of two different posts. Revista Facultad De Odontología Universidad De Antioquia, 23(2), 240–255. Retrieved from https://revistas.udea.edu.co/index.php/odont/article/view/7904

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