摘要
目的:探讨将微型种植钉作为增强支抗措施的临床稳定性,分析影响微型种植钉成功率的危险因素。方法:选择错患者48例(男性18例,女性30例,平均年龄23.2±6.5岁),植入微型种植钉的总数量为152枚,微型种植钉的负载期为10个月,评价11个临床变量与微型种植钉成功率的关系。结果:微型种植钉的总成功率为90.1%,口腔卫生状况、微型种植钉植入部位的牙周组织肿胀、牙周炎史、下颌平面角的高低等与微型种植钉的稳定性密切相关;而宿主因素(年龄、性别)、微型种植钉因素(长度)、微型种植钉植入的设计因素(上下颌骨植入部位、植入微型种植钉的角度、是否即刻负载、微型种植钉的加力方式)等对微型种植钉成功率的影响无显著性差异。结论:针对使用微型种植钉的患者,维持好的口腔卫生、对下颌平面角较高的患者采取谨慎设计、防止微型种植钉周围组织肿胀,对于提高微型种植钉植入的成功率是非常重要的。
Objective： To evaluate the success rates and find factors affecting the clinical success of miniscrew used as orthodontic anchorage. Methods： Forty-eight malocclusional patients （18 males,30 females, mean age was 23.2± 6.5 years old） with a total 152 miniscrews were examined. The miniscrew＇s success rates during a 10-month period of force loading were determined according to 11 clinical variables. Results： The overall success rate was 90.1%. It was showed that the oral hygiene status takes very important part in success rate. Inflammation of the peri-miniscrew tissue, high mandibular plane angle, and periodontitis＇history were the relative risk factors in the logistic regression analysis. The clinical variables of host factors （age, gender）, miniscrew factors （length）, planning factors （maxilla or mandible, angle of placement, immediate loading, method of force loading） did not show statistically significant differences in success rates. Conclusion： To improve the success rate of miniscrews, the thickness of buccal cortical bone in subjects with a high mandibuar plane angle should be examined carefully, good oral hygiene should be maintained, inflammation around the miniscrews must be controlled.
出处
《口腔颌面修复学杂志》
2009年第3期173-176,共4页
Chinese Journal of Prosthodontics
