803名汉族大学生上颌恒磨牙卡氏尖的观测与分析  

The Carabellis traits on permanent maxillary molars in 803 Han Chinese college students

作　　者：周子超 王道睿 张倩霞 张轶丹 传爱云 李嘉宁 蒋文凯 王胜朝 ZHOU Zichao;WANG Daorui;ZHANG Qianxia;ZHANG Yidan;CHUAN Aiyun;LI Jianing;JIANG Wenkai;WANG Shengchao(State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration,National Clinical Research Center for Oral Diseases,Shaanxi Key Laboratory of Stomatology,Department of Operative Dentistry and Endodontics,School of Stomatology,The Fourth Military Medical University,Xi'an 710032,China)

机构地区：[1]口颌系统重建与再生全国重点实验室,国家口腔疾病临床医学研究中心,陕西省口腔医学重点实验室,第四军医大学口腔医院牙体牙髓病科,陕西西安710032

出　　处：《口腔医学》2024年第8期586-589,共4页Stomatology

基　　金：国家科技基础资源调查专项(2018FY101002);国家自然科学基金面上项目(82270973);空军军医大学科研项目(2021KYBJ01)。

摘　　要：目的观测一组汉族大学生人群上颌恒磨牙卡氏尖的表达情况。方法根据美国亚利桑那州立大学牙齿人类学系统(Arizona State University Dental Anthropology System,ASUDAS)的卡氏尖分级标准,对803名汉族大学生的口内照和石膏模型进行观测和分析。卡氏尖出现率的性别和牙位差异采用卡方检验分析,表达强度的双侧相关性采用Kendall相关性检验分析。结果卡氏尖的人群出现率在上颌第一、二恒磨牙分别为37.61%、3.99%,上颌第一恒磨牙显著高于上颌第二恒磨牙(P<0.01);男性上颌第一、二恒磨牙卡氏尖的出现率分别为46.73%、6.30%,女性上颌第一、二恒磨牙卡氏尖的出现率分别为27.95%、1.54%,男性显著高于女性(P<0.01);阳性表达以低强度表达(1~4级)为主,在上颌第一、二恒磨牙中分别占比67.37%和59.52%;卡氏尖的表达在上颌第一、二恒磨牙均具有一定的双侧相关性(tau⁃b=0.756,P<0.01;tau⁃b=0.477,P<0.01)。结论卡氏尖在该组汉族人群中主要发生于上颌第一恒磨牙,以低强度表达为主,掌握我国人群中卡氏尖的表达情况有重要的人类学和临床指导意义。Objective To investigate the Carabellis traits on permanent maxillary molars in Han Chinese college students.Methods Intraoral photos and plaster models from 803 Han Chinese college students were observed and the Carabellis traits on permanent maxillary molars were categorized by the Arizona State University Dental Anthropology System.Chi⁃square tests were performed for the comparison of the differences between male and female,permanent maxillary first and second molars.Kendalls tau⁃b correlation analy⁃ses were performed for the correlation between bilateral antimeric molars.Results The frequencies of Carabellis traits on permanent maxillary first and second molars were 37.61%and 3.99%respectively,46.73%and 6.30%in males,27.95%and 1.54%in females,which were statistically significant between permanent maxillary first and second molars(P<0.01),male and female(P<0.01).In the positive expression,the low⁃grade expression(ASUDAS 1-4)was predominant and accounted for 67.37%and 59.52%on the perma⁃nent maxillary first and second molars.The correlation between bilateral antimeric teeth were statistically significant on permanent max⁃illary first molars(tau⁃b=0.756,P<0.01)and second molars(tau⁃b=0.477,P<0.01).Conclusion The Carabellis traits on perma⁃nent maxillary molars in Han Chinese college students mostly occur on permanent maxillary first molars with low⁃grade expression,and understanding this has great anthropological and clinical significance.

关 键 词：卡氏尖 卡氏特征 牙齿非测量特征 牙齿人类学 牙体解剖 

分 类 号：R322.41[医药卫生—人体解剖和组织胚胎学]