摘要
齿科印模广泛用于口腔修复领域,是用于口腔内形成印模,便于后期在其内灌制模型。为了测试齿科印膜材料厚度,为临床医学使用提供参考,采用临床印模作为研究对象,通过光学方法,利用电荷耦合装置(CCD)进行采集待测印模切面灰度图像,并且该切面与钢刻度尺置于同一平面。利用实际标尺刻度与像素间的转换关系,对印模试件进行壁厚测量。结果表明利用光学方法测试壁厚可行,能够到达微米量级。为类似结构的生物组织工程材料的厚度测试提供了实验方法和技术。
Dental impressions are widely used in the field of oral restoration. The materials are used for making im- pression in oral cavity. In order to measure the thickness of impression for reference in clinic, the real impressions are taken as the object for studying. Through optical method, charge-coupled device （CCD） is used for collecting the grey image of cutting section of the impressions which are located in the same plane with steel dividing ruler. Accord- ing to convert relationship between dividing ruler and pixels collecting grey image, the thickness of impression speci- mens can be obtained. The results show that the optical method used for measuring thickness is feasible to the task and the precision can reach micro dimension. The experiment method and technique can also be provided for measur- ing thickness of similar tissue engineering materials.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2014年第6期1229-1232,共4页
Journal of Biomedical Engineering
基金
上海市教委创新基金资助项目(4521ZK130058010-14YZ143)
关键词
光学
印膜
壁厚
optics
dental impression
wall thickness
