CAJ | 학술논문

目的：测量上颌前牙唇侧黏膜厚度，分析其与性别及体质量指数（BMI）的相关性。方法：选择健康汉族青年男45人，女55人为研究对象，推开唇颊组织，用锥形束CT对颌面部扫描并三维重建，测量上颌前牙唇侧龈缘至牙槽嵴顶牙龈及牙槽嵴顶至其根方3 mm范围的黏膜厚度和龈缘至牙槽嵴顶的牙龈宽度。分析黏膜厚度的性别组间差异及与BMI的相关性。结果：受试者总体在牙长轴纵切面上，中切牙、侧切牙和尖牙唇侧龈缘至牙槽嵴顶的黏膜厚度（mm）分别为1．32±0．20、1．10±0．24、1．21±0．19；牙槽嵴顶至其根方3 mm范围的黏膜厚度（mm）分别为0．69±0．17、0．52±0．16、0．59±0．15；牙龈宽度（mm）分别为3．18±0．45、3．00±0．44和3．07±0．40。上颌前牙唇侧牙槽嵴顶至其根方3 mm范围的黏膜厚度男性大于女性（P＜0．05），与黏膜厚度BMI显著正相关（r＝0．376，P＜0．05）。结论：①上颌前牙区唇侧牙龈厚度呈冠根向递增趋势，唇侧牙龈厚度大于牙槽黏膜厚度；②男性牙槽黏膜厚度显著大于女性；③牙槽黏膜厚度与体质量指数显著正相关。
목적：측량상합전아진측점막후도，분석기여성별급체질량지수（BMI）적상관성。방법：선택건강한족청년남45인，녀55인위연구대상，추개진협조직，용추형속CT대합면부소묘병삼유중건，측량상합전아진측간연지아조척정아간급아조척정지기근방3 mm범위적점막후도화간연지아조척정적아간관도。분석점막후도적성별조간차이급여BMI적상관성。결과：수시자총체재아장축종절면상，중절아、측절아화첨아진측간연지아조척정적점막후도（mm）분별위1．32±0．20、1．10±0．24、1．21±0．19；아조척정지기근방3 mm범위적점막후도（mm）분별위0．69±0．17、0．52±0．16、0．59±0．15；아간관도（mm）분별위3．18±0．45、3．00±0．44화3．07±0．40。상합전아진측아조척정지기근방3 mm범위적점막후도남성대우녀성（P＜0．05），여점막후도BMI현저정상관（r＝0．376，P＜0．05）。결론：①상합전아구진측아간후도정관근향체증추세，진측아간후도대우아조점막후도；②남성아조점막후도현저대우녀성；③아조점막후도여체질량지수현저정상관。
AIM:To measure the thickness of labial gingiva and mucosa at maxillary anterior teeth by cone-beam CT and to analyze its association with gender and body mass index (BMI).METHODS:45 male and 55 fe-male youths of Han nationality were included.At the time of cone-beam CT scanning,a mouth opening device was used to retract soft tissues away from the teeth and gingiva.The thickness of labial gingiva and mucosa was measured at six different leves on each maxillary anterior tooth from gingival margin to crest of alveolar ridge and from the alveolar crest ridge to apical 3 mm respectively.The mucosal width was measured from gingival margin to the crest of alveolar ridge.T-test was used to examine the gender differences.Pearson correlation analysis was used to examine the correla-tions between mucosal thickness and BMI.RESULTS:As total,the thickness(mm)of gingiva at central incisor,lat-eral incisor and canine was 1.32 ±0.20,1.10 ±0.24 and 1.21 ±0.19 respectively;the thickness(mm)of mucosa of the teeth was 0.69 ±0.17,0.52 ±0.16 and 0.59 ±0.15;the mucosal widths(mm)of alveolar ridge of the teeth was 3.18 ±0.45,3.00 ±0.44 and 3.07 ±0.40,respectivelyr.Males had thicker mucosa than females(P<0.05),and the thickness was positively associated with BMI (r=0.376,P<0.05).CONCLUSION:The thickness of labial gingiva increases from crown to root direction.Gingiva was thicker than alveolar mucosa.Males have thicker labial alveolar mu-cosa than females.The thickness of alveolar mucosa was positively associated with BMI.