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KMID : 0615219920170010403
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Journal of Kwangju Health
1992 Volume.17 No. 1 p.403 ~ p.413
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Finishing and Polishing Techniques of Dental Cobalt-Chromium Alloy Castings
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정종현/Jung JH
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Abstract
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This study was done to select the finishing and polishing method that provides the smoothest surface on Co-Cr castings and to compare the effectiveness of different polishing techniques.
The effect of jinishing and polishing techniques on surface roughness of a cobalt-chromium alloy was evaluated by means of a stylus profile instrumentation and image analyzer.
The best surface finish is obtained when sand blasting, stone wheel. abrasive disk, 2nd sand blasting, electrolytic poliashing, rubber point, felt wheel with rouge are used progressively.
Surface profile tracings, surface roughness recordings, and image analyzing photograph support the results from the evaluations made in this study.
The results of this study indicate that the finishing operation should be carried out in a logical, all scratches are removed, after which a polishing material is applied to give a high luster to the finished work.
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KEYWORD
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