摘要
目的预测矫治后牙弓形态和牙齿位置的稳定性。方法对100例正畸患者分别于矫治前、矫治结束、矫治后4年及9年取牙齿模型,测量牙弓长度、宽度、翼长、切牙拥挤度、切牙关系。结果对照分析表明上下颌牙弓随年龄增长而变短、变窄;上切牙拥挤矫治效果较下切牙好。结论尽管正畸患者矫治后有一定复发,但是95%的患者正畸治疗效果稳定。
Objective To predict the stability of dental arch appearance and the teeth after orthodontics. Methods The models of teeth, the length, width and wing length of the dental arches, the incisive crowding condition and the relationship between incisor teeth were observed and analyzed in 100 recurrent cases within 4 to 9 years after orthodontics. Results The length and width of the dental arches decreased with aging. The orthodontics effect of upper-incision was better. Conclusion Although recurrence may occur after orthodontics, 95% of the patients show stable effect.
出处
《口腔医学》
CAS
2005年第3期156-157,共2页
Stomatology
关键词
固定矫治
方丝弓技术
保持器
fixed orthodontics
edgewise technique
maintainer
