Efficiency of activated charcoal powder in stain removal and effect on surface roughness compared to whitening toothpaste in resin composite: In vitro study

Abstract

Objectives To evaluate the efficacy of activated charcoal powder on extrinsic stain removal and its effect on surface roughness in stained resin composite in comparison with whitening toothpaste. Materials and methods Sixty-six disk-shaped composite specimens were fabricated using a custom-made ring mold. The specimens were stained using a coffee solution and stored in distilled water at 37 °C. The specimens were divided randomly into two groups, Group 1: Thirty-Three disks were subjected to brushing using whitening toothpaste (Control), and Group 2: Thirty-Three disks were subjected to brushing using charcoal powder. Specimens were evaluated for surface color and surface roughness at baseline after staining protocol and after the brushing process. Results Changes in color and surface roughness were highly significant (p < 0.0001) after brushing with activated charcoal powder and whitening toothpaste. However, no significant differences were found in color (p = 0.90) and surface roughness (p = 0.33) between the two bleaching techniques. Conclusion The changes in the color and surface roughness of resin composite was significant after brushing with activated charcoal powder and whitening toothpaste. However, there were no significant differences between the two techniques.

Evaluating the Effect of Active Charcoal-Containing Toothpaste on Color Change, Microhardness, and Surface Roughness of Tooth Enamel and Resin Composite Restorative Materials

“…Although the whitening effect of charcoal was confirmed in this study, some authors have questioned the whitening efficacy of charcoal toothpastes [ 29 ] or even have rejected it [ 24 , 30 ]. For instance, Febriani et al [ 31 ] showed activated charcoal could absorb positively charged pigments, or it may improve tooth color as efficiently as hydrogen peroxide-containing toothpastes [ 26 ], whereas some authors reported no color change after using charcoal-containing toothpaste and powder [ 24 , 30 ]. A previous study reported the lowest bleaching rate for the charcoal-containing toothpaste in comparison with blue covarine, hydrogen peroxide, and other abrasives [ 8 ].…”

“…Slurry of water and toothpaste with a ratio of 3 : 1 (by weight) was prepared and purred in the brushing container of the brushing machine [ 10 , 24 , 26 ]. Specifically, 1 g of dentifrice was mixed with 3 ml of water and was poured above the samples to simulate brushing in an aqueous environment.…”

Evaluation of the Efficacy of Low-Particle-Size Toothpastes against Extrinsic Pigmentations: A Randomized Controlled Clinical Trial

“…Previous studies have been conducted in the literature to evaluate the effects on stains by both crystal- [ 26 , 27 ] and charcoal-based toothpastes [ 28 , 29 ], highlighting positive results for the two methodologies. The current research was aimed at comparing both agents at the same time.…”

The Effect of Beverages and Polishing on Color Change of Different Temporary Prosthetic Materials: In Vitro Study

“…To prepare the coffee solution, 2 g coffee granules were added to 200 ml of boiling water. The solution was ready for use after a waiting period of 10 minutes to achieve drinking temperature 17 . Other solutions were also prepared in a 200 ml cup size.…”