Prevalence and Three-Dimensional Craniofacial Characteristics of Microtia in Orthodontic Patients: A Retrospective CBCT Analysis

• 발행기관: 대한구순구개열학회
• 저자명: Hannah Jeong Insan Jang Dong-Soon Choi
• 간행물 정보: 『대한구순구개열학회지』제28권 제1호, 3~11쪽, 전체 9쪽
• 주제분류: 의약학 > 일반외과학
• 파일형태: PDF
• 발행일자: 2025.06.30

국문 초록

Objective: This study aimed to investigate the prevalence of microtia among orthodontic patients and to evaluate the three-dimensional (3D) craniofacial skeletal characteristics of these patients using cone beam computed tomography (CBCT) images. Materials and Methods: Frontal facial photographs of 3,425 orthodontic patients were retrospectively examined, and 34 patients with microtia were identified. CBCT images were analyzed to assess craniofacial asymmetries in the transverse, anteroposterior, and vertical dimensions. Tooth sizes between the microtic and non-microtic sides were also compared. Results: The prevalence of microtia among the orthodontic patients was found to be 1.0%, with most cases classified as Grade I (79.4%) and a higher incidence on the left side (76.5%). Significant anteroposterior and vertical skeletal asymmetries were observed, with a tendency for the menton to deviate towards the microtic side, which may suggest that the maxilla and mandible could be smaller in dimensions in microtic side than non-microtic side. No significant differences were found in tooth sizes between the microtic and non-microtic sides. Conclusion: Approximately 1% of orthodontic patients presented with microtia, which is associated with significant craniofacial asymmetry in three dimensions.

목차

Introduction

Materials and Methods

Results

Discussion

Conclusions

키워드

CT Craniofacial anomalies Facial asymmetry Microtia