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Related Experiment Video

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A Finite Element Approach for Locating the Center of Resistance of Maxillary Teeth
10:50

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Published on: April 8, 2020

Bodily labializing lateral incisors: 3D analysis using finite element method.

Allahyar Geramy1

  • 1Orthodontics Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.

Acta Odontologica Scandinavica
|July 13, 2012
PubMed
Summary
This summary is machine-generated.

This study presents a novel orthodontic method for labializing palatally impacted upper lateral incisors. A specific hook length on the bracket enables controlled bodily movement, correcting impaction effectively.

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Area of Science:

  • Orthodontics
  • Biomechanical Engineering
  • Dental Modeling

Background:

  • Bodily labializing upper lateral incisors is a complex orthodontic challenge.
  • Palatally erupted lateral incisors require specialized treatment approaches.

Purpose of the Study:

  • To introduce and analyze a novel method for labializing palatally erupted lateral incisors.
  • To determine the optimal hook design for achieving bodily movement.

Main Methods:

  • Developed five 3D finite element models of the maxillary anterior segment.
  • Simulated orthodontic forces using a 0.016 wire and a custom hook design on the lateral incisor bracket.
  • Varied hook and bypassed wire lengths (8, 10, 11.5, 9.5, and 9.45 mm) to assess tooth displacement.

Main Results:

  • A hook length of 8 mm resulted in tipping; longer hooks (9.5 mm) produced root movement.
  • A hook length of 9.45 mm, combined with a specific bypassed wire length, achieved significant bodily movement.
  • The method demonstrated predictable tooth displacement based on hook configuration.

Conclusions:

  • A specific hook length is crucial for achieving bodily movement of palatally impacted lateral incisors.
  • This method offers a viable approach for correcting lateral incisor impactions with potential for intrusive components.