种植牙龈下牙龈卟啉单胞菌的一年变化观察

摘要

Objective: To study the changes of Porphyromonas gingialis (Pg) of the implants within one year. Methods: Collect 44 implants in 32 patients. Evaluate, in the four stages of one month, 3 months, 6 months and 12 months after restoration, their Plaque Index (PLI), Gingival Index (GI), Gingival Bleeding Index (GBI), Probing Depth (PD) and X-ray bone absorption. Subgingival plaque samples were cultured separately by the selective medium of Pg. Results: As time went on, the value of Pg is increasing. The value of Pg is statistically different between the 1 st and the 3rd month, the 3rd month and the 6th month, the 1st month and the 6th month and show no statistical difference between the 6th and 12th month. Other tested indexes show no statistic difference. Conclusions: Patients with implants should be guided to do cleansing and maintenance in oral cavity after 6 months restoration, so as to prevent peri-implantitis and increase success rate of implants.%目的:研究1年内种植牙龈下牙龈卟啉单胞菌的变化情况,为种植体的定期维护提供理论基础.方法:临床选取32名种植患者的44枚种植体,记录了修复后1,3,6,12个月入选种植牙的菌斑指数(PLI),牙龈指数(GI),牙龈出血指数(GBI)及探诊深度(PD);采用牙龈卟啉单胞菌的选择性培养基对龈下菌斑标本进行了分离培养.结果:分析P.gingivalis均数的变化发现其检出量随时间延长不断增加,检出量在1个月和3个月、3个月和6个月、1个月和6个月比较有统计学差异(P<0.05),但在6个月和12个月比较差异无统计学意义(P>0.05).各临床指标和X线片指标随时间的变化无统计学意义(P>0.05).结论:在临床工作中,应注意加强种植修复后0.5年内种植患者的口腔维护,控制牙龈卟啉单胞菌等可疑致病菌的数量,预防种植体周围炎的发生,提高种植成功率.