CAJ | 학술논문

目的：利用锥形束 CT（CBCT）技术研究安氏Ⅱ类亚类成人患者的牙颌不对称性，为临床治疗提供参考。方法：对30例安氏Ⅱ类亚类成人患者和30例正常(牙合)上下牙列和下颌骨进行测量，比较两者之间的差异。结果：安氏Ⅱ类亚类成人患者常伴有中线的偏斜，且多发生在下颌；其Ⅱ类关系的形成主要与Ⅱ类亚类关系侧下颌磨牙位置偏远中有关。结论：安氏Ⅱ类亚类错(牙合)成人患者主要存在的是牙性的不对称，其次也有少量骨性的不对称。
목적：이용추형속 CT（CBCT）기술연구안씨Ⅱ류아류성인환자적아합불대칭성，위림상치료제공삼고。방법：대30례안씨Ⅱ류아류성인환자화30례정상(아합)상하아렬화하합골진행측량，비교량자지간적차이。결과：안씨Ⅱ류아류성인환자상반유중선적편사，차다발생재하합；기Ⅱ류관계적형성주요여Ⅱ류아류관계측하합마아위치편원중유관。결론：안씨Ⅱ류아류착(아합)성인환자주요존재적시아성적불대칭，기차야유소량골성적불대칭。
Objective:To analyze the dental and mandibular asymmetry of adults with Class Ⅱ subdivision malocclusion.Methods:The jaw bones of 30 adults with Class Ⅱ subdivision malocclusion(case group)and 30 with normal-occlusion(control group)were scanned by CBCT.Linear and angular comparison was conducted between the two groups.Results:Dental midline deviation was ob-served in case group,mostly in mandibular arch (60%).The development of Class Ⅱ molar relationship correlated mainly to distally positioned mandibular molar on Class Ⅱ side.Conclusion:In the adults with Class Ⅱ subdvision malocclusion odontogenic asymme-try is the major factor,bony asymmetry is the miner.