IADR Abstract Archives
Extrinsic Stain Removal: A Power Toothbrush vs. Manual Toothbrush Study
Objectives: To evaluate in-vitro stain removal of three different power-toothbrushes versus a standard manual toothbrush.
Methods: 200 extracted human teeth samples were stained in 5 different solutions (n=40 per group): Group 1: No Stain, Group 2: Coffee, Group 3: Red Wine, Group 4: Chlorhexidine, and Group 5: Green Tea. Samples were brushed with Toothbrush A: Rotadent® ProCare (DenMat), Toothbrush B: Sonicare 2 Series (Philips), Toothbrush C: Oral-B Pro 3000 (Oral-B), or Toothbrush D: Standard Manual (ADA) after short-term (5-days) and again after long-term (21-days) staining (Figure1). To standardize brushing, each toothbrush was placed into a holding apparatus and samples were brushed for 15s. Angle of incidence for brushing was perpendicular to the tooth surface at 180o with pressure force maintained at 200g + 10g, ideal tooth brushing force.
An Olympus® Crystaleye Spectrophotometer was used to quantify L*, a*, and b* values. Comparisons of the toothbrushes were performed using a One-Way ANOVA. Post-hoc pair-wise comparisons were performed using Tukey’s HSD to adjust for multiple comparisons. All statistical tests were two-sided. P-values <.05 were considered statistically significant.
Results: Toothbrush A (ΔLcoffee*=83.72, ΔLredwine*=83.93), Toothbrush B (ΔLcoffee*=79.37, ΔLredwine*=81.01), and Toothbrush C (ΔLcoffee*=78.42, ΔLredwine*=79.53) brighten teeth stained by coffee or red wine long-term more than Toothbrush D (ΔLcoffee*=75.84, ΔLred wine*=67.61) (Table1). Additionally, Toothbrush A (ΔLcoffee*=81.61, ΔLredwine*=82.75, ΔLchlorhexidine*=78.98) and Toothbrush C (ΔLcoffee*=77.04, ΔLredwine*=77.45, ΔLchlorhexidine*=79.47) brighten teeth stained by coffee, red wine, and chlorhexidine short-term more than Toothbrush D (ΔLcoffee*=75.38, ΔLredwine*=67.54, ΔLchlorhexidine*=72.71).
Conclusions: This study demonstrates that the three power toothbrushes tested are most effective on brightening teeth after long-term coffee and red wine staining, and that power toothbrushes A and C are most effective on brightening teeth after short-term coffee, red wine, and chlorhexidine staining when compared to a standard manual toothbrush.
Methods: 200 extracted human teeth samples were stained in 5 different solutions (n=40 per group): Group 1: No Stain, Group 2: Coffee, Group 3: Red Wine, Group 4: Chlorhexidine, and Group 5: Green Tea. Samples were brushed with Toothbrush A: Rotadent® ProCare (DenMat), Toothbrush B: Sonicare 2 Series (Philips), Toothbrush C: Oral-B Pro 3000 (Oral-B), or Toothbrush D: Standard Manual (ADA) after short-term (5-days) and again after long-term (21-days) staining (Figure1). To standardize brushing, each toothbrush was placed into a holding apparatus and samples were brushed for 15s. Angle of incidence for brushing was perpendicular to the tooth surface at 180o with pressure force maintained at 200g + 10g, ideal tooth brushing force.
An Olympus® Crystaleye Spectrophotometer was used to quantify L*, a*, and b* values. Comparisons of the toothbrushes were performed using a One-Way ANOVA. Post-hoc pair-wise comparisons were performed using Tukey’s HSD to adjust for multiple comparisons. All statistical tests were two-sided. P-values <.05 were considered statistically significant.
Results: Toothbrush A (ΔLcoffee*=83.72, ΔLredwine*=83.93), Toothbrush B (ΔLcoffee*=79.37, ΔLredwine*=81.01), and Toothbrush C (ΔLcoffee*=78.42, ΔLredwine*=79.53) brighten teeth stained by coffee or red wine long-term more than Toothbrush D (ΔLcoffee*=75.84, ΔLred wine*=67.61) (Table1). Additionally, Toothbrush A (ΔLcoffee*=81.61, ΔLredwine*=82.75, ΔLchlorhexidine*=78.98) and Toothbrush C (ΔLcoffee*=77.04, ΔLredwine*=77.45, ΔLchlorhexidine*=79.47) brighten teeth stained by coffee, red wine, and chlorhexidine short-term more than Toothbrush D (ΔLcoffee*=75.38, ΔLredwine*=67.54, ΔLchlorhexidine*=72.71).
Conclusions: This study demonstrates that the three power toothbrushes tested are most effective on brightening teeth after long-term coffee and red wine staining, and that power toothbrushes A and C are most effective on brightening teeth after short-term coffee, red wine, and chlorhexidine staining when compared to a standard manual toothbrush.
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