中文摘要：

目的探究祛氟剂联合Beyond冷光美白仪治疗氟斑牙的疗效。方法80例氟斑牙患者按照抽签方式随机分为观察组和对照组，观察组使用祛氟剂联合Beyond冷光美白仪治疗，对照组则单纯使用Beyond冷光美白仪治疗，观察两组疗效及敏感度的变化，调查满意度。结果治疗后观察组总有效率85．0％明显高于对照组35．0％（P〈0．05）；色阶值（6．47±0．75）明显高于对照组（3．76±0．43）（P〈0．05）；观察组的满意度（90．0％）明显的高于对照组（67．5）（P〈0．05）。结论祛氟剂联合Beyond冷光美白仪治疗氟斑牙效果显著，不增加牙本质敏感性，具有较好的安全性，且满意度高。

英文摘要：

Objective To study the effect of remove fluorine agent joint Beyond cold light whitening on dental fluorosis. Methods Eighty patients with dental fluorosis were selcted and divided into observation group and control group according to the lottery method. The observation group was used remove fluorine agent joint Beyond cold light whitening treatment, while the control group was only used Beyond cold light whitening treatment instrument ; the curative effect, sensitivity of the change and satisfaction rate were observed. Results Total effective rate of the observe group was 85.0%, which was significantly higher than that of control group 35.0% [ P〈0.05 ） ; The color step value of （ 6.47±0. 75 ） was significantly higher than that of control group （ 3.76±0.43 ） （ P〈 0.05 ） ; satisfaction （ 90. 0% ） of observation group was obviously higher than control group （ 67.5 %） （ P〈0.05 ）. Conclusion： Remove fluorine agent joint Beyond cold light whitening treatment has remarkable effect on dental fluorosis with no increased dentine hypersensitivity phenomenon and good security and high satisfaction.