Effect of Three In-Office Bleaching Systems on Color Stability of Nanofil Resin Composite Restorations | ||||
| Egyptian Dental Journal | ||||
| Article 3, Volume 67, Issue 4 - Serial Number 5, October 2021, Page 3685-3691 PDF (274.3 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2021.81003.1678 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Rabab Mehesen  
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| Lecturer of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Egypt | ||||
| Abstract | ||||
| Objective: To evaluate the influence of in-office bleaching on the color stability of dental restorative materials. Materials and Methods: Forty five discs (n = 15) measure 10 mm in diameter and 2 mm thick were prepared from nanofil composite (Filtek Z350, shade A2). Specimens were bleached as follow group A (Opalescence Boost), group B (Philips dash), and group C (Philips Zoom) according to the manufacturer’s instructions. The Commission Internationale de L’Eclairage (CIE ๐ฟ∗, ๐∗, ๐∗) system was chosen for image processing. Results: Statistical analysis was performed with one way ANOVA, and student’s test with a ๐ value of ≤ 0.05. The three bleaching materials showed no significant color changes of (Δ๐ธ) with clinical color change. The color parameters (๐ฟ∗, ๐∗, ๐∗) showed significant color changes. Conclusions: The bleaching gels had influences on color and whiteness of resin composites which clinically perceived. Clinical Significance: the existing composite restorations will not match the natural tooth color after bleaching, and their replacement may be required. | ||||
| Keywords | ||||
| Nanofil composite; In-office bleaching; Color change | ||||
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