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. 2021 Aug 20;9(8):97.
doi: 10.3390/dj9080097.

Abrasion Behaviour of Different Charcoal Toothpastes When Using Electric Toothbrushes

Andreas Greuling  1 , Johanna Maria Emke  1 , Michael Eisenburger  1
Affiliations

Abrasion Behaviour of Different Charcoal Toothpastes When Using Electric Toothbrushes

Andreas Greuling et al. Dent J (Basel). .

Abstract

Objectives: The purpose of this in vitro study was to compare the abrasion behaviour of different charcoal toothpastes when brushing with electric toothbrushes on human enamel.

Materials and methods: A self-designed brushing machine was built using six commercially available electric toothbrushes in abrasion chambers. Each chamber was constantly supplied with a toothpaste-water mix. Pieces of human enamel, which were embedded in PMMA, were brushed for 4 h. Before and after brushing, profilometer measurements were performed in order to determine the substance loss due to brushing.

Results: The following calculated mean removal values (mean ± SD) were found: (4.6 ± 0.6) µm (Group C: Splat Blackwood), (3.2 ± 0.9) µm (Group D: Curaprox Black is White), (2.3 ± 0.7) µm (Group B: Sensodyne Pro Schmelz), (1.7 ± 0.6) µm (Group A: Water), (1.4 ± 0.6) µm (Group E: Prokudent Black Brilliant). A post hoc Tukey HSD test (p = 0.05) showed that the results for Group A/B/E, Group B/D and Group C each lie within subsets that differ statistically significantly from the other subsets.

Conclusions: Within the limitations of this in vitro study, it can be stated that some charcoal toothpastes lead to significantly higher abrasion on human enamel, when brushing with electric brushes.

Clinical relevance: As low-abrasion toothpaste is generally advisable, and some charcoal toothpastes should be viewed critically with regard to their abrasive properties.

Keywords: abrasion; brushing; charcoal; tooth wear; toothbrush.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Study design.
Figure 2
Figure 2
Custom-built automated tooth-brushing machine used in this study.
Figure 3
Figure 3
Profilometer height map of embedded enamel sample before and after brushing (exemplarily). The red dots indicate the points used for a plane-level correction. The cut marks in the reference area were used as landmarks for a slight x/y shift (see Section 2.3).
Figure 4
Figure 4
Calculated enamel removal after brushing with different toothpastes. N = 9 for all groups. Groups are A: water, B: Sensodyne Pro Schmelz, C: Splat Blackwood, D: Curaprox Black is White, E: Prokudent Black Brilliant.
See this image and copyright information in PMC

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