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目的:研究分析将甲硝唑控释药膜用于治疗牙周病的临床疗效.方法:选取我院2013年3月至2014年3月收治的60例牙周病患者,随机分为对照组与观察组,各30例.对照组使用甲硝唑治疗,观察组实施甲硝唑控释药膜治疗,对比两组患者治疗前后的牙龈指数、出血指数、菌斑指数以及牙周袋深度等指标的变化情况,以及治疗后的效果.结果:治疗前,两组患者的各项指标,差异无统计学意义(P﹥0.05);治疗后,观察组患者各项指标的改善程度均优于对照组;治疗有效率为90.00%,高于对照组的66.67%,差异有统计学意义(P 0.05); after treatment, the degree of improvement observed in patients of the indicators are better than the control group; therapeutically effective rate was 90.00%, higher than 66.67% in the control group, the difference was statistically significant (P <0.05).Conclusion The use of metronidazole controlled release membrane in treatment of periodontal disease, which can effectively improve the treatment efficiency, improve patient gingival index, bleeding index, plaque index and pocket depth and other indicators.