摘要
目的体外研究氟化钠涂膜对放射线照射后牙釉质显微硬度的影响。方法正常牙釉质标本随机分为4组,分别是:空白组、单纯照射组、涂膜组、涂膜照射组。采用MH-5型显微硬度计测量处理前、处理后及抗龋实验后牙釉质标本的显微硬度,观察牙釉质显微硬度的变化。结果氟化钠涂膜具有抑制酸蚀后牙釉质显微硬度降低的作用。单纯照射组牙釉质显微硬度值显著低于空白组(P<0.05),而涂膜照射组牙釉质显微硬度值显著高于单纯照射组(P<0.05)。结论在放射线照射前于牙釉质表面涂布氟化钠涂膜能减少釉质结构的破坏,提高其抗酸溶解性。
Objective To study the effect of fluoride varnish on microconsistency of enamel after under irradiation in vitro. Methods Normal enamel samples were randomly divided into four groups： control group,irradiation group,fluoride varnish group and fluoride varnish-irradiation group.The microconsistency of enamel surface before and after treatment,after anti-caries test was measured by type MH-5 durometer. Results Fluoride varnish had an inhibitory effect on the decrease of enamel microconsistency etched with lactate buffer.The microconsistency in irradiation group was obviously lower than that in control group（P 〈0.05） and that in fluoride varnish-irradiation group was obviously higher than that in irradiation group（P 〈0.05）. Conclusion Fluoride varnish on enamel before irradiation can effectively decrease the destruction of enamel structure and enhance the resistance acid of enamel.
出处
《西安交通大学学报（医学版）》
CAS
CSCD
北大核心
2008年第5期577-578,585,共3页
Journal of Xi’an Jiaotong University（Medical Sciences）
基金
陕西省科技攻关资助项目[No.2005K14-G2(6)]
关键词
放射线
氟化钠涂膜
釉质
显微硬度
X-ray irradiation
fluoride varnish
enamel
microconsistency
