The effect of K 2 SO 4 solution on type III gypsum surface roughness

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Abstract

The working model of type III gypsum is commonly used as working model for removable dentures. K 2 SO 4 is well known as an effective accelerator to accelerate the gypsum setting time. This study aimed to identify the effect of K 2 SO 4 1.5% solution on type III gypsum surface roughness. Surface roughness tests were performed using a Surface Roughness Tester at 1 hour, 24 hours, and 7 days after manipulation the gypsum. The results showed that type III gypsum surface roughness varied until the 7-day test. Moreover, the surface roughness of type III gypsum and K2SO4 1.5% solution is lower than type III gypsum surface roughness and equal to type IV gypsum surface roughness. It is concluded that the addition of K2SO4 1.5% solution decreased type III gypsum surface roughness.

Original languageEnglish
Article number012043
JournalJournal of Physics: Conference Series
Volume884
Issue number1
DOIs
Publication statusPublished - 30 Aug 2017
Event1st Physics and Technologies in Medicine and Dentistry Symposium, PTMDS 2017 - Depok, West Java, Indonesia
Duration: 15 Jul 201716 Jul 2017

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