摘要
目的应用口腔全景曲面体层片研究乳尖牙双根的发生率和特征。方法收集3~9岁儿童的口腔全景曲面体层片,共纳入100976张,观察记录乳尖牙双根的发生情况和分布规律。应用SPSS 25.0统计软件分析所得的数据。查阅乳尖牙双根的报道文献,记录患者资料。结果乳尖牙双根的发生率为0.37‰(37/100976),其中男性发生率为0.59‰(32/54276),女性发生率为0.12‰(5/46700),男女间差异有统计学意义(χ^(2)=15.955,P=0.000)。37例儿童的乳尖牙双根发生数目以1~2颗为主,其中1颗者11例(29.73%),2颗者18例(48.65%)。76颗乳尖牙双根的牙位分布左侧和右侧间差异无统计学意义(χ^(2)=1.316,P=0.251),上颌和下颌间差异有统计学意义(χ^(2)=15.213,P=0.000),单侧和双侧间差异有统计学意义(χ^(2)=6.083,P=0.014)。结论乳尖牙双根罕见,发生数目多为1~2颗,男性多于女性,上颌多于下颌,双侧发生多于单侧发生。
Objective The incidence and clinical characteristics of bi-rooted primary canines were investigated by performing oral panoramic radiographs.Methods A total of 100976 oral panoramic radiograph of subjects aged 3−9 years old were collected,and the incidence and distribution of bi-rooted primary canines were observed and recorded.The obtained data were analyzed using SPSS 25.0 statistical software,and the literature on bi-rooted primary canine was reviewed to record patient’s data.Results The incidence of bi-rooted primary canines was 0.37‰(37/100976),of which 0.59‰(32/54276)occurred in males and 0.12‰(5/46700)in females.Statistically significant difference was observed between males and females(χ^(2)=15.955,P=0.000).The number of bi-rooted primary canine in 37 children was mainly 1−2.Among them,11 subjects(29.73%)had one bi-rooted primary canine,and 18 subjects(48.65%)had two birooted primary canines.The tooth position distribution of 76 bi-rooted primary canines showed no significant difference between the left and right sides(χ^(2)=1.316,P=0.251).However,significant difference was found between the upper and lower jaws(χ^(2)=15.213,P=0.000)and between the unilateral and bilateral sides(χ^(2)=6.083,P=0.014).Conclusion Birooted primary canines are rare,mostly occur in 1−2 teeth,and are more common in males than females,in the upper jaw than in the lower jaw,and on both sides than on one side.
作者
徐琳
邱芬芳
束丽红
孟姗
蔡晶
Xu Lin;Qiu Fenfang;Shu Lihong;Meng Shan;Cai Jing(Dept.of Pediatric Dentistry,The Affiliated Stomatological Hospital of Suzhou Vocational Health College,Suzhou 215002,China;Dept.of Pediatric Dentistry,Suzhou Stomatological Hospital,Suzhou 215000,China)
出处
《华西口腔医学杂志》
北大核心
2026年第1期144-148,共5页
West China Journal of Stomatology
关键词
乳尖牙
双根牙
牙根变异
临床研究
primary canine
bi-rooted tooth
root anomaly
clinical study
