性别、年龄与微种植钉支抗稳定性的关系  

The relationship between the stability of microimplants and factors of gender and age

作　　者：嵇国平[1] 于泉[1] 沈刚[1] 

机构地区：[1]上海交通大学医学院附属第九人民医院·口腔医学院口腔正畸科,上海市口腔医学研究所·上海市口腔医学重点实验室,上海200011

出　　处：《上海口腔医学》2008年第4期360-363,共4页Shanghai Journal of Stomatology

摘　　要：目的:对286颗用于前牙内收的上颌微种植钉支抗植入后的松动率进行总结,探讨性别、年龄与微种植钉植入后稳定性之间的关系。方法:对143例患者的286颗上颌后牙牙槽嵴区的自攻型微种植钉的松动率进行分析,比较不同性别组和年龄组种植钉植入后松动率的差异,以及不同年龄组双侧种植钉同时松动率的差异。数据采用SPSS15.0软件包进行x^2检验或U检验。结果:286颗种植钉中共有50颗出现松动,平均松动率为17.5%,其中,儿童组男女种植钉松动率分别为23.1%、20.7%,成人组男女种植钉松动率分别为10.0%、12.1%,均无统计学差异;儿童组总的松动率为21.8%,成人总松动率为11.2%,有统计学差异(双侧x^2检验,P<0.05)。儿童和成人双侧种植钉同时松动的发生率为分别8.2%、1.7%,有统计学差异(单侧U检验,P<0.05)。结论:本组微种植支抗的平均松动率为17.5%,性别与做种植钉稳定性无明显天系,儿童微种植钉松动概率远大于成人。PURPOSE： To summarize the clinical failure rate of 286 self-drilling microimplant anchorages and to investigate the relationship between the stability of microimplant anchorages and the patient＇s gender and age. METHODS： The failure rate of 286 self-drilling microimplants placed in the maxillary posterior region for anterior teeth retraction was analyzed. All 143 cases were sorted into male group and female group by gender, as well as children group and adult group by age. The difference of failure rates was compared between male group and female group , as was done between children group and adult group. Besides, the incidence of failure in both sides of one patient was also compared between children group and adult group. The data were analyzed by Chi-square or U test with SPSS15.0 software package. RESULTS： Totally 50 microimplants failed and the average failure rate of 286 microimplants was 17.5%. The failure rates were 23.1% and 20.7% in children male group and children female group, and 10.0% and 12.1% in adult male group and adult female group. No significant difference was found between different gender groups. The total failure rate in children group was 21.8%, and 11.2% in aduh group. The difference was significant （P〈0.05, Chi-square test, two-tailed test）. The incidence of failure in both sides in children group was 8.2%, while 1.7% in adult group. The difference was also significant （P〈0.05, U test, one tailed test）. CONCLUSIONS： In this study, the average failure rate of 286 self- drilling microimplants is 17.5%. There is no significant relationship between the stability of microimplants and gender. It seems more possible for microimplants placed in children to fail than those in adults.

关 键 词：种植支抗 自攻型 松动率 前牙内收 

分 类 号：R783.5[医药卫生—口腔医学]