摘要
目的:评估上海地区成人男女冠根比是否存在着差异。方法:收集本院拔除的离体恒牙1400颗,患者年龄25～35岁,男女各700颗。用游标卡尺精确测量牙根长度、牙冠长度后计算冠根比,并应用SPSS 17软件t检验进行统计学分析。结果:研究发现,男性除上颌中切牙牙冠长度小于女性外,其余恒牙牙冠及牙根长度均大于女性。结论:上海成年男女上、下颌牙冠根比存在差异。
Objective：The aim of this study was to assess if there was a significant difference of the crown to root ratio between male and female permanent teeth in Chinese people in Shanghai.Methods：1 400 extracted teeth were collected between 25-35 and the crown length（CL） and root length（RT） of permanent teeth were measured by a precise caliper. There were 700 male and 700 female extracted teeth.Statistical analyses were performed with the SPSS 17 software by the Student＇s t-test method.Results：The mean crown length of permanent teeth of male was found to be larger than female except for the maxillary central incisor and the mean root length of male was found to be comparatively larger than female. Conclusion：There was a significant difference in RT/CL between male and female maxillary teeth and in these mandibular teeth.The RT/CL ratio of male tends to be larger than female in the Shanghai population.
出处
《口腔颌面外科杂志》
CAS
2011年第1期11-14,共4页
Journal of Oral and Maxillofacial Surgery
关键词
冠根比
恒牙
男
女
root to crown ratio
permanent teeth
male
female
