安徽医科大学学报2024，Vol.59Issue(6)：1089-1094,1106,7.DOI:10.19405/j.cnki.issn1000-1492.2024.06.027
儿童上颌第一乳磨牙牙冠增龄性变化的初步研究
A preliminary study on age-related changes in the crown of the first maxillary molar in children
摘要
Abstract
Objective To measure the anatomical parameters of the first maxillary molars in children of different age groups and evaluate the age-related changes in dental crowns.Methods A retrospective analysis was conduc-ted on cone beam computed tomography(CBCT)images of 4-8-year-old children.NNT software was used to ana-lyze multiple important indicators of maxillary first molar.Results A total of 308 first maxillary molars,including 154 pediatric patients,were evaluated in this study.The thickness of the pulp apex H1(left,P=0.01;right,P=0.02)and the thickness of the pulp chamber floor H3(left and right P＜0.01)were positively correlated with age,while the height of the pulp cavity H2(left and right P＜0.01)and the height of the palate tip D1(left P=0.003,right P=0.002)showed a negative correlation with age.There was no significant correlation between the height of the buccal tip and age(P＞0.05).There were significant differences in H1 and H3 between the 4-year-old and 5-year-old age groups between the 8-year-old age group(P＜0.05),as well as significant differences in H2 and D1 between the 4-year-old and 5-year-old between the 6-year-old,7-year-old and 8-year-old age groups(P＜0.05).Conclusion The age-related changes in the crowns of the first maxillary molars are important references for the clinical treatment,and can be accurately measured through CBCT data.关键词
锥形束计算机断层影像/增龄性变化/上颌第一乳磨牙/髓室Key words
cone beam computed tomography imaging/aging related changes/the first maxillary molar/pulp chamber分类
医药卫生引用本文复制引用
朱绍跃,魏路明,袁长永,刘浩,周瑶,刘雨苗,刘宗响,谢妮娜..儿童上颌第一乳磨牙牙冠增龄性变化的初步研究[J].安徽医科大学学报,2024,59(6):1089-1094,1106,7.基金项目
江苏省自然科学基金青年项目(编号:BK20210080) （编号:BK20210080）
徐州市重点研发计划(社会发展)(编号:KC22102) （社会发展）
徐州市卫生健康委科技面上项目(编号:XWKYSL20210200) （编号:XWKYSL20210200）
徐州市彭城英才一医学青年后备人才培养项目(编号:XWRCHT20220033) （编号:XWRCHT20220033）
