改良固位型活动矫治器对替牙期错的矫治效果
2015-05-11牛树强高杨
牛树强,高杨
(青岛市口腔医院正畸科,山东 青岛 266001)
牛树强,高杨
(青岛市口腔医院正畸科,山东 青岛 266001)
1 临床资料
1.1一般资料
1.2矫治方法
1.3治疗结果
病人戴用改良固位型活动矫治器后,矫治器在口内固位良好,无明显不适感,部分全天戴用的病人在进食时亦无松动脱落而影响矫治器佩戴的情况。每次复诊时检查固位、加力装置及病人的口腔卫生情况,观察粘接剂的磨损情况。病人全部完成矫治,时间2~8个月,平均矫治时间4.5个月。
2 讨 论
固位是加力型活动矫治器矫治成功的关键。评价一个活动矫治器的临床表现如何,固位甚至比矫治弹簧更重要,如果矫治器经常脱位,矫治就起不到应有的作用。为了获得更好的固位,卡环的固位点必须与倒凹区吻合,对于替牙期病人,该点可能必须稍微进入部分牙龈沟。如果加力频繁或者加载的力值大,就需要更多的卡环来帮助增强固位。活动矫治器的固位装置主要包括单臂卡、邻间钩和箭头卡等卡环,对于活动矫治器佩戴的固位效果来说,固位牙条件差的病人,都没有合适的倒凹区让卡环卡入,无论是箭头卡、单臂卡或者邻间钩,都难以形成良好的固位,一旦加力,矫治器就会明显松动、出现间隙甚至脱落。
[1] 傅民魁. 口腔正畸学[M]. 5版. 北京:人民卫生出版社, 2007.
[5] 傅民魁. 口腔专科教程[M]. 北京:人民卫生出版社, 2010.
[6] 滕琦,孙加义,曾欣. 青岛市市南区3 362名小学生口腔健康状况调查[J]. 齐鲁医学杂志, 2010,25(6):544-545.
[7] 欧平花,厉松. 口腔正畸光固化粘接剂研究及应用进展[J]. 北京口腔医学, 2009,17(4):238-240.
(本文编辑 马伟平)
EFFECT OF MODIFIED RETAINED REMOVABLE APPLIANCE ON CORRECTION OF DENTAL MALOCCLUSION
NIUShuqiang,GAOYang
(Department of Orthodontics, Qingdao Hospital of Stomatology, Qingdao 266001, China)
ObjectiveTo assess the efficacy of modified retained removable appliance in correcting dental malocclusion.MethodsDuring 2010—2012,16 patients with dentition malocclusion were treated in our hospital by using modified retained removable appliance.ResultsAll the patients completed the treatment, the appliances were well retained, the average time of treatment was 4.5 months.ConclusionThe modified retained removable appliance can provide a satisfactory retention for patients with mixed dentition malocclusion and ensure timely completion of treatment.
malocclusion; orthodontic appliances; immobilization
2014-07-27;
2014-11-20
牛树强(1980-),男,硕士研究生。
R783.5
A
1008-0341(2015)03-0335-02