铒:钇铝石榴石激光照射后牙釉质直径和深度变化的探讨

发布时间：2018-05-26 19:25

本文选题：牙釉质 + 铒　；参考：《重庆医学》2014年04期

【摘要】：目的测量牙釉质在铒:钇铝石榴石激光(Er:YAG)在不同时间和能量照射后直径和深度改变。方法 80个牙釉质样本依据照射时间(10、20s)平分为两大组(每组40例),每大组依据照射能量(0.5、1.0、1.5、2.0及2.5 W)随机分为5小组(每组8例),Er:YAG激光以不同时间及能量进行照射后体视显微镜下观察并测量凹坑的直径和深度。结果 10s照射,牙釉质直径在0.5W和1.0W、0.5W和1.5W、0.5W和2.0W、0.5W和2.5W间比较,差异有统计学意义(P0.05),深度在除1.5W和2.0W的其余组间比较,差异有统计学意义(P0.05);20s照射,牙釉质直径在0.5 W和1.0 W、1.0 W和2.0 W、1.0 W和2.5W间比较,差异有统计学差异(P0.05),深度在除1.5 W和2.0 W的其余组间比较,差异有统计学意义(P0.05)。结论牙釉质在Er:YAG激光不同时间及能量的照射下直径和深度会发生改变,利于指导临床釉质龋的治疗。
[Abstract]:Objective to measure the diameter and depth of the tooth enamel in erbium: yttrium aluminum garnet laser (Er:YAG) after different time and energy irradiation. Methods 80 dental enamel samples were divided into two groups according to the irradiation time (10,20s), and each group was randomly divided into 5 groups based on the irradiation energy (0.5,1.0,1.5,2.0 and 2.5 W), and the Er:YAG laser was not. The diameter and depth of the pits were observed and measured under the stereoscopic microscope after the same time and energy. Results 10s exposure, the diameter of enamel was compared with 0.5W and 1.0W, 0.5W and 1.5W, 0.5W and 2.0W, 0.5W and 2.5W, the difference was statistically significant (P0.05), and the difference was statistically significant between 1.5W and 2.0W. The diameter of tooth enamel in 0.5 W and 1 W, 1 W and 2 W, 1 W and 2.5W, the difference was statistically significant (P0.05), the difference was statistically significant between the other groups except 1.5 W and 2 W (P0.05). Conclusion the tooth enamel could change the diameter and depth under the different time and energy of the Er:YAG laser, which could guide the clinical glaze. Treatment of qualitative caries.
【作者单位】：第三军医大学大坪医院野战外科研究所口腔科;
【分类号】：R781.1

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