Perbedaan pengaruh pasta gigi charcoal dan non-charcoal terhadap kekasaran permukaan resin komposit nanohibrid : kajian berdasarkan waktu penyikatan (Laporan Penelitian)
L atar belakang: Activated charcoal, silika, hydrated silica, dan kalsium karbonatmerupakan jenis bahan abrasif yang terdapat dalam pasta gigi. Bahan abrasifberfungsi untuk membersihkan gigi dan menghilangkan noda. Proses penyikatanmenggunakan pasta gigi dapat meningkatkan kekasaran permukaan bahan restorasi.Resin komposit nanohibrid sering digunakan pada restorasi veneer dan perlu dijagakebersihannya. Tujuan: Untuk mengetahui perbedaan pengaruh pasta gigicharcoal dan non-charcoal terhadap kekasaran permukaan resin kompositnanohibrid. Metode: Sampel resin komposit nanohibrid sebanyak 15 sampel dibagisecara acak menjadi 3 kelompok (n=5) yaitu kelompok A (akuades), kelompok B(pasta gigi charcoal), dan kelompok C (pasta gigi non-charcoal). Nilai kekasaranawal pada setiap kelompok diukur dengan surface roughness tester, kemudiansetiap sampel disikat selama 2, 4, 6, dan 12 menit. Kekasaran permukaan diukurkembali setiap durasi penyikatan. Hasil: Hasil ANOVA 2 jalur menunjukkanbahwa bahan (p=0,000) dan waktu penyikatan (p=0,000) berpengaruh secarasignifikan terhadap kekasaran permukaan resin komposit nanohibrid. Hasil ujiPost-Hoc menunjukkan bahwa pasta gigi charcoal dengan non-charcoal tidakterdapat perbedaan bermakna (p=0,441). Kesimpulan: Penggunaan pasta gigicharcoal dan non-charcoal terhadap permukaan restorasi komposit nanohibridmenunjukkan nilai kekasaran yang hampir sama. Semakin lama durasi penyikatan,maka semakin kasar permukaan resin komposit nanohibrid.Kata kunci : bahan abrasif, charcoal, kekasaran permukaan, pasta gigi, resinkomposit nanohibrid, waktu penyikatan
B ackground: Activated charcoal, silica, hydrated silica, and calcium carbonate aretypes of abrasive material that found in toothpaste. The function of abrasivematerial is to clean teeth and remove stains. The brushing process can increase thesurface roughness of restoration materials. Nanohybrid composite resin iscommonly used for veneer restorations and it is important to maintain its hygiene.Objective: To determine differences between charcoal and non-charcoal toothpasteon the surface roughness of nanohybrid composite resins. Methods: 15 samples ofnanohybrid composite resin were divided randomly into 3 groups (n=5), whichwere group A (distilled water), group B (charcoal toothpaste), and group C (noncharcoal toothpaste). The initial roughness of each group was measured by surfaceroughness tester, then each sample was brushed for 2, 4, 6, and 12 minutes. Thesurface roughness of the samples was measured again every brushing duration.Results: Two way ANOVA showed that the materials (p=0,000) and the brushingtime (p=0,000) were significantly influenced the surface roughness of thenanohybrid composite resin. Post-Hoc test results showed that charcoal with noncharcoal toothpaste had no significant difference (p=0,441). Conclusion: The useof charcoal and non-charcoal toothpaste on the surface of nanohybrid compositerestorations showed almost the same roughness value. The longer the brushingtime, the higher the surface roughness of nanohybrid composite resin.