Pengaruh Lama Perendaman Basis Gigi Tiruan Resin Akrilik Polimerisasi Panas dalam Larutan Kopi, Teh, dan Jamu terhadap Stabilitas Warna

Abstract

Heat cured acrylic resin (HCAR) denture base is the most popular dentures today. The HCAR denture base is hydrophilic which is associated with porosity which will cause discoloration that affects the color stability of the denture base. Discoloration of dentures can be caused by extrinsic factors that came from exposure to dyes and the level of acidity (pH) of drinks or food consumed by patients. The purpose of this study was to determine the effect of immersion time of HCAR denture base in coffee, tea, and herbal solutions on color stability. The sample in this study was a cylindrical HCAR which diameter is 20 mm × 3 mm. Samples were soaked in a coffee, tea and herbal solutions for 3, 5 and 7 days. Color change was measured using a spectrophotometer. The data were analyzed by using the one-way ANOVA test. The smallest x̄ ± SD values were found in samples soaked for 3 days, the coffee group 0.85 ± 0.15; tea group 0.85 ± 0.17; and the herbal solutions group 0.90 ± 0.14. The highest x̄ ± SD values were found in samples soaked for 7 days, the coffee group 0.90 ± 0.07; tea group 0.94 ± 0.10; and the herbal solutions group 1.04 ± 0.10. The significance value of the coffee group is p=0.727 (p>0.05), the tea group is p=0.691 (p>0.05), and the herbal solutions group is p=1.61 (p>0.05). There was no significant effect of immersion time in coffee, tea, and herbal solutions on color stability of the HCAR denture base.