Validated Finite Element Models of Premolars: A Scoping Review

Materials

Faleh Tamimi¹  Raphaël Richert²  Maxime Ducret²  Jean-Christophe Farges²  Naim Naouar³  Philippe Boisse³ 

[1] Faculty of Dentistry, McGill University, QC H3A 2T5 Montreal, Canada;Hospices Civils de Lyon, PAM Odontologie, 69007 Lyon, France;Laboratoire de Mécanique des Contacts et structures, UMR 5259 CNRS/INSA Lyon, 69100 Lyon, France;

关键词: systematic review;    finite element analysis;    premolar;    operative dentistry;    prosthodontics;   

DOI  :  10.3390/ma13153280

来源: DOAJ

【 摘 要 】

Finite element (FE) models are widely used to investigate the biomechanics of reconstructed premolars. However, parameter identification is a complex step because experimental validation cannot always be conducted. The aim of this study was to collect the experimentally validated FE models of premolars, extract their parameters, and discuss trends. A systematic review was performed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Records were identified in three electronic databases (MEDLINE [PubMed], Scopus, The Cochrane Library) by two independent reviewers. Twenty-seven parameters dealing with failure criteria, model construction, material laws, boundary conditions, and model validation were extracted from the included articles. From 1306 records, 214 were selected for eligibility and entirely read. Among them, 19 studies were included. A heterogeneity was observed for several parameters associated with failure criteria and model construction. Elasticity, linearity, and isotropy were more often chosen for dental and periodontal tissues with a Young’s modulus mostly set at 18–18.6 GPa for dentine. Loading was mainly simulated by an axial force, and FE models were mostly validated by in vitro tests evaluating tooth strains, but different conditions about experiment type, sample size, and tooth status (intact or restored) were reported. In conclusion, material laws identified herein could be applied to future premolar FE models. However, further investigations such as sensitivity analysis are required for several parameters to clarify their indication.

【 授权许可】

Unknown