维吾尔族与汉族不同矢状骨面型人群前牙冠根比研究  

Study on Anterior Crown Root Ratio of Uighur and Han People with Different Sagittal Bone Surface Types

作　　者：徐金瑞 戴永刚[2] 王梓涵 石晓宇 杨洁 朱婉瑜 聂晶[1,3] XU Jinrui;DAI Yonggang;WANG Zihan;SHI Xiaoyu;YANG Jie;ZHU Wanyu;NIE Jing(Department of Orthodontics,Stomatology Hospital,First Affiliated Hospital of Xinjiang Medical University,Urumqi 830054,Xinjiang,China;Department of Oral Imaging,Stomatology Hospital,First Affiliated Hospital of Xinjiang Medical University,Urumqi 830054,Xinjiang,China;Clinical Research Center of Shanxi Province for Dental and Maxillofacial Diseases,College of Stomatology,Xi'an Jiaotong University,Xi'an 710004,Shaanxi,China)

机构地区：[1]新疆医科大学第一附属医院(附属口腔医院)口腔正畸科,新疆乌鲁木齐830054 [2]新疆医科大学第一附属医院(附属口腔医院)口腔影像科,新疆乌鲁木齐830054 [3]西安交通大学口腔医院陕西省牙颌疾病临床医学研究中心,陕西西安710004

出　　处：《中国美容医学》2024年第7期53-59,共7页Chinese Journal of Aesthetic Medicine

基　　金：陕西省牙颌疾病临床医学研究中心开放课题(名称:新疆维吾尔、汉族不同矢状骨面型前牙冠根比及牙槽骨厚度的研究;编号:2021YHJB09)。

摘　　要：目的:研究维吾尔族与汉族不同矢状骨面型人群前牙冠根比。方法:选取符合纳入标准的236例CBCT影像资料,按照矢状骨面型分为4组。A组:骨性Ⅰ类(汉族30例,维吾尔族30例),B组:骨性Ⅱ类1分类(汉族30例,维吾尔族30例);C组:骨性Ⅱ类2分类(汉族30例,维吾尔族28例);D组:骨性Ⅲ类(汉族30例,维吾尔族28例)。测量上下颌前牙根长、冠长,计算冠根比,并进行统计学分析。结果:①B组中,维吾尔族与汉族上颌切牙、下颌尖牙冠根比差异有统计学意义(P<0.05);C组中,维吾尔族与汉族下颌侧切牙冠根比差异有统计学意义(P<0.05)。②在汉族四组比较中,D组上下颌前牙冠根比大于A、B组,C组上颌前牙冠根比大于B组,C组上颌切牙冠根比大于A组(P<0.05);在维吾尔族四组比较中,D组上下颌前牙冠根比大于A、B组,C组上颌前牙冠根比大于B组,C组上颌切牙冠根比大于A组(P<0.05)。结论:维吾尔族与汉族在骨性Ⅱ类1分类上颌切牙、下颌尖牙和骨性Ⅱ类2分类的下颌侧切牙冠根比具有差异性,种族是影响上下颌前牙冠根比的一个重要因素。维吾尔族、汉族的骨性Ⅲ类及骨性Ⅱ类2分类冠根比相对较大,正畸医生应根据冠根比设计矫治方案,并在矫治过程中密切关注冠根比变化。Objective To study the characteristics of crown-root ratio of upper and lower anterior teeth of Uighur and Han patients with different sagittal skeletal types.Methods A total of 236 patients with Cone beam CT(CBCT)imaging data meeting the inclusion criteria were selected and divided into 4 groups according to sagittal skeletal plane type.Group A:skeletal classⅠ(Han 30 cases,Uighur 30 cases),Group B:skeletal ClassⅡ1(Han 30 cases,Uighur 30 cases),Group C:skeletal ClassⅡ2(Han 30 cases,Uighur 28 cases),Group D:skeletal ClassⅢ(Han 30 cases,Uighur 28 cases).The length of root and crown of upper and lower anterior teeth were measured with CBCT,and the crown-root ratio was calculated,and statistical analysis was carried out.Results①There were statistically different ratios of maxillary incisors and mandibular canines in group B,and mandibular lateral incisors in group C between Uighur and Han people.②Both in Uighur and Han nationality,the crownroot ratio of upper and lower anterior teeth in group D was higher than that in group A and group B(P<0.05),the crownroot ratio of upper anterior teeth in group C was higher than that in group B(P<0.05),and the crown-root ratio of upper incisor teeth in group C was higher than that in group A(P<0.05).Conclusion There are statistical difference ratio of maxillary incisors and mandibular canines in skeletal ClassⅡ1,and mandibular lateral incisors in skeletal ClassⅡ2 between Uighur and Han people.Race is an important factor affecting the crown-root ratio of upper and lower anterior teeth.Both in Uighur and Han nationality,the crown-root ratio of skeletal ClassⅢand ClassⅡ2 are relatively high.The crown-root ratio should be considered in orthodontic design and the correction process.

关 键 词：冠根比 错[牙合]畸形 锥形束CT 前牙 颅面形态 

分 类 号：R783.5[医药卫生—口腔医学]