内蒙古自治区蒙古族正常牙合人群上前牙临床牙冠长度及宽长比的研究  

A study on clinical crown length and width-length ratio of upper anterior teeth for the Mongolian race people with normal occlusion in Inner Mongolia Autonomous Region

作　　者：刘焱[1] 陈青宇 赵晓霞[3] 高翔[1] 高俊武[1] 王靖宇[2] LIU Yan;CHEN Qingyu;ZHAO Xiaoxia;GAO Xiang;GAO Junwu;WANG Jingyu(School of Stomatology,Baotou Medical College, Baotou 014060, China;Department of Stomatology, The First Affiliated Hospital of Baotou Medical College;Department of Neurology, The First Hospital of Hohhot)

机构地区：[1]内蒙古科技大学包头医学院口腔学院,内蒙古包头014040 [2]包头医学院第一附属医院口腔科 [3]呼和浩特市第一医院神经内科

出　　处：《包头医学院学报》2020年第2期18-21,共4页Journal of Baotou Medical College

基　　金：包头医学院科学研究基金资助(BYJJ-QWB 201703)。

摘　　要：目的:测量内蒙古自治区蒙古族正常牙合人群的上前牙临床牙冠长度(clinical crown length,CCL)和牙冠宽度-长度比(clinical crown width∶length ratio,CCW∶CCL),为其牙周、修复、种植及正畸治疗提供指导依据。方法:选取62例内蒙古自治区18~24岁蒙古族大学生为研究对象,均为未接受过正畸治疗的正常牙合,其中男性35例、女性27例。分别制取全口牙颌模型,用数字游标卡尺测量双侧上颌中切牙(U1)、侧切牙(U2)和尖牙(U3)的CCW及CCL,计算CCW/CCL,并进行统计学分析。结果:内蒙古自治区蒙古族正常牙合人群中,U1、U2、U3的CCL、CCW均为男性>女性(P<0.05),U1和U3的CCW∶CCL为男性<女性(P<0.05),U2的CCW∶CCL为男性>女性(P<0.05);U1、U2和U3的CCL均为左侧>右侧(P<0.05);不考虑性别时,CCL、CCW的牙位排序均为U1>U3>U2(P<0.05),而CCW∶CCL的牙位排序为U1>U2>U3(P<0.05)。结论:CCL和CCW/CCL在上前牙区存在左右侧、性别和牙位差异,本研究的测量结果可为内蒙古自治区蒙古族人群的上前牙区的美学修复治疗提供参考。Objective:To investigate the clinical crown length and width-length ratio of upper anterior teeth for the Mongolian race people with normal occlusion in Inner Mongolia Autonomous Region and summarize to provide guidance for periodontal,prosthetic,implant and orthodontic treatment.Methods:The data were derived from Mongolian College Students(ranged from 18 to 24 years old)with normal occlusion in Inner Mongolia Autonomous Region who met the inclusion criteria of non-accepted orthodontic treatment,including 35 males and 27 females.Dental casts were obtained from subjects and the values of the clinical crown length and width-length ratio of upper anterior teeth were measured by vernier caliper.All the datas were analyzed by statistic methods.Results:For Mongolian race people with normal occlusion in Inner Mongolia Autonomous Region,the CCL of males U1,U2 and U3 were 10.01,8.48 and 9.79 mm,respectively,and females were 9.64,8.18 and 9.33 mm.CCW/CCL were 0.86,0.86 and 0.81 mm in males,and 0.88,0.85,and 0.83 mm in females.The clinical crown lengths of U1,U2 and U3 between left and right sides presented significant differences(left>right,P<0.5mm).CCLs of clinical crown for homonym teeth presented gender differences(male>female,U1 and U3,P<0.01;U2,P<0.05).The tooth position of CCL was U1>U3>U2(P<0.01).Width-length ratios of U1,U2 and U3 for homonym teeth presented gender differences(U1 and U2,P<0.01;U3,P<0.05).There were gender differences in dental ranking,U1=U2>U3 for males and U1>U2>U3 for females.Conclusion:There were bilateral,gender and dental position differences for CCL and CCW/CCL in the upper anterior teeth.The results of this study can provide references for aesthetic prosthetic treatments of upper anterior teeth in Mongolian population in Inner Mongolia Autonomous Region.

关 键 词：正常牙合 临床牙冠长度 宽长比 蒙古族 

分 类 号：R78[医药卫生—口腔医学]