An expansion to the Nagerl's theory of proportionality in reduced alveolar bone height models: a 3D finite element analysis.

ABSTRACT:

Introduction

Orthodontic tooth movement is a basic theme in an orthodontic treatment. According to Nägerl, A nearer force application to the center of resistance will bring a farther center of rotation to the center of resistance. The main goal of this study was to evaluate this theory of proportionality by Finite element method (FEM) and find out its applicability in a bone loss situation.

Materials and methods

Three 3D FEM of an upper central incisor were designed in Solidworks 2016, the first one with a healthy bone height (model 1), with 3 mm of bone loss (model 2) and with 4.5 mm of bone loss (model 3). An 0.5 N force was applied in different predefined locations on the labial surface of the crown in model 2. This was 0.2 N for the model 3. The exact location of the cen

SUBMITTER: Geramy A 

PROVIDER: S-EPMC9526930 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature