Three-dimensional finite element analysis of stress in the bending root of maxillary first molar
Peng Hui
Zhang Ying
Wang Hong-yan
Abstract： BACKGROUND:The stress distribution in the periodontal ligament of bending root can provide reference for the size and manner of force in orthodontic treatment. On this account, it can optimize the design of orthodontic force. OBJECTIVE:To analyze the stress distribution of root and periodontal ligament in the bending roots of the <br> maxil ary first molar under different orthodontic forces. <br> METHODS:The maxil ary first molars with normal roots and bending roots were selected, and then the finite element models of maxil ary first molars and periodontal ligaments were established through CT scan and <br> Workbench 11.0 finite element analysis software. The models were loaded with six different methods to analyze the stress distribution. <br> RESULTS AND CONCLUSION:The stress distribution of bending root was mainly concentrated in the tooth <br> neck, fol owed by the apex. During the overal tooth movement, the stress was smal est on the root, periodontal ligament and alveolar bone. Correction of bending roots needs more accurate positioning and traction.
Keywords：tissue constructionoral tissue constructionoral finite element analysismaxil aryfirst molarbending rootbiological tissuestressbiomechanicsperiodontal ligament
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 5949-5956 )