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Proceedings Paper

The nondestructive testing research on porcelain-fused-to-metal (PFM) of oral cavity
Author(s): Guo-biao Yang; Zhang Zhang; Yi Ding
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Paper Abstract

PFM has the advantages of real color and anti-milled, widely be used in restoration of teeth destroyed, teeth incomplete and teeth beauty. However, due to the issue of brittleness of ceramics and its manufacturing technology, the case of lost ceramics, crack inside and interface separate often occurs in clinical. In this regard, it not only delay the restoration, but also greatly add the expense of restoration. Hence, a inspection method is required to develop, in order to judge whether there is flaw on the PFM teeth cover or inside or not both before and after restoration. This paper will adopt Scanning Acoustic Microscope and X-Ray Microscope Inspection to conduct the Nondestructive testing for PFM restoration. The results show that the above two methods are both feasible on flaw inspection. Especially, the combination of two methods could effectively inspect the flaw's depth and size on PFM cover or inside, this will provide widely application for clinical in the future.

Paper Details

Date Published: 3 October 2008
PDF: 3 pages
Proc. SPIE 7155, Ninth International Symposium on Laser Metrology, 715537 (3 October 2008); doi: 10.1117/12.814617
Show Author Affiliations
Guo-biao Yang, Tongji Univ. (China)
Zhang Zhang, Tongji Univ. (China)
Yi Ding, Tongji Univ. (China)

Published in SPIE Proceedings Vol. 7155:
Ninth International Symposium on Laser Metrology
Chenggen Quan; Anand Asundi, Editor(s)

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