Hard and soft tissue shape variation and changes in Class II division 1 malocclusion during orthodontic treatment: a geometric morphometric analysis.

ABSTRACT:

Background

This study aims to determine the hard and soft tissue shape variation and its changes in Class II division 1 malocclusion before and after orthodontic treatment using Geometric Morphometric Analysis.

Methods

This retrospective study included 141 pre-treatment and near-end treatment lateral cephalometric radiographs of Class II division 1 malocclusion patients aged 16-40 years with a skeletal II pattern (ANB > 4^o). 32 landmarks in Cartesian coordinates were created and identified using MorphoJ software to establish a shape analysis.

Results

The vertical dimensions (hypodivergent to hyperdivergent facial profiles) showed the largest variation in the general shape of hard and soft tissue, followed by the anteroposterior dimensions (mild to severe sk

SUBMITTER: Chu CS 

PROVIDER: S-EPMC10680264 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature