Onwubu SC, Mdluli PS, Singh S, Nyembe S, Thakur R. Evaluating the Abrasivity of a Nanosized Eggshell-Titanium Dioxide on Tooth Enamel Using Atomic Force Microscopy.
Eur J Dent 2020;
14:598-604. [PMID:
32777839 PMCID:
PMC7535973 DOI:
10.1055/s-0040-1714172]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objectives
This study aimed to evaluate nanosized eggshell–titanium dioxide (EB@TiO
2
) abrasiveness in comparison with calcium carbonate and hydrated silica-containing toothpaste.
Material and Methods
Thirty-five bovine tooth enamels were prepared, and specimens randomly assigned to a sample group of five (
n
= 7), namely, Colgate regular, Colgate pro-relief, Sensodyne rapid relief, Sensodyne repair, and EB@TiO
2
. Half of the enamel surface was brushed with each respective sample group, while the other half was covered with a tap.
Statistical Analysis
The mean roughness value (Ra) of the brushed and covered halves were measured using an atomic force microscope (AFM). To assess the surface morphology and changes, a scanning electron microscope (SEM) was performed. Using pair sample test and ANOVA, the Ra for the entire specimens were analyzed. A Bonferroni correction was used to identify the mean differences among the five groups (α=.05).
Results
The findings from this analysis show that all the tested toothpaste abraded the enamel significantly (
p
< 0.05). The abrasive value contained in toothpaste comprising calcium carbonate was lower than the silica toothpaste hydrated.
Conclusion
Overall, Colgate regular had the lowest toothpaste abrasivity, followed by EB@TiO2, while Sensodyne rapid relief had the most enamel wear. The prominent feature of this study suggests that EB@TiO2 is suitable for oral use, as its abrasivity is comparable with calcium carbonate-containing toothpaste.
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