摘要
分析520例小学生（6～12岁）乳恒牙替换异常．包括乳牙滞留（占37．88%）、“双排牙”（占33．85％）和恒牙迟萌（15．77％）和乳牙早脱（占12．50%）。结果显示：各种替牙异常中．以8岁、7岁、6岁三个年龄组的小学生发病最高（分别占25．38%、23．27%、20．58%），而各种替牙异常的男女小学生发病率均无显著性差异（P＞0．05）。
Autbor presents 520 cco of deddco -permanent teeth replace abnormally, they are allprimary school children. The abmality included retained decidco tooth (37. 88 % ), 'two row tooth'(33. 85 % ). delayed eruption of permanent tooth(15. 77% ) and premature shedding of deciduous tooth(12. 50 % ). Among 520 cases, the morbidity of the abnormality was higher in children aged 8, 7 and 6years(25. 38 %, 23. 27% and 20. 58 % respectively ). The differnce was no significant in the morbiditybetween boys and girls(P > 0.05 ). The cauaes and characteristics of these disease were analysed and appropriate measures of prevention and breatment were devloped,
出处
《中国学校卫生》
CAS
北大核心
1997年第3期216-217,共2页
Chinese Journal of School Health
关键词
乳牙
恒牙
替牙异常
小学生
deciduous teeth
permanent teeth
teeth replace abnormally
primary school child
