冷光美白结合微磨损技术治疗氟斑牙疗效初探

目的：观察并评估冷光美白结合微磨损技术治疗氟斑牙的临床效果。方法：28例中度氟斑牙分别采用：A组单纯Beyond冷光美白治疗（5例）；B组Beyond祛氟剂处理结合冷光美白（10例）；c组酸蚀、微量打磨着色部位后冷光美白（13例）。观察美自效果与牙敏感情况。结果：临床美白效果c组〉B组〉A组（P〈0．05），总有效率96-4％。牙敏感发生率C组〉Bgt〉A组（P〉0．05）。结论：Beyond冷光美白技术联合应用微磨损技术，在中度氟斑牙的美自治疗中有很好的应用前景。

The Effect of microabrasion technique combined with Beyond cold light whitening on bleaching dental fluorosis

Objective：To evaluate the clinical effect of microabrasion technique on bleaching dental fluorosis. Method： 28 patients with mid fluorosis dental were divided into 3 groups as： Group A, 5 patients, treated with Beyond cold light-bleaching technique： Group B, 10 patients,treated with fluoride-removing material combined with Beyond cold light- bleaching technique： Group C, 13 patients, treated with microbrasion technique combined with Beyond cold light--bleach- ing. The changes of tooth color were evaluated by VITA shade guide matching after treatment, and tooth sensitivity were ob- verved. Result：The effective rate of bleaching were：group C 〉 group B 〉 group A （x^2=6.941,P 〈0.05）,the total effective rate was 96.4 %. Group A had less dental sensitivity than group B and C, but the difference of sensitivity rate between them was not significant （x^2=2.764, P 〉0.05）. Conclusion： Microbrasion technique combined with Beyond cold light-bleaching is more effective and convenient technique to treat dental flourosis.