The Carabelli's traits on permanent maxillary molars in 803 Han Chinese college students
10.13591/j.cnki.kqyx.2024.08.006
- VernacularTitle:803名汉族大学生上颌恒磨牙卡氏尖的观测与分析
- Author:
Zichao ZHOU
1
;
Daorui WANG
;
Qianxia ZHANG
;
Yidan ZHANG
;
Aiyun CHUAN
;
Jianing LI
;
Wenkai JIANG
;
Shengchao WANG
Author Information
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)
- Keywords:
cusp of Carabelli;
Carabelli's trait;
dental non-metric trait;
dental anthropology;
dental anatomy
- From:
STOMATOLOGY
2024;44(8):586-589
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the Carabelli's 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 Carabelli's 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.Kendall's tau-b correlation analy-ses were performed for the correlation between bilateral antimeric molars.Results The frequencies of Carabelli's 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 Carabelli's 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.
