Micro computed tomography analysis of abrasivity of toothpaste tablets compared to conventional toothpaste

Authors

Mohammed Shaikh, Center for Dental Research, Loma Linda University School of Dentistry, Loma Linda, California, USA.Follow
Guada Lund, Center for Dental Research, Loma Linda University School of Dentistry, Loma Linda, California, USA.Follow
Julia Ko, Center for Dental Research, Loma Linda University School of Dentistry, Loma Linda, California, USA.
Gina Roque-Torres, Center for Dental Research, Loma Linda University School of Dentistry, Loma Linda, California, USA.
Udochukwu Oyoyo, Dental Education Services, Loma Linda University School of Dentistry, Loma Linda, California, USA.Follow
So Ran Kwon, Student Research Program, Division of General Dentistry, Loma Linda University School of Dentistry, Loma Linda, California, USAFollow

Document Type

Article

Publication Date

10-1-2021

Publication Title

American journal of dentistry

ISSN

0894-8275

Abstract

PURPOSE: To evaluate with microCT dentin and enamel abrasion depth caused by toothpaste tablets when compared to conventional toothpastes. METHODS: Dentin (N= 64) and enamel blocks (N=64) were randomized into four experimental groups of 16 specimens each for dentin and enamel. CP: Colgate Cavity Protection, served as the low abrasive toothpaste; AW: Colgate Total Advanced Whitening was used to represent a highly abrasive toothpaste. Two different types of toothpaste tablets were used. DT: Denttabs and BT: Bite tabs. To prepare the slurries, 40 mL of water was added to 25 g of each toothpaste and 4.4 g of each toothpaste tab. Blocks were brushed for a total of 10,000 and 40,000 strokes for dentin and enamel, respectively following ISO standard 11609. On completion of brushing, specimens were scanned with a microCT system. Tomographic 3D reconstruction followed by abrasion depths measurements were performed. Kruskal-Wallis procedure tested abrasion depths among the different groups. Tests of hypotheses were two-sided with an alpha level at 0.05. RESULTS: There was a statistically significant difference in dentin abrasion depth among the groups (P< 0.001). The mean dentin/enamel abrasion depths in microns were 25.3/4.4, 36.8/4.4, 66.8/3.0, and 230.3/15.5 for DT, BT, CP, and AW respectively. Dentin and enamel abrasion depth of AW was the highest and was different from all other groups after multiple comparisons (P< 0.05). CLINICAL SIGNIFICANCE: Dentin abrasivity of toothpaste tabs is negligible as determined with microCT.

Volume

34

Issue

5

First Page

235

Last Page

239

PubMed ID

34689444

Recommended Citation

Shaikh, Mohammed; Lund, Guada; Ko, Julia; Roque-Torres, Gina; Oyoyo, Udochukwu; and Kwon, So Ran, "Micro computed tomography analysis of abrasivity of toothpaste tablets compared to conventional toothpaste" (2021). Loma Linda University Faculty Publications. 314.
https://scholarsrepository.llu.edu/fac_pubs/314