Abstract
The aim of this study was to investigate abrasion on human dentin after brushing with activated charcoal toothpastes. A self-designed brushing machine was used to brush five groups (Group A: Water, Group B: Sensodyne Pro Schmelz, Group C: Splat Blackwood, Group D: Curaprox Black is White, and Group E: Prokudent Black Brilliant) with electrically powered toothbrushes for 4 h. The abrasive dentin wear was calculated using profilometry data. Furthermore, thermogravimetric analyses and scanning electron microscopy were used to analyze the composition of the toothpastes. Mean dentin loss by brushing were (71 ± 28) µm (Splat Blackwood), (44 ± 16) µm (Curaprox Black is White), (38 ± 13) µm (Prokudent Black Brilliant), (28 ± 14) µm (Sensodyne Pro Schmelz), and (28 ± 13) µm (Water). Groups A/B/D/E and group C each lie in one subset, which is statistically different from the other subset according to a post hoc Tukey test (p = 0.05). Within the limitations, it can be concluded that the content of activated charcoal in charcoal toothpastes had little influence on the observed abrasive behavior, although one of the charcoal toothpastes showed the highest abrasion on dentin.
Highlights
Oral and dental health is a necessary component of a person’s overall health and well-being
It can be concluded that the content of activated charcoal in charcoal toothpastes had little influence on the observed abrasive behavior, one of the charcoal toothpastes showed the highest abrasion on dentin
The batch numbers and expiration dates were not provided consistently on toothpaste packaging; in order to avoid possible misinterpretation, we provide the data, as printed
Summary
Oral and dental health is a necessary component of a person’s overall health and well-being It includes sound teeth and supporting tissues. There are various manual and electric toothbrushes, as well as different toothpastes Marketing of these hygiene products includes public personalities (as from social media) and setting trends with new products. Among the current trends are toothpastes containing activated charcoal. The manufacturers of such toothpastes advertise a whitening effect that is supposed to make teeth appear whiter after repeated use, due to the removal of extrinsic stains. The authors were unaware of any supporting data for this claim Aside from this binding mechanism, increased abrasion might play a role for stain removal, which can imply unwanted abrasion of tooth substances
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