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Experimental Research Paper | Dentistry | Volume 15 Issue 6, June 2026 | Pages: 269 - 272 | Canada
Comparative Evaluation of the Whitening Efficacy and Abrasiveness of Charcoal-Containing and Conventional Toothpastes: an in Vitro Study
Abstract: Charcoal-containing toothpastes have become increasingly popular because of their claimed whitening effects and ability to remove extrinsic stains. This in vitro study aimed to evaluate and compare the whitening efficacy and abrasiveness of two commercially available charcoal toothpastes with a conventional non-whitening toothpaste. Thirty extracted human premolars were polished, sectioned, mounted, and immersed in a coffee solution at 37?C for six days to simulate staining. Baseline color and surface roughness measurements were obtained using a spectrophotometer and profilometer, respectively. The specimens were randomly allocated into three groups (n=10): Colgate Essentials Charcoal Teeth, Crest 3D White Charcoal Toothpaste, and Colgate Cavity Protection. Following 2,000 brushing cycles in a standardized brushing machine, post-brushing color and surface roughness measurements were recorded. Statistical analysis was performed using repeated-measures ANOVA and Bonferroni tests. All toothpastes produced significant increases in surface roughness and significant improvements in tooth color (p<0.05). However, no statistically significant differences were observed among the three groups regarding abrasiveness or whitening efficacy (p>0.05). The mean color change (?E) values for all groups were within clinically acceptable limits. Within the limitations of this study, charcoal-containing toothpastes demonstrated whitening and abrasive effects comparable to those of conventional toothpaste, with no evidence of superior whitening performance. Further clinical studies are recommended to assess their long-term effects under intraoral conditions.
Keywords: Cosmetic, charcoal, abrasion, whitening agent
How to Cite?: Dr. Gursewak Singh, "Comparative Evaluation of the Whitening Efficacy and Abrasiveness of Charcoal-Containing and Conventional Toothpastes: an in Vitro Study", Volume 15 Issue 6, June 2026, International Journal of Science and Research (IJSR), Pages: 269-272, https://www.ijsr.net/getabstract.php?paperid=SR26602042935, DOI: https://dx.dx.doi.org/10.21275/SR26602042935