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Abstrak :
Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi hidrogen peroksida 40 terhadap kerentanan perubahan warna resin komposit nanohibrida oleh minuman berkarbonasi. Tiga puluh spesimen resin komposit nanohibrida berbentuk silinder diameter 6mm x ketebalan 2mm dibagi menjadi tiga kelompok; Coca-Cola, Fanta Strawberry, dan Sprite n=10. Seluruh spesimen direndam dalam minuman masing-masing selama 7 hari, diaplikasikan hidrogen peroksida 40, dan direndam kembali selama 7 hari. Pengukuran warna dilakukan sebanyak empat kali dengan Colorimeter. Nilai perubahan warna kemudian dihitung. Data dianalisis menggunakan uji statistik Paired-Samples T Test dan One-Way ANOVA. ...... This study aims to analyze the effect of 40 hydrogen peroxide application on nanohybrid composite resin staining susceptibility by carbonated drinks. Thirty cylindrical specimens 6mm diameter x 2mm depth of nanohybrid composite resin were divided into 3 groups Coca Cola, Fanta Strawberry, and Sprite n 10. All specimens were immersed in each drinks for 7 days, bleached with 40 hydrogen peroxide, and re immersed for 7 days. Color measurement was done four times using a Colorimeter. Color differences between each measurement were calculated. Data were analyzed statistically by Paired Samples T Test and One Way ANOVA.