氟化物涂膜对正畸固定矫治中牙釉质脱矿影响的SEM研究  

SEM study of fluoride varnish on enamel demineralization effects during fixed orthodontic treatment

作　　者：姚丽芸[1] 

机构地区：[1]邢台医学高等专科学校第二附属医院口腔科,河北邢台054000

出　　处：《临床口腔医学杂志》2015年第1期12-14,共3页Journal of Clinical Stomatology

摘　　要：目的:采用扫描电镜(SEM)观察氟化物涂膜对抑制离体牙牙釉质脱矿及促进再矿化的功效。方法:选择因正畸需要拔除的前磨牙15颗,经37%磷酸处理,制备人工釉质脱矿标本,并用氟化物涂膜进行表面处理。采用SEM对标本脱矿前(对照组),脱矿后(脱矿组)以及氟化物涂膜治疗后(治疗组)的表面形貌进行观察分析。结果:对照组与脱矿组之间、脱矿组与治疗组之间形态学存在显著差异,而对照组与治疗组之间形态学差异相对较小。结论:氟化物涂膜可有效改善釉质脱矿后的牙齿脱矿形貌。Objective：To investigate effects of fluoride varnish on the inhibition of teeth enamel demineralization and promotion of remineralization using scanning electron microscopy（SEM）,and provide the experimental basis for dental caries prevention during fixed orthodontic treatment. Method：15 premolars extracted for orthodontic treatment were used and demineralized using 37%phosphate acid to prepare artificial demineralization of enamel specimens. Then the demineralized surface was treated by fluoride varnish. SEM was applied to observe surface morphology before and after demineralization , and after fluoride varnish. Result：There was significant morphological difference among the control group ,the demineralized group and the fluoride treatment group. However,the morphological difference between the control group and fluoride treated group is relatively small. Conclusion：Fluoride varnish can effectively improve remineralization of demineralized enamel.

关 键 词：牙釉质 脱矿 氟化物涂膜 

分 类 号：R780.1[医药卫生—口腔医学]