超声洁治和局部用甲硝唑治疗轻、中度种植体周围炎

目的：评价用碳纤维工作头的超声洁牙机和25％甲硝唑凝胶治疗种植体周围炎的疗效。方法：将27颗患轻中度种植体周围炎的种植牙随机分为洁牙机治疗组和甲硝唑治疗组，在基线、1、2、6和12周时检查种植体的临床和生物学指标。结果： 两种治疗方法均可使菌斑指数、龈沟出血指数、龋下微生物的酶活性检查等指标改善。治疗期间未发现任何不良反应。结论；碳纤维头超声洁治和局部用25％甲硝唑凝胶是治疗牙种植体周围炎的安全有效的方法。

Effects of non-surgical treatment modalities on peri-implantitis

Objective To evaluate the effects of local delivery of 25% metronidazol gel and mechanical cleaning using ultrasonic carbon fiber tip on dental implants with peri implantitis. Methods 27 implants with peri implantitis were randomly assigned to receiving either 25% metronidazol gel treatment or carbon fiber tip ultrasonic scaling. All parameters including plaque index(PLI), probing depth (PD) of pocket, sulcular bleeding index (SBI), and BANA enzyme analysis were measured at baseline, 1,2, 6 and 12 weeks after treatment. Results Statistically significant decrease ( P< 0 05) in SBI, BANA test and PLI occured in both treatment groups at all time intervals compared to baseline. PD had a decreasing tendency in both groups, but only metronidazole group reached statistically significant level ( P< 0 05) at 2 and 6 week intervals compared to baseline. None of the treatment modalities produced any side effects on the implant and peri implant tissues. Conclusions Both 25% metronidazol gel and mechanical cleaning using ultrasonic carbon fiber tip can be safely and effectively used in the treatment of peri implant diseases.