摘要
目的:了解不同拔牙方式正畸患者的治疗结果,为今后确立准确有效的拔牙选择和治疗标准提供临床指导和科学依据。方法:分别对 224例治疗前后模型进行PAR指数各项指标测量评分,评估治疗结果,对比不同拔牙方式疗效。结果: 224 例样本治疗后PAR总分值平均减少 20. 37±7. 99,减少百分率为74. 31±13. 63,非典型拔牙组治疗后PAR分值减少量和减少率高于不拔牙组(P<0. 05),取得了更多的牙合变化量。结论: 所选样本治疗改善效果明显,非典型拔牙组取得了较不拔牙组更明显的治疗效果。
Objective:To study treatment outcome with different tooth extraction pattern in orthodontic therapy. Methods:Extraction of 4 first premolars was conducted in 96 cases (group 1),that of 4 second premolors in 14(group 2),atypical extraction in 42 (group 3) and no extraction in 72 (group 4).Then orthodontic treatment was performed.Peer assessment rating(PAR) index was applied on pre- and post-orthodontic treatment dental casts for all the 224 patients.The treatment outcome was analysed by the reduction PAR score. Results:After treatment the mean PAR score reduction of all the cases was 20.37±7.99, the percentage reduction was 74.31±13.63.In group 1,2,3 and 4,the percentage reduction of PAR after treatment was 73.73±15.21,78.09±10.51,77.63± 12.62 and 72.40±12.20 respectively.Conclusion:Treatment with symmetrical and atypical extraction pattern may result in better treatment outcome than that with non-extraction pattern.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2005年第2期259-261,共3页
Journal of Practical Stomatology
关键词
PAR指数
拔牙方式
治疗结果
PAR index
Extraction pattern
Treatment outcome
