氟斑牙对青少年正畸拔牙区牙槽骨面积和牙齿移动影响的研究  

The effects of dental fluorosis on the tooth movement in adolescents after tooth extraction for orthodontic treatment

作　　者：于阳阳[1] 邹冬荣 刘晓燕[1] 于晓峰[1] 杨晓昀[1] 营杰[1] 

机构地区：[1]华北石油管理局总医院口腔科,任丘062552

出　　处：《实用口腔医学杂志》2016年第1期77-80,共4页Journal of Practical Stomatology

基　　金：华北油田矿区医疗卫生临床医学相关研究(编号:2014-HB-G13-02)

摘　　要：目的:研究沧州地区氟斑牙青少年在正畸治疗拔除第一前磨牙后,拔牙区牙槽骨的面积和牙齿移动的距离。方法:纳入50例青少年正畸患者,按照氟斑牙指数分为轻(13例)、中(10例)、重(7例)及正常对照组(20例)4组,拔除■,戴用矫治器后1周、1个月、2个月、3个月时拍摄口腔全景片用autoCAD软件计算牙槽骨面积,并测量石膏模型上牙齿移动距离。结果:拔牙后1、2、3个月氟斑牙组拔牙创牙槽骨面积小于对照组(P<0.01)牙齿移动距离大于对照组(P<0.01)牙齿移动距离与拔牙创面积呈负相关(P<0.05)。结论:氟斑牙影响正畸治疗中拔牙创牙槽骨改建及牙齿移动速度。Objective： To study the effects of dental fluorosis on the tooth movement following extraction of adjacent tooth in adoles- cents for orthodontic treatment. Methods： 50 adolescents were divided into mild （n = 13 ）, moderat （n = 10 ）, severe （n = 7 ） and healthy control（ n = 20） groups according to the fluorosis severity using Dean＇s index. 4丨4 were extracted and appliance was applied. X-ray image was taken 1 week and 1, 2 and 3 months after appliace activation. Tooth movement was measured cephalometrically by Auto CAD. Results： Tooth moving distance was more（ P 〈 0.01 ） and the alveolar bone resorption area was smaller in fluorosis group than those in healthy control group （P 〈 0.01 ） 1,2 and 3 months after appliance activation. The moving distance was negativelly relat- ed with bone remodling area（ P 〈 0.05 ）. Conclusion ： Adolescent dental flurosis play an important role in bone remdodeling in extra- tion sites and tooth movement during orthodontic treatment.

关 键 词：青少年氟斑牙 正畸 牙槽骨改建 牙齿移动 

分 类 号：R783.5[医药卫生—口腔医学]