烤瓷冠材料粉尘颗粒分布的测试  

Testing the dust distribution of porcelain crown materials

作　　者：刘睿 高宁 战德松[3] 卫芳[4] 

机构地区：[1]沈阳市大健康体检中心,辽宁省沈阳市110013 [2]鞍山市铁东区陈兆民口腔诊所,辽宁省鞍山市114001 [3]中国医科大学口腔医学院材料教研室,辽宁省沈阳市110002 [4]中国医科大学口腔医学院修复教研室,辽宁省沈阳市110002

出　　处：《中国组织工程研究与临床康复》2008年第23期4542-4543,共2页Journal of Clinical Rehabilitative Tissue Engineering Research

摘　　要：随着全瓷材料在口腔临床上的广泛应用，与瓷冠接触的技师及医师长期受到调磨瓷冠所产生粉尘的危害，粉尘中的微小颗粒将成为引起硅肺的可能。分析在调磨烤瓷牙中产生粉尘的颗粒大小，探讨接触烤瓷牙的医师及技师产生硅肺的可能性。将常规金刚砂车针调磨的烤瓷粉25g进行颗粒分布测试，以确定可能引起硅肺的颗粒所占百分比。结果表明，瓷粉粒度分布范围较宽，覆盖设备的检测范围为0．3～300μm。1．95μm以下占8．49％，2．28μm以下占9．95％，2μm以下占9％左右。可见调磨烤瓷牙的瓷粉颗粒有引起硅肺的可能。As all-ceramic materials have achieved wide applications in the clinical treatment of stomatology, but porcelain crown grinding causes harmful dust, affecting the dentists and the technicians that deal with it everyday. The aim of this study is to analyze the particle size of the dust caused by the porcelain crown, and to discuss the possibility of the silicosis in the dentists and the technicians. 25 g porcelain cement grinded by common silicon carbide bur was used for the particle distribution test, in order to definite the percentage of the dust which might cause the silicosis. Results showed that, the size range of the porcelain cement was fairly broad, covering the detection limit of 0.3-300 μ m of the equipment. The percent of below 1.95 μ m, 2.28 μ m and 2 μ m was 8.49%, 9.95% and 9%, respectively. So the dust of the grinding porcelain crown may cause the silicosis.

关 键 词：瓷冠 颗粒 硅肺 生物材料 

分 类 号：R318[医药卫生—生物医学工程]