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All Journal Padjadjaran Journal of Dentistry Cakradonya Dental Journal
Sri Fitriyani
Department of Dental Materials, Faculty of Dentistry, Universitas Syiah Kuala
Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Studi Pelepasan Monomer Sisa Dari Resin Akrilik Heat Cured Setelah Perendaman Dalam Akuades Diansari, Viona; Fitriyani, Sri; Haridhi, Fazliyanda Maria
Cakradonya Dental Journal Vol 10, No 1 (2018): Februari 2018
Publisher : FKG Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/cdj.v10i1.10466

Abstract

Resin akrilik heat cured merupakan campuran monomer metil metakrilat dan polimer polimetil metakrilat yang dipolimerisasi dengan cara pemanasan. Proses polimerisasi tidak sempurna dan menghasilkan monomer sisa. Kandungan monomer sisa yang tinggi dapat menyebabkan iritasi atau alergi terhadap jaringan rongga mulut. Pengurangan jumlah monomer sisa dapat dilakukan dengan perendaman resin akrilik heat cured dalam akuades. Penelitian ini bertujuan untuk mengetahui pengaruh durasi perendaman resin akrilik heat cured dalam akuades terhadap pelepasan monomer sisa. Penelitian ini menggunakan resin akrilik QC-20 berbentuk disk (ukuran d = 50 mm, t = 3 mm) sebanyak 10 spesimen direndam dalam akuades dengan durasi 1, 2, 3, 4, 5, 6, 7, dan 8 hari pada suhu 37C. Perendaman setiap 24 jam dilakukan pergantian akuades (tiap perlakuan menggunakanspesimen yang sama). Pengukuran jumlah monomer sisa dilakukan setiap 24 jam menggunakan alat Spektrofotometer UV-VIS. Perhitungan jumlah monomer sisa dalam bentuk konsentrasi menggunakan persamaan garis lurus y = 9.2543x - 0.0027. Persamaan garis lurus didapat dari kurva absorban dan konsentrasi larutan standar metil metakrilat 0.1%, 0.075%, 0.050%, 0.025%, dan 0.010%. Analisis statistik data hasil penelitian dilakukan dengan uji Friedman dan uji lanjut Wilcoxon (p0.05). Hasil uji Friedman menunjukkan bahwa terdapat perbedaan bermakna (p=0.000) antara durasi perendaman terhadap jumlah monomer sisa. Hasil uji lanjut Wilcoxon menunjukkan bahwa terdapat perbedaan bermakna pada perendaman resin akrilik selama 24 jam (hari ke-1) dibandingkan dengan hari berikutnya (perendaman hari ke-1 melepaskan monomer sisa dengan jumlah tertinggi). Perendaman antara hari ke-6, 7, dan 8 terdapat perbedaan yang tidak bermakna (uji Wilcoxon p0.05). Dapat disimpulkan bahwa terdapat pengaruh durasi perendaman resin akrilik heat cured dalam akuades terhadap pelepasan jumlah monomer sisa.
Effect on color stability and surface roughness of nanofiller dental composite after soaking in Bidara leaf (Ziziphus mauritiana Lam) ethanol extract: an experimental study fitriyani, Sri; Nazilla, Cut Syahla; sundari, Iin; Diansari, Viona; Subhaini, Subhaini; Ningsih, Diana Setya; Rahmayani, Liana; Qamaruzzaman, Jasmina Binti
Padjadjaran Journal of Dentistry Vol 37, No 3 (2025): November 2025
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol37no3.61351

Abstract

Introduction: Dental composite resins offer aesthetic appeal and high wear resistance; however, their physical properties may diminish after exposure to colored foods or mouthwashes. We explore Bidara leaf (Ziziphus mauritiana Lam) extract as an alternative mouthwash due to its rich content of bioactive compounds. The study aims to analyze the color change and surface roughness of nanofiller composite resins after immersion in Bidara leaf ethanol extract. Methods: This research was an experimental study. The resin composite samples were divided into four groups; each group consisted of 3 specimens (n=3): Group 1 (negative control) immersed in distilled water; Group 2 (positive control) immersed in 0.2% chlorhexidine; and Groups 3 and 4 soaked in 4.5% and 20% ethanol extracts of Bidara leaf, respectively. The specimens were cylindrical with a diameter of 10 mm and a thickness of 2 mm. All specimens were the same size, shape, and color, with flat surfaces and no cracks or stains. Samples were immersed for two minutes daily over one month. Color changes were analyzed using a stereomicroscope and the CIELab color system with Adobe Photoshop, while surface roughness was assessed using atomic force microscopy (AFM). Results: Color changes show ΔE>3.3 indicating a visible difference. The most significant color change occurrs in Group 4, followed by Groups 3, 2, and 1. One-way ANOVA shows a statistically significant color change (p<0.05). Surface roughness also increases, with Group 4 (0.138±0.066 μm) displaying the greatest roughness compared to Group 3 (0.122±0.061 μm), Group 2 (0.122±0.076 μm), and Group 1 (0.054±0.012 μm).  Based on the one-way ANOVA test, the results show no significant differences (p>0.05) between the pre- and post-immersion. Conclusion: Although changes in surface roughness were not statistically significant, the ethanol extract of Bidara leaf influences the color and surface roughness of the nanofiller dental composite.
Co-Authors Diana Setya Ningsih, Diana Setya Haridhi, Fazliyanda Maria Iin Sundari Liana Rahmayani Nazilla, Cut Syahla Poppy Andriany Qamaruzzaman, Jasmina Binti Rizki Dumna, Rizki Subhaini, Subhaini Viona Diansari