后颌畸形咀嚼肌的三维分析

IF 0.5 Q4 DENTISTRY, ORAL SURGERY & MEDICINE
Kanako Imamura , Masahiko Terajima , Akihiko Nakashima , Ichiro Takahashi
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引用次数: 1

摘要

目的利用三维(3-D) CT成像技术,可以从任意角度观察颌面部骨骼和肌肉,同时对骨骼和肌肉进行分析。然而,目前还没有研究对颌骨畸形的肌肉进行三维分析。摘要本研究旨在探讨咀嚼肌形态与颅面骨骼的关系。方法选取8名日本正常成年女性和10名成年女性侧长症患者作为研究对象。重建其颅面骨骼、咬肌、翼状内侧肌和翼状外侧肌的三维CT图像。然后,测量每个受试者的6个骨骼变量和7个肌肉变量。结果正常成人的乳突肌体积与正常成人的乳突肌体积呈显著正相关,而下颌后颌畸形患者的乳突肌体积与正常成人的乳突肌体积无显著正相关。肌肉变量与骨骼变量在正常受试者中呈显著正相关,但在侧裂症患者中相关性不显著。结论下颌骨后裂症患者咀嚼肌和肌肉与骨骼的平衡出现了紊乱。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A three-dimensional analysis of masticatory muscles in laterognathism

Purpose

By using three-dimensional (3-D) CT imaging, the maxillofacial bones and muscles can be observed from any desired angles and analyzed the bone and muscles simultaneously. However, no studies have investigated the three dimensional analysis of muscles in jaw deformity. The purpose of this study was to examine the relationship between the morphology of the masticatory muscles and the craniofacial skeleton in the patients with facial asynmetry.

Methods

Eight Japanese normal female adults and 10 female adult patients with laterognqthism were participated in this study. The 3-D CT images of their craniofacial skeleton and masseter, medial pterygoid and lateral pterygoid muscles were recon-structed. Then, 6 skeletal and 7 muscle variables were measured for each subject.

Results

Significant positive correlations were found among the volume of the masti-catory muscles in the normal adults, but not found in patients with mandibular laterognathism. The muscular variables showed significant positive correlations with skeletal variables in normal subjects, but few significant correlations were found in the patients with laterognathism.

Conclusions

This study suggestted that the balance between masticatory muscles and the balance between muscles and skeleton collapsed in the patients with mandibu-lar laterognathism.

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来源期刊
Orthodontic Waves
Orthodontic Waves DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
0.40
自引率
0.00%
发文量
0
期刊介绍: Orthodontic Waves is the official publication of the Japanese Orthodontic Society. The aim of this journal is to foster the advancement of orthodontic research and practice. The journal seeks to publish original articles (i) definitive reports of wide interest to the orthodontic community, (ii) Case Reports and (iii) Short Communications. Research papers stand on the scientific basis of orthodontics. Clinical topics covered include all techniques and approaches to treatment planning. All submissions are subject to peer review.
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