Congenital

Cranio-Maxillo-Facial

A 3-dimensional method for analyzing the morphology of patients with maxillofacial deformities

Terajima M, Nakasima A, Aoki Y, et al (Kyushu Univ, Fukuoka, Japan; Shibaura Inst of Technology Univ, Saitama, Japan) Am J Orthod Dentofacial Orthop 136:857-867, 2009^§

Abstract

Introduction

Traditionally, cephalograms have been used to evaluate a patient’s maxillofacial skeleton and facial soft-tissue morphology. However, magnification and distortion of the cephalograms make detailed morphologic analysis difficult in patients with complex deformities. The purpose of this article was to introduce a new method for visualizing deformation and deviation of the maxillofacial skeleton and facial soft tissues.

Methods

Standard 3-dimensional Japanese head models were sized to match the sella-to-nasion distance obtained from 2 patients’ (1 man, 1 woman) maxillofacial skeletal images. Then, the scaled standard model was superimposed on each patient’s 3-dimensional computed tomography image.

Results

This system provided clear shape information independent of size and facilitated the visualization of shape variations in maxillofacial skeletal and facial soft-tissue morphology.

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