Research Article
Volume 19 Issue 6 - 2020
Effect of One-Step Polishing Systems and Bleaching on Gloss after Staining of Resin Composites
Fouad Salama1* and Zain Hafiz2
1Professor of Pediatric Dentistry, School of Dentistry, University of Detroit Mercy, USA
2Assistant Professor, Pediatric Dentistry, Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Saudi Arabia
*Corresponding Author: Fouad Salama, Professor of Pediatric Dentistry, School of Dentistry, University of Detroit Mercy, USA.
Received: April 07, 2020; Published: May 12, 2020


Aim: To evaluate the effects of two one-step polishing systems (OneGloss and PoGo) on gloss of two nanocomposite resin composites (Clearfil Majesty Esthetic and Filtek Z350 XT) before and after exposure to a staining solution. In addition, the effects of one office-bleaching agent (Ultradent Opalescence Boost PF 40%) on gloss of the resin composites after staining was evaluated.

Materials and Methods: Forty cylindrical specimens were prepared from each resin composite against Mylar strip (Mylar) and were tested for gloss (T1). The specimens were randomly assigned to four groups of 10 each. Each specimen was finished using a tungsten carbide finishing bur (Finish) and was measured for gloss (T2). Then, specimens were polished (Polish 1) with OneGloss or PoGo and was measured for gloss (T3). All specimens were stained (Stained) in coffee solution for 4 days and was measured for gloss (T4). Specimens were polished (Polish 2) with OneGloss or PoGo and then bleached (Bleach) with Ultradent Opalescence Boost PF 40% for 40 minutes and was measured for gloss, T5 and T6, respectively.

Results: There was a statistically significant differences (P < 0.05) between the two resin composites for gloss after Mylar strip. Also, after Polish 2, a statistically significant difference for gloss for both polishing systems OneGloss or PoGo on both resin composites was evident, with PoGo producing a higher gloss value. At Mylar strip and after Finish, there was no statistically significant difference in the two resin composites. Conclusion: PoGo polishing was less susceptible to staining and produced the highest gloss. Staining reduces the gloss for both resin composites. Re-polishing and bleaching do not increase gloss for either resin composite.

Clinical Significance: The use of PoGo polishing system made nanocomposite resins less susceptible to staining and produced the highest gloss. Re-polishing and bleaching do not increase gloss for either resin composites.

Keywords: Finishing/Polishing; Gloss; Nanofilled Resin Composite; In vitro; Esthetics


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Citation: Fouad Salama and Zain Hafiz. “Effect of One-Step Polishing Systems and Bleaching on Gloss after Staining of Resin Composites”. EC Dental Science 19.6 (2020): 09-17.

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