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All Journal Sriwijaya Journal of Dentistry
Iskandar, Gavin Benedict
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Dentistry Health Professions Immunology & microbiology Materials Science & Nanotechnology Public Health

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The Effect of Gochujang Immersion on Color Change and Surface Roughness of Nanofilled Resin Composite Tjandrawinata, Rosalina; Iskandar, Gavin Benedict; Kurniawan, Florencia Livia; Margaretta, Dewi Liliany; Eddy, Eddy; Subrata, Aryadi
Sriwijaya Journal of Dentistry Vol. 6 No. 1 (2025): Sriwijaya Journal of Dentistry
Publisher : Dentistry Study Program, Faculty of Medicine Universitas Sriwijaya 

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32539/sjd.v6i1.77

Abstract

Background: Nanofilled resin composites are popular for their aesthetics but are vulnerable to discoloration and surface degradation, particularly in acidic environments. Gochujang, a Korean chili paste, is increasingly consumed and may affect dental restorations. Objectives: To evaluate the effect of gochujang sauce immersion on the color stability and surface roughness of nanofilled resin composite. Methods: Thirty-three Filtek™ Z350 XT A3 samples were divided into three groups (n=11): immediate control, distilled water control, and gochujang treatment. The treatment group was immersed daily in a 1:1 gochujang-distilled water solution (16 h) and distilled water (8 h) for four days at 37°C. Color change (ΔE) was measured with a VITA Easyshade V spectrophotometer; surface roughness (Ra) with a Taylor Hobson Surtonic S-100. Results: Gochujang immersion significantly increased color change (ΔE, p<0.001) and surface roughness (Ra, p=0.009) compared to controls between groups (p<0.05). Conclusion: Gochujang immersion adversely affects both color stability and surface roughness of nanofilled resin composites.
Co-Authors Dewi Liliany Margaretta, Dewi Liliany Eddy Eddy, Eddy Florencia Livia Kurniawan Rosalina Tjandrawinata Subrata, Aryadi