摘 要目的：对BEYOND冷光美白着色牙的临床疗效进行观察。方法：选择要求进行牙齿美白治疗的患者运用Beyond冷光美白剂、美白仪进行牙齿美白。结果：着色牙治疗前后牙齿颜色改变均存在显著性差异，p<0.05、显效率达88.9%。18个月后回访，显效率为77.8 %。结论：Beyond冷光美白仪的特殊光学处理，使照射温度大大降低，减轻了术中对牙髓造成的损伤，显效率明显，值得临床推广使用。

    关键词Beyond冷光美白； 着色牙

    AbstractObjective: BEYOND coloring of teeth whitening to observe clinical efficacy.Mothods: The option of requesting for the treatment of patients with tooth whitening Beyond the use of whitening agent, whitening teeth whitening instrument.Results: Colored teeth tooth color change before and after treatment there are significant differences, p <0.05, markedly effective rate 88.9%.18 months after the visit, a significant 77.8% efficiency.Conclusion: Beyond whitening special optical instrument handle, so that irradiation significantly reduced the temperature, thereby reducing the operation of dental pulp caused by injury, significant efficiency significantly, it is worth for clinical use.

    Key wordsBeyond whitening accelerator ；Colored teeth

    着色牙是口腔科中常见的疾病 ......