Rotation axis of the maxillary molar and maximum tooth movement according to force direction

Authors

  • Carla Scanavini Croci Universidade Estadual de Campinas
  • Paulo Henrique Ferreira Caria Universidade Estadual de Campinas

DOI:

https://doi.org/10.20396/bjos.v14i2.8640827

Keywords:

Finite element analysis, Tooth movement, Biomechanical phenomena

Abstract

Aim: To evaluate the correlation between the maxillary molar rotation center and the direction of the maximum tooth movement according to the force direction using three-dimensional finite element analysis (3D-FEA). Methods: Computed tomography of a human tooth was used to build a finite element model, which comprised the cancellous and cortical bones, the periodontal ligament and the tooth. After applying lateral and posterior boundary conditions, a 1 N force was applied to the mesial and lingual faces of the maxillary molar to simulate buccal and distal tipping forces on the tooth. Results: The initial displacement of the maxillary first molar was greater for distal tipping than for buccal tipping. The rotation axis for distal tipping in this simulation was located on the furcation of the first molar. For buccal tipping this axis was on the cervical and middle third of the buccal roots of the maxillary first molar. Conclusions: The applied movement interferes in molars Cres location. Higher molar tipping is expected when distal movement is applied rather than buccal movement thanks to the close distance between Cres and location of the force applied to this movement

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Author Biographies

Carla Scanavini Croci, Universidade Estadual de Campinas

Universidade Estadual de Campinas - UNICAMP , da Faculdade de Odontologia de Piracicaba , Departamento de Morfologia

Paulo Henrique Ferreira Caria, Universidade Estadual de Campinas

Universidade Estadual de Campinas - UNICAMP , da Faculdade de Odontologia de Piracicaba , Departamento de Morfologia

Published

2015-07-01

How to Cite

1.
Croci CS, Caria PHF. Rotation axis of the maxillary molar and maximum tooth movement according to force direction. Braz. J. Oral Sci. [Internet]. 2015 Jul. 1 [cited 2022 Nov. 30];14(2):130-4. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640827

Issue

Section

Article

Most read articles by the same author(s)