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Abstract

The hardness of denture base is influenced with the habit of most commonly consumed. Ulee Kareng Aceh coffee
was atype of robusta coffee which is acidic. The purpose of this study was to determine the change of surface
hardness of acrylic denture base after being immersed in ulee kareng coffee for 3 days. Twelve specimens (5 mm
diameter and 2 mm thickness)were randomly distributed in two groups: control (immersion in distilled water) and
experimental (immersion in Ulee Kareng Aceh coffee). Hardness was measured before and after immersion using
Knoop Microhardness tester (Shimadzu). Data were statistically analyzed by Mann Whitney and Wilcoxon test (α =
0.05). The results of the study showed a significant difference between the groups P < 0.05. The surface hardness of
acrylic denture base decreased after immersion for both group P < 0.05.

Pages

135-139

Rights

©2016Rini Defika Putri, Viona Diansari, Iin Sundari

DOI

10.15562/jdmfs.v10i3.271

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