New finishing instruments for composite resins.
New finishing instruments for composite resins.
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用于复合树脂的新型精加工仪器。
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
R. Phillips
中科院分区：
文献类型：
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作者：
Felix Lutz;J. Setcos;R. Phillips
复合树脂抛光的修整包括粗修整、轮廓修整、精修整和抛光。一系列氧化铝涂层的软盘已经上市，并适用于该目的。然而，它们的使用仅限于可直接访问的凸表面。对于小的划定区域的精确修整，以及凹面和咬合面，刚性旋转工具是必要的。目前使用的宝石和碳化钨布尔斯是无效的微填充复合系统。因此，评价了一系列涂覆有40和15微米金刚石芯片的精加工布尔斯，因为与现有工具相比，其研磨效果上级。表面粗糙度测量以及定性和定量的SEM评价表明，这些精细和超细金刚石抛光布尔斯在复合树脂上产生的表面与碳化钨布尔斯和石头一样光滑。同时，它们对复合树脂涂层造成的表面和次表面损伤或边缘断裂较少。三年的临床经验通常是有利的。进一步的定量临床研究是必要的。
The trimming of composite resin restorations encompasses gross finishing, contouring, fine finishing, and polishing. A series of aluminum oxide-coated flexible disks have been marketed and are suitable for that purpose. However, their use is confined to directly accessible convex surfaces. For precise finishing of small delineated areas, and for concave and occlusal surfaces, rigid rotary instruments are necessary. The currently used stones and tungsten carbide burs are ineffective with microfilled composite systems. Thus, a series of finishing burs coated with 40- and 15-microns diamond chips were evaluated because of the superior grinding effectiveness as compared with existing instruments. Surface roughness measurements, and qualitative and quantitative SEM evaluations, indicate that these fine and superfine diamond finishing burs produce surfaces on composite resins as smooth as tungsten carbide burs and stones. At the same time, they cause less surface and subsurface damage or marginal fractures on composite resin restorations. The three-year clinical experience is generally favorable. Further quantitative clinical studies are warranted.