青岛大学学报（医学版）2023，Vol.59Issue(6)：874-879,6.DOI:10.11712/jms.2096-5532.2023.59.194
儿童第二乳磨牙近中面釉质凹陷临床分析
A CLINICAL ANALYSIS OF ENAMEL DEPRESSION ON THE MESIAL SURFACE OF THE SECOND DECIDUOUS MOLARS IN CHILDREN
摘要
Abstract
Objective To analyze the distribution characteristics of enamel depressionon the mesial marginal ridge and non-marginal ridge of the mesial-tongue surfaces,as well as dental caries on the mesial surfaceof the second deciduous molars(SDMs),and to providea reference for the prevention and treatment of caries on the adjacent surfaces of the SDMs.Methods A total of 157 children with enamel depression on the mesial marginal ridge of at least one SDM were enrolled in the study.The chil-dren were analyzedfor the types and distribution of enamel depression on the mesial marginal ridge and non-marginal ridge of the mesial-tongue surfaces,as well as dental caries on the mesial surface of the SDMs.Results A total of 628 SDMs were collected.Sixty-nine point four percent of the SDMs had enamel depression on the mesial marginal ridge,with type Ⅲ mainly distributed in the lower jaw(χ2=63.01,P<0.05)and types Ⅳ,Ⅵ,and Ⅶ mainly distributed in the upper jaw(χ2=15.74-24.03,P<0.05).Fifty-two point five percent of the SDMs had enamel depression onthe non-marginal ridge of the mesial-tongue surfaces,with types Ⅰ and Ⅲ mainly distributed in the upper jaw(χ2 =10.23,41.25,P<0.05).There was a significant difference in the number of enamel depressionsat different tooth positions(H=58.90,P<0.05).Clinical examination results showed thatthe number of SDMs with early caries in the upper jaw was significantly higher than that in the lower jaw(P<0.001).The imaging examination results showed that the number of SDMs with early caries in the upper jaw was significantly higher than that in the lower jaw(χ2=75.23,P<0.05);there weresignificant differences in the number of teeth with early caries,mid-term caries,and severe caries between the four tooth positions(χ2=7.88-28.24,P<0.05).Conclusion There are certain characteristics in the type,number,and distribution of enamel depressionon the mesial marginal ridge of the SDMs,the type and distribution of enamel depressionon the non-marginal ridge of the mesial-tongue surfaces,and the caries on the mesial surface.关键词
牙,乳/磨牙,第二/龋齿/牙釉质Key words
tooth,deciduous/molar,second/dental caries/dental enamel分类
医药卫生引用本文复制引用
于建新,孙晓,吴金程,姜松磊,王春燕,庞宝兴..儿童第二乳磨牙近中面釉质凹陷临床分析[J].青岛大学学报（医学版）,2023,59(6):874-879,6.基金项目
山东省自然科学基金项目(ZR2017BH034) （ZR2017BH034）
