{"title":"后颌畸形咀嚼肌的三维分析","authors":"Kanako Imamura , Masahiko Terajima , Akihiko Nakashima , Ichiro Takahashi","doi":"10.1016/j.odw.2019.09.010","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><p><span>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<span>. The purpose of this study was to examine the relationship between the morphology of the masticatory muscles and the craniofacial </span></span>skeleton in the patients with facial asynmetry.</p></div><div><h3>Methods</h3><p>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.</p></div><div><h3>Results</h3><p>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.</p></div><div><h3>Conclusions</h3><p>This study suggestted that the balance between masticatory muscles and the balance between muscles and skeleton collapsed in the patients with mandibu-lar laterognathism.</p></div>","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"78 4","pages":"Pages 143-150"},"PeriodicalIF":0.5000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.odw.2019.09.010","citationCount":"1","resultStr":"{\"title\":\"A three-dimensional analysis of masticatory muscles in laterognathism\",\"authors\":\"Kanako Imamura , Masahiko Terajima , Akihiko Nakashima , Ichiro Takahashi\",\"doi\":\"10.1016/j.odw.2019.09.010\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Purpose</h3><p><span>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<span>. The purpose of this study was to examine the relationship between the morphology of the masticatory muscles and the craniofacial </span></span>skeleton in the patients with facial asynmetry.</p></div><div><h3>Methods</h3><p>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.</p></div><div><h3>Results</h3><p>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.</p></div><div><h3>Conclusions</h3><p>This study suggestted that the balance between masticatory muscles and the balance between muscles and skeleton collapsed in the patients with mandibu-lar laterognathism.</p></div>\",\"PeriodicalId\":43169,\"journal\":{\"name\":\"Orthodontic Waves\",\"volume\":\"78 4\",\"pages\":\"Pages 143-150\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2019-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.odw.2019.09.010\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Orthodontic Waves\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1344024119300056\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"DENTISTRY, ORAL SURGERY & MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Orthodontic Waves","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1344024119300056","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
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.
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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