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不同连接方式种植体-基台界面细菌微渗漏的比较研究 预览 被引量:6

A comparative study of bacterial microleakage in implants with different implant-abutment connections
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摘要 目的两段式种植体基台连接处的微渗漏是造成种植体负重后骨吸收的重要原因,本研究体外比较3种不同连接方式的种植系统在基台连接部位的细菌微渗漏情况。方法分别选择平台对接内六角连接、5.6°锥度连接和11°锥度连接3组不同基台和种植体连接方式的种植系统,每组各10颗。种植体的内部注入大肠杆菌的悬0浮液。安装基台后将其浸人培养液内,定期取培养液做细菌培养并计算菌落数。结果5h后,内六角连接种植体周的培养液有菌落生长,5.6°锥度连接种植体在24h后有菌落生长,11°锥度连接种植体在48h后有菌落生长。在各时间段,内六角连接种植体周液体培养菌落数均明显高于2种锥度连接的种植体,11°锥度连接种植体细菌微渗漏小于5.6°锥度连接种植体。结论锥度连接种植体基台和种植体连接部位的微渗漏明显小于平台对接的内六角连接种植体。11°锥度连接种植体显示有更少的细菌渗漏。 Objective The bacterial microleakage in the connection of abutment-implant is the main reason of peri-implant bone loss. The aim of the present in vitro study was to evaluate the effects of three different connection types on bacterial microleakage in the connection of abutment-implant. Methods A total of 30 implants (10 implants per group) were used. The implants presented a internal hex butt-connection (group 1), 5.6°conical connection (group 2), and 11° conical connection (group 3). The inner parts of 10 implant in each group, were inoculated with Escherichia coli suspension. Microleakage were assessed at different times. Results More bacterial leakage could be found around internal-hex butt-connection implants than conical-connection implants at any time. 11°conical connection implant showed less bacterial leakage than 5.6° conical connection implant. Conclusion Thebacterial microleakage of conical abutment connection implant was less than internal hex-connection implant, and 11 ° conical connection had the least microleakage.
作者 强河山 张敏 陈钢 Qiang Heshan Zhang Min Cheng Gang ( 1.Medical equipment department, the secondPeople's hospital of Shenzhen; 2.Department of Stomatology, the second People's hospital of Shenzhen; 3. Youmu dental clinic of Shenzhen, Shenzhen 518035 )
出处 《口腔材料器械杂志》 2015年第3期138-141,共4页 Chinese Journal of Dental Materials and Devices
基金 深圳市卫生计生系统科研资助项目(201401018)
关键词 种植牙 基台 微渗漏 大肠杆菌 Implant Abutment Microleakage Escherichia coli
作者简介 通信作者:强河山,E-mail:18923495799@189.cn.
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参考文献12

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