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"Penelitian ini bertujuan untuk mengetahui pengaruh pasta gigi yang mengandung charcoal terhadap kekasaran permukaan resin komposit nanohibrida. 24 spesimen resin komposit nanohibrida dikelompokkan menjadi 3 kelompok (n=8), masing-masing kelompok disikat dengan medium akuades, pasta gigi Formula Strong®, dan pasta gigi Formula Charcoal®. Penyikatan dilakukan sebanyak 5.000putaran kemudian dilanjutkan mencapai 10.000putaran. Ra diukur dengan Surface Roughness Tester. Data yang diperoleh dianalisa menggunakan Uji Repeated ANOVA dan One Way ANOVA. Ra setelah penyikatan dengan medium pasta gigi Formula Strong® dan Formula Charcoal® tidak menunjukkan perbedaan yang bermakna. Dapat disimpulkan, tidak ada pengaruh kandungan charcoal terhadap peningkatan Ra resin komposit nanohibrida.......This study verified the influence of toothpaste contains charcoal on the surface roughness of nanohybrid composite resin. Twenty-four specimens of nanohybrid composite resin are divided into three group (n=8) brushed with distilled water, Formula Strong®, and Formula Charcoal® toothpaste. Brushing were performed for 5.000rotates and continued until 10000rotates. Ra were determined by Surface Roughness Tester. The results were statistically analized using Repeated ANOVA and One Way ANOVA test. The roughness mean values after brushing with Formula Strong® and Formula Charcoal® showed no statistically significant difference. These result suggest that no effect of charcoal on surface roughness of nanohybrid composite resin."

"Latar Belakang: Perawatan restorasi resin komposit nanofilled dan nanohybrid memerlukan prosedur pemolesan untuk mengurangi tingkat kekasaran permukaan sehingga permukaan halus dan mengkilap. Tujuan: Membandingkan kekasaran permukaan resin komposit nanofilled dan nanohybrid setelah pemolesan menggunakan teknik multiple-step. Metode: 40 spesimen resin komposit yang dibagi ke dalam 2 kelompok 20 spesimen nanofilled Filtek Z350XT A dan 20 spesimen nanohybrid Filtek Z250XT B dipersiapkan kemudian dipoles. Setelah direndam dalam saliva buatan selama 24 jam, tingkat kekasaran permukaan diukur dengan surface roughness tester. Hasil: Hasil rerata tingkat kekasaran permukaan beserta standar deviasi kelompok A adalah 0,0967 m 0,0174 sedangkan kelompok B adalah 0,1217 m 0,0244. Secara statistik p=0,05 terdapat perbedaan signifikan antara kedua kelompok. Kesimpulan: Dapat disimpulkan bahwa tingkat kekasaran permukaan resin komposit nanofilled setelah pemolesan dengan teknik multiple-step lebih baik dibandingkan dengan nanohybrid. ......Background: Restorative treatment using nanofilled and nanohybrid composite should be finished and polished to reduce surface roughness and create smoother surface of the composite. Objective: To compare the surface roughness nanofilled and nanohybrid composite resin after polishing using multi step technique. Method: 40 composite resin specimens were divided into 2 groups 20 nanofilled specimens Filtek Z350XT A and 20 nanohybrid specimens Filtek Z250XT B was prepared and then polished. After immersion in artificial saliva for 24 hours, the surface roughness is measured with a surface roughness tester. ResultL The mean surface roughness results along with standard deviation of group A is 0,0967 m 0,0174 while group B is 0,1217 m 0,0244. Statistically with p 0.05 , there are significant differences between each group. Conclusion: Surface roughness of nanofilled composite resin after polishing with multiple step technique is better than nanohybrid."

"Penelitian ini bertujuan untuk mengetahui pengaruh perendaman minuman isotonik terhadap kekerasan permukaan resin komposit bulk-fill. Enam puluh spesimen Tetric N-Ceram Bulk-Fill berdiameter 6 mm dan tinggi 3 mm dibagi menjadi 2 kelompok perendaman yaitu dengan akuades (kontrol) dan minuman isotonik. Setiap kelompok direndam dengan lama perendaman 1 hari, 3 hari dan 7 hari. Kekerasan permukaan diuji menggunakan HMV-G Series Micro Vickers Hardness Tester.Hasil menunjukan terdapat perbedaan bermakna (p<0,05) antara perendaman akuades dan minuman isotonik uji Independent T-Test. Hasil menunjukkan bahwa terdapat perbedaan bermakna (p<0,05) antara semua kelompok perendaman minuman isotonik dengan lama perendaman 1 hari, 3 hari dan 7 hari dengan uji statistik One-Way Anova dan PostHoc Tukey HSD. Dapat disimpulkan bahwa minuman isotonik mempengaruhi kekerasan permukaan resin komposit bulk-fill.

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This study aims to determine the influence of isotonic drink immersion on surface hardness of bulk-fill composite. Sixty specimens of Tetric N-Ceram Bulk-Fill, 6 mm in diameter and 3 mm height were divided into two groups of storage media; deionized water (control) and isotonic drink. Each group was for 1 day, 3 days and 7 days. The surface hardness is measured using a HMV-G Series Micro Vickers Hardness Tester.

The results showed that there were significant differences (p <0.05) between immersion of control and isotonic drink with Independet T-Test. The results showed that there were significant differences (p <0.05) between all isotonic drink immersion groups with immersion duration of 1 day, 3 days and 7 days with One-Way Anova Test and Post Hoc Tukey HSD. It can be concluded that isotonic drinks affect the surface hardness of bulk-fill composite."