CAJ | 학술논문

目的:建立延边地区朝鲜族正常(牙合)成人头影测量Downs分析法的正常值,初步研究中国朝鲜族颅面结构的性别差异和地域特征.方法: 选择延边地区72名正常(牙合)朝鲜族成人拍摄X线头颅定位侧位片,采用Downs分析法进行测量,并将测量值与韩国汉城地区朝鲜族和中国东北地区汉族同年龄组成人的测量值进行比较、分析其地域特征.结果: 建立了中国延边地区朝鲜族正常(牙合)成人Downs分析法的正常值、标准差及多角形图；朝鲜族正常(牙合)成人颅面部硬组织结构存在性别差异,面角男性小于女性, Y轴角男性大于女性；下中切牙-平面角、下中切牙-下颌平面角以及上中切牙凸距均为男性大于女性（P<0.01）.与韩国正常(牙合)成人比较,面角小于韩国人,而Y轴角、平面角则大于韩国人；男性的颌突角及上中切牙突距也明显大于韩国男性（P<0.05）.与东北地区汉族正常成人比较,面角、上下牙槽座角大于汉族,下颌平面角、Y轴角、下中切牙-下颌平面角、下中切牙-(牙合)平面角、上下中切牙角均小于汉族（P<0.05）.结论:中国延边地区朝鲜族正常(牙合)成人牙颌颅面结构存在性别差异和地域特征.东北地区汉族、延边地区朝鲜族、韩国人的牙颌面特征存在明显的过渡性.
목적:건립연변지구조선족정상(아합)성인두영측량Downs분석법적정상치,초보연구중국조선족로면결구적성별차이화지역특정.방법: 선택연변지구72명정상(아합)조선족성인박섭X선두로정위측위편,채용Downs분석법진행측량,병장측량치여한국한성지구조선족화중국동북지구한족동년령조성인적측량치진행비교、분석기지역특정.결과: 건립료중국연변지구조선족정상(아합)성인Downs분석법적정상치、표준차급다각형도；조선족정상(아합)성인로면부경조직결구존재성별차이,면각남성소우녀성, Y축각남성대우녀성；하중절아-평면각、하중절아-하합평면각이급상중절아철거균위남성대우녀성（P<0.01）.여한국정상(아합)성인비교,면각소우한국인,이Y축각、평면각칙대우한국인；남성적합돌각급상중절아돌거야명현대우한국남성（P<0.05）.여동북지구한족정상성인비교,면각、상하아조좌각대우한족,하합평면각、Y축각、하중절아-하합평면각、하중절아-(아합)평면각、상하중절아각균소우한족（P<0.05）.결론:중국연변지구조선족정상(아합)성인아합로면결구존재성별차이화지역특정.동북지구한족、연변지구조선족、한국인적아합면특정존재명현적과도성.
Objective: To establish a cephalometric norms of Downs analysis for Korean population in China. Methods: 72 Korean adults in Yanbian with normal occlusion and harmonious face were selected. Lateral cephalometric radiographs were taken and analyzed with Downs analysis. The data was compared with the norms of the Korean in Seoul, Republic of Korea, which reported by Park. Results: Means, standard deviation of Downs polygon of our samples were presented. Differences between males and females were found in our samples: Facial angle in males group was smaller than that in females group. Angle of Yaix, L1 to mandibular plane, L1 to occlusal plane and U1 to AP plane in male group were larger than female group(P<0.05). Statistically significant differences were detected between our samples and Park's: Facial angle in Yanbian group was smaller than Soul group, while, Yaxis and occlusal plane was larger in Yanbian group. Angles of convexity of Yanbian males were larger than Soul males(P<0.05). Statistically significant differences were detected between our sample and Han group in Northeast China: Facial angle and AB-NP angle were larger than Han group. Angle of mandibular plane, angle of Yaix, L1 to mandibular plane, L1 to occlusal plane, angle of U1 to L1were smaller than Han group (P<0.05). Conclusion: Korean males in Yanbian district tend to have more convex profiles than females. Compared with Korean population in Seoul, Korean in Yanbian have more convex facial profile. Facial characteristics of Korean in Yanbian are between Korean population in Soul and Han population in Northeast China.