An accurate and simple method for the measurement of dental composite wear.
An accurate and simple method for the measurement of dental composite wear.
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一种准确、简单的牙科复合材料磨损测量方法。
DOI：
10.1111/j.1365-2842.1996.tb00884.x
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发表时间：
1996
影响因子：
2.9
通讯作者：
Greener,EH
中科院分区：
文献类型：
--
作者：
Winkler,MM;Lautenschlager,EP;Boghosian,A;Greener,EH
这项研究描述了一个相对简单的机械技术，用于测量咬合磨损的边缘的牙齿矫正。该设备基本上是一个定制轮廓仪，由一个线性可变差动Transformer（其核心由双悬臂弹簧支撑）、一个特殊形状的触针、一个电机驱动的显微镜载物台、利用颜色编码来区分斜率差异的定制计算机软件和一个十字准线形鼠标光标来区分磨损边界。评价了两组目视标准结石模型。第一组由17个加工钢模具的石头复制品组成，第二组由5个临床铸件组成，这些铸件已被用于通过直接视觉测量复合材料的磨损。当测量加工钢模具的石头复制品时，发现再现性为2 μm，而对于临床标准，它为16 μm。
This study describes a relatively simple mechanical technique for measuring occlusal wear at the margin of dental restorations. The device was essentially a custom profilometer which consisted of a linear variable differential transformer with its core supported by double cantilever springs, a specially shaped stylus, a motor driven microscopic stage, custom computer software utilizing a colour coding to separate differences in slope, and a cross‐hair‐shaped mouse cursor to differentiate the boundary of wear. Two sets of visual standard stone casts were evaluated. The first set consisted of 17 stone replicas of machined steel dies and the second set consisted of five clinical casts, which have been used to measure the wear of composite restorations by direct vision. The reproducibility found when measuring the stone replicas of the machined steel dies was 2 μm, while, for the clinical standards, it was 16 μm.