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The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
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A Finite Element Approach for Locating the Center of Resistance of Maxillary Teeth
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Validated Finite Element Models of Premolars: A Scoping Review.

Raphaël Richert1,2,3, Jean-Christophe Farges1,2,4, Faleh Tamimi5,6

  • 1Hospices Civils de Lyon, PAM Odontologie, 69007 Lyon, France.

Materials (Basel, Switzerland)
|July 29, 2020
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Summary

This study reviews finite element (FE) models for premolar biomechanics, identifying common parameters and validation methods. Findings can guide future FE model development for dental research.

Keywords:
finite element analysisoperative dentistrypremolarprosthodonticssystematic review

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Area of Science:

  • Biomechanics
  • Dental Engineering
  • Computational Modeling

Background:

  • Finite element (FE) models are crucial for studying reconstructed premolar biomechanics.
  • Parameter identification in FE models is challenging due to limited experimental validation.
  • A systematic review is needed to consolidate existing FE model parameters and validation trends.

Purpose of the Study:

  • To systematically collect and analyze experimentally validated FE models of premolars.
  • To extract key parameters used in these models, including material properties, boundary conditions, and failure criteria.
  • To discuss observed trends and heterogeneity in parameter selection and model validation.

Main Methods:

  • A systematic literature review was conducted following PRISMA guidelines.
  • Three databases (PubMed, Scopus, Cochrane Library) were searched by two independent reviewers.
  • Twenty-seven parameters from 19 included studies were extracted and analyzed.

Main Results:

  • Heterogeneity was noted in failure criteria and model construction parameters.
  • Dental and periodontal tissues were often modeled as elastic, linear, and isotropic, with dentin's Young's modulus around 18-18.6 GPa.
  • Axial loading was common, and in vitro tests assessing tooth strain were primary validation methods, though experimental conditions varied.

Conclusions:

  • Identified material laws can inform future premolar FE models.
  • Further research, including sensitivity analyses, is necessary to refine parameter selection.
  • Standardization of validation conditions would enhance the reliability of FE models in dental research.