目的：Er,Cr:YSGG激光与传统方式两种方法治疗种植体周围炎临床效果的比较。方法：经筛选最后纳入患有种植体周围炎的患者30例，共包含39颗种植体，遵循随机原则分为两组:①试验组：15例患者，19颗植体，采用Er,Cr:YSGG激光治疗（参数设置：1.0W,20HZ，15%空气，20%水）；②对照组:15例患者，20颗植体，采用传统方式治疗（包括碳纤维超声龈上洁治+塑料刮治器龈下刮治+盐酸米诺环素软膏联合法）。在基线及1、2、3个月时由同一位不知分组情况的牙周医生来评估如下临床指标:探诊深度(PD)、牙菌斑指数(PI)和探诊出血指数(BOP)。结果：在基线水平，试验组和对照组的所有上述的临床检查指标的差异无显著统计学意义。采用两种不同的方法治疗后,在不同的时间点，检查到的种植体周的PD、PI和BOP的值与基线水平相比均有显著的降低，差异有统计学意义（P<0.01）。在治疗后2个月时，两组检查到的PD和BOP值的差异有统计学意义（P<0.05）;在治疗后3个月时，两组的PD值的差异有显著统计学意义（P<0.01）,两组的BOP值的差异有统计学意义（P<0.05）。结论：基于本研究有限病例的短期研究：①两种方法治疗后1～3个月均可显著改善以上临床指标;②在BOP和PD方面，从第2个月开始到第3个月，试验组均优于对照组。

Objective:Comparison of the clinical effects of Er,Cr:YSGG laser treatment and traditional treatment for peri-implantitis. Methods: 30 patients with peri-implantitis were enrolled after screening, including 39 implants in total, and they were divided into two groups according to the principle of randomization: ①Test group: 15 patients with 19 implants were treated with Er,Cr:YSGG laser (parameter setting: 1.0W , 20HZ, 15% air, 20% water), ②Control group: 15 patients with 20 implants were treated with traditional treatment method (including carbon fiber ultrasonic supragingival cleaning + plastic curette subgingival curettage + minocycline hydrochloride ointment combined method). The following clinical indicators were evaluated by the same periodontist who did not know the group classification at baseline and first, second, and third month: probing depth (PD), plaque index (PI) and bleeding on probing (BOP). Results: There was no statistically significant difference in all of the clinical indicators between test group and control group at baseline. After treatment with two methods, at different time , PD, PI and BOP around the implant were significantly reduced compared with baseline, and the difference was statistically significant (P<0.01). At the second month after treatment, the difference in PD and BOP values detected between the two groups were statistically significant (P<0.05); At the third month after treatment, the difference in PD between the two groups was statistically significant (P<0.01), and the difference in BOP between the two groups was also statistically significant(P<0.05). Conclusion:Short-term study based on limited cases in this trial :① Both methods can significantly improve the above clinical indicators after 1～3 months ,treatment; ② In terms of BOP and PD, from the second month to the third month, the effect of experimental group is better than the control group based on this study.

2019年邯郸市科学技术局计划项目 ,