Relative abrasive potential of silica-based conventional and tablet dentifrices on enamel and dentin.

Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE

Original Publication: San Francisco, CA : Public Library of Science

Dentin*/drug effects ; Dentin*/chemistry ; Dental Enamel*/drug effects ; Dental Enamel*/chemistry ; Dentifrices*/chemistry ; Toothbrushing* ; Silicon Dioxide*/chemistry; Cattle ; Animals ; Tooth Abrasion/etiology ; Toothpastes/chemistry ; Tablets

Objectives: This in vitro study aimed to investigate the toothbrushing wear on both enamel and dentin surfaces of reference and commercially available dentifrices.
Methods: Bovine enamel and dentin blocks were initially polished and embedded within a resin composite in square shapes (10×8×6 mm3). Employing toothbrushes equipped with nylon bristles, a toothbrushing machine was utilized, subjecting dentin specimens (n = 36) to 500 brush cycles and enamel samples to 5000 brush cycles (n = 36). Before and after the brushing simulation (2.45-N, 180 strokes per minute), an advanced contact profilometer was employed to measure the abraded depth. The wear rates were analyzed by using One-way ANOVA with two-sided Dunnett's multiple comparisons with a control (water).
Results: Significant variations were observed among the tested toothpaste formulations, particularly in dentin wear, where Sident and Prodent showed notably higher values (7.30 μm and 9.67 μm, respectively) compared to the water control group (0.79 μm). Prodent also induced the highest enamel wear (2.64 μm) among the toothpaste formulations, while water, Zendium, and Denttabs exhibited comparatively lower enamel wear values. Statistical analysis using One-way ANOVA with two-sided Dunnett's multiple comparisons against the control (water) confirmed these differences.
Significance: Toothbrushing with water causes minimal wear on enamel and dentin tissues, suggesting the predominant effect of three-body wear when using an abrasive medium. Comparing the standard references for dentifrice abrasives, Sident and Sylodent exhibit similar wear rates, making them reliable choices for in-vitro tests. When employed in a similar frequency, the wear rate of commercial toothpaste depends more on its composition than its form (paste or tablets).
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2024 Kasi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

Int J Prosthodont. 2000 Mar-Apr;13(2):101-7. (PMID: 11203616)
J Contemp Dent Pract. 2023 Oct 1;24(10):757-760. (PMID: 38152908)
J Dent Biomech. 2014 Feb 06;5:1758736014520809. (PMID: 24550998)
J Clin Dent. 2007;18(1):12-6. (PMID: 17410950)
Chemosphere. 2022 Jun;296:133976. (PMID: 35176298)
Arch Oral Biol. 2023 Apr;148:105657. (PMID: 36827929)
Monogr Oral Sci. 2013;23:100-7. (PMID: 23817063)
Int J Dent Hyg. 2011 Nov;9(4):284-90. (PMID: 21545405)
J Dent. 2023 May;132:104502. (PMID: 36997084)
Braz Oral Res. 2014;28 Spec No:1-7. (PMID: 24554097)
Int Dent J. 2024 Oct;74(5):999-1005. (PMID: 38461097)
Am J Dent. 2023 Jun;36(3):156-160. (PMID: 37364194)

0 (Dentifrices)
7631-86-9 (Silicon Dioxide)
0 (Toothpastes)
0 (Tablets)

Date Created: 20241231 Date Completed: 20241231 Latest Revision: 20250104

20250104

PMC11687757

10.1371/journal.pone.0313637

39739722