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KMID : 0362219920190010109
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Journal of The Korean Research Society for Dental Materials
1992 Volume.19 No. 1 p.109 ~ p.117
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DETERMINATION OF METHOD OF PROCESS, NET MASS AND WORKING TIME OF DENTAL AMALGAMS
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Abstract
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The method of process and the proper working time of dental amalgams were very important factor to restore the tooth accurately. In this study, we inspected the method of process by the manufacturer and determined the net mass and working time
(Eames
technique) of dental amalgams used in Korea, seven of which were made domestically and fourteen of which were imported. We followed the guidelines of KDA Specification No. 1., KSP5103., RANSI/ADA Specification No. 1 and ISO 1559.
@ES From the experiment, the following results can be drawn:
@EN 1. In some of the imported dental amalgam alloys, the type, class chemical composition, net mass, date of manufacture and lot number were not described.
2. Net mass of one tablet of dental amalgam alloy was from 285±5 mg to 402±5 mg.
3. The working time of dental amalgam was from around 3 minutes to 10 minutes.
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