不同清洗方法对牙科手机使用性能的影响

目的:评价不同清洗方法对牙科手机使用性能的影响。方法:牙科新手机40只随机分成实验组与对照组,试验组采用热清洗,对照组采用超声清洗,上油封塑后预真空高温、高压蒸汽消毒,随机分配给固定的5位高年资医师使用,6个月后测试手机的物理性能。结果:热清洗组手机在轴承清洁度、抗锈蚀能力等方面均优于对照组(P均<0.01)。结论:热清洗法对牙科手机内部附件有较强的清洁作用,可较好地维护牙科手机的使用性能。

Effect on performance of high-speed dental handpieces subjected to different cleaning methods

Objective: To investigate the effect on performance of high-speed dental handpieces subjected to different cleaning methods.Methods: Forty new dental high-speed handpieces were divided into trial group and control group randomly.Handpieces in trial group were cleaned with auto-heating cleaning unite while control group were cleaned with ultrasonic cleaning system,all samples were subjected to lubrication,package and autoclaving,then were distributed to 5 senior dentists for clinical use.Performance of high-speed dental handpieces was tested 6 months later.Results: Cleanness of bearings and holding strength and anti-corrosion of handpieces in trial group were better than that in control group.Conclusion: Auto-heating cleaning method can clean the tiny parts of high-speed dental handpieces effectively and maintain its performance.