纳米银涂层基台在种植牙中应用研究

摘要

Objective To introduce the manufacture of silver nano-particle coating implant abutment,investigate the antibacterial effect of planting body segment in the liquid gum porphyrin (Pg) and bacterium with pay-off actinobacillus (Aa).Methods Choose 60 dental implants then 30 of them were coated the silver nano-particle material according to the experiment design.Select patients who need to grow more than two implants separately installed two different abutment.At 3,6 and 12 months after the appointment,the screw was removed,sterile filter plant body exudate was drawn,and the bacterial colony were counted,the antibacterial rate were calculated.Gingival bleeding index and plaque index were recorded and all these date were analyzed by SPSS.Results The 30 implants coated by silver nano-particle formed better gum closed,the gingival bleeding index and plaque index were significant lower compared to the others (P＜0.05),the antibacterial rate of the abutment to Pg and Aa also had a significant change at more than 80％ (P＜0.05).Conclusion Silver nano-particle coating implant abutment can form good closed gums,reduce the adhesion of bacteria in the mouth,and create long-term implant weeks of relatively aseptic environment.%目的 介绍纳米银涂层基台的制作方法,探讨应用了具有抗菌功能的基台后,对种植体内段液体中牙龈卟啉单胞菌(Pg)和伴放线放线杆菌(Aa)的抗菌效果.方法 选择60颗种植牙,将其中30颗种植牙表面进行纳米银粒涂层,选取30例需种植两颗以上种植体的患者分别安装两种不同的基台,在种植修复完成后3、6和12个月后复诊,对种植体龈沟液进行细菌培养,检测菌落数并计算抗菌率;同时检测牙龈出血指数及菌斑指数,并作分析比较.结果 30颗使用了纳米银粒涂层基台的种植牙修复后3、6和12个月,牙龈封闭良好,牙龈出血指数及菌斑指数均降低(P＜0.05),对Pg和Aa抗菌率均达到80％以上(P＜0.05).结论 纳米银粒涂层的牙种植体基台对牙龈封闭无不利影响,可减少口腔细菌的粘附,维持种植体周的相对无菌环境.