Effect of polishing paste on color stability of nanohybrid and spherical filler composite after immersion in black tea: a laboratory experiment

Widharaniputri Yasminadani; Ratna Meidyawati; Citra Kusumasari

doi:10.24198/jkg.v36i3.57127

Effect of polishing paste on color stability of nanohybrid and spherical filler composite after immersion in black tea: a laboratory experiment

Widharaniputri Yasminadani, Ratna Meidyawati, Citra Kusumasari

Abstract

Introduction: The characteristics of the composite filler directly affect the surface roughness and susceptibility to extrinsic staining. An esthetic composite restoration depends on the color stability, that can be attributed to the low surface roughness. Therefore, it is crucial to apply appropriate polishing procedures. This study aim to analyze the effect of polishing paste on color stability of nanohybrid and spherical filler composite after immersion in black tea: a laboratory experiment. Method: Forty-two cylinder-shaped with a diameter of 6mm and a thickness of 2mm were prepared from nanohybrid (Filtek Z250XT) and spherical filler composite resin (Palfique Omnichroma), then divided into four sub-groups subjected to different polishing treatments and two control sub-groups without polishing. The groups were as follows: nanohybrid without polishing (N-K), spherical filler without polishing (SF-K), nanohybrid polished with discs (N-Pd), spherical filler polished with discs (SF-Pd), nanohybrid polished with discs followed by paste (N-PdP), and spherical filler polished with discs followed by paste (SF-PdP). Specimens were immersed in black tea for 7 days. The initial and final color were measured using a colorimeter. Data were analyzed using One-Way ANOVA and Tamhane's Post Hoc test. Results: Immersion in black tea solution resulted in clinically unacceptable color changes, except for the N-PdP group. The N-K group exhibited the highest ∆E* value, while the N-PdP group showed the smallest ∆E* value. Conclusion: The use of polishing paste reduced color changes in composite resin due to black tea. Nanohybrid composite resin polished with a disc followed by paste demonstrates better resistance to color changes.

Pengaruh pasta poles terhadap stabilitas warna komposit dengan filler nanohybrid dan spherical setelah perendaman di dalam teh hitam: eksperimental laboratoris

Pendahuluan: Karakteristik filler resin komposit secara langsung mempengaruhi kekasaran permukaan dan kerentanan terhadap pewarnaan ekstrinsik. Restorasi resin komposit yang estetik bergantung pada stabilitas warna, yang berkaitan dengan kehalusan permukaan. Oleh karena itu, penerapan pemolesan yang tepat sangatlah penting dalam restorasi resin komposit. Penelitian ini bertujuan untuk menentukan pengaruh pasta poles terhadap stabilitas warna komposit nanohybrid dan spherical setelah perendaman dalam teh hitam. Metode: Empat puluh dua spesimen berbentuk silinder dengan diameter 6mm dan tebal 2mm dipersiapkan dari resin komposit nanohybrid (Filtek Z250XT) dan spherical filler (Palfique Omnichroma) kemudian dibagi ke dalam 4 subkelompok yang diberikan perlakuan pemolesan berbeda dan 2 sub kelompok kontrol tanpa pemolesan. Kelompok tersebut adalah: nanohybrid tanpa pemolesan (N-K), spherical filler tanpa pemolesan (SF-K), nanohybrid dipoles dengan disc (N-Pd), spherical filler dipoles dengan disc (SF-Pd), nanohybrid dipoles dengan disc diikuti pasta (N-PdP), dan spherical filler dipoles dengan disc diikuti pasta (SF-PdP). Spesimen direndam dalam teh hitam selama 7 hari. Warna awal dan akhir diukur menggunakan colorimeter. Data dianalisis menggunakan uji One-Way ANOVA dan Post Hoc Tamhane. Hasil: Perendaman dalam teh hitam menghasilkan perubahan warna yang tidak dapat diterima secara klinis, kecuali pada kelompok N-PdP. Kelompok N-K menunjukkan nilai ∆E* terbesar, sementara kelompok N-PdP menunjukkan nilai ∆E* terkecil. Simpulan: Penggunaan pasta poles mengurangi perubahan warna resin komposit akibat teh hitam. Resin komposit nanohybrid yang dipoles menggunakan disc diikuti pasta menunjukkan ketahanan yang lebih baik terhadap perubahan warna.

Keywords

diamond polishing paste, color change, nanohybrid, spherical filler, black tea

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DOI: https://doi.org/10.24198/jkg.v36i3.57127