An 8-week randomized controlled trial comparing the effect of a novel oscillating-rotating toothbrush versus a manual toothbrush on plaque and gingivitis.

PURPOSE: To compare a novel oscillating-rotating (O-R) electric rechargeable toothbrush with micro-vibrations (Oral-B iO) to a manual brush for gingivitis and plaque reduction. METHODS: Adult subjects with gingivitis and plaque were randomized to use either the O-R or the manual toothbrush with standard fluoride dentifrice twice daily. Efficacy was assessed at baseline, week 1, and week 8 using the Rustogi Modification of the Navy Plaque Index (RMNPI), Modified Gingival Index (MGI), and Gingival Bleeding Index (GBI). Gingivitis status ('healthy'/'not healthy') was also assessed, per the American Academy of Periodontology/European Federation of Periodontology criteria. RESULTS: One hundred and ten subjects were enrolled and completed the randomized controlled trial. The baseline mean number (SD) of bleeding sites for all subjects was 32.11 (16.703). At week 8, 82% of subjects using the O-R toothbrush were categorized as 'healthy' (<10% bleeding sites), versus 24% of subjects using the manual brush (P < 0.001). Subjects using the O-R toothbrush showed statistically significantly greater reductions (P < 0.001) in the number of bleeding sites, GBI scores and MGI scores versus those using a manual toothbrush as early as 1 week and throughout the 8-week study. The O-R toothbrush also provided statistically significantly greater reductions (P < 0.001) in all plaque measures, including sub-regions, versus the manual toothbrush after a single brushing and at weeks 1 and 8. CONCLUSIONS: The novel O-R electric toothbrush with micro-vibrations provided statistically significantly greater plaque and gingivitis reductions versus a manual toothbrush, with performance benefits demonstrated after a single brushing and continuing throughout the 8-week study.

Evaluation of an oscillating-rotating toothbrush with micro-vibrations versus a sonic toothbrush for the reduction of plaque and gingivitis: results from a randomized controlled trial.

PURPOSE: To compare a novel oscillating-rotating (O-R) electric rechargeable toothbrush with micro-vibrations to a marketed premium sonic toothbrush for reduction of gingivitis and plaque in an 8-week randomized controlled trial. METHODS: Adult subjects with evidence of gingivitis and plaque were randomized to use either the novel O-R brush (Oral-B iO) or the sonic brush with sodium fluoride dentifrice twice daily. Assessments at baseline and week 8 included the Rustogi Modification of the Navy Plaque Index (RMNPI), Modified Gingival Index (MGI), and Gingival Bleeding Index (GBI). Gingivitis status ('healthy'/'not healthy') was classified per the American Academy of Periodontology/European Federation of Periodontology criteria. RESULTS: Ninety subjects were randomized to treatment and completed the study. Subjects had a mean age of 49.2 years; 68 were females. At baseline, the mean number (standard deviation [SD]) of bleeding sites for all subjects was 32.8 (16.43). At week 8, the O-R brush group had a higher percentage of 'healthy' gingiva subjects than the sonic brush group (84% vs. 53% P = 0.003). In the between-group comparisons at week 8, the O-R brush group showed statistically significantly greater reductions (P < 0.001) compared to the sonic group for MGI, GBI, and number of bleeding sites. The O-R brush group also had statistically significantly greater plaque removal (P ≤ 0.011) than the sonic brush group for whole mouth plaque as well as plaque in the proximal regions and along the gingival margin. CONCLUSIONS: The novel O-R electric toothbrush with micro-vibrations provided greater plaque and gingivitis reductions than the marketed premium sonic toothbrush over 8 weeks.

A randomized clinical trial evaluating gingivitis and plaque reduction of an oscillating-rotating power brush with a new brush head with angled bristles versus a marketed sonic brush with self-adjusting technology.

PURPOSE: To compare the efficacy of an oscillating-rotating power toothbrush with a novel brush head incorporating angled CrissCross bristles (Oral-B Pro 7000 SmartSeries and Oral-B CrossAction brush head) versus a marketed sonic toothbrush (Colgate ProClinical A1500 with the Triple Clean brush head) in the reduction of gingivitis and plaque over a 6-week period. METHODS: This was a single center, randomized, open label, examiner-blind, 2-treatment, parallel group study. Study participants who met the entrance criteria were enrolled in the study and randomly assigned to one of the two toothbrush groups. Study participants brushed with their assigned toothbrush and a marketed fluoride dentifrice for 2 minutes twice daily at home for 6 weeks. Gingivitis and plaque were evaluated at baseline and Week 6. Gingivitis was assessed using the Modified Gingival Index (MGI) and Gingival Bleeding Index (GBI) and plaque was assessed using the Rustogi Modified Navy Plaque Index (RMNPI). Data was analyzed using the ANCOVA with baseline as the covariate. RESULTS: In total, 130 study participants were randomized to treatment resulting in 64 study participants per group completing the study. Both brushes produced statistically significant (P < 0.001) reductions in gingivitis and plaque measures relative to baseline. The oscillating-rotating,brush with the novel brush head demonstrated statistically significantly (P < 0.05) greater reductions in all gingivitis measures, as well as whole mouth and interproximal plaque measures, compared to the sonic toothbrush. The benefit for the oscillating- rotating brush over the sonic brush was 21.3% for gingivitis, 35.7% for gingival bleeding, 34.7% for number of bleeding sites, 17.4% for whole mouth plaque, and 21.2% for interproximal plaque. There were no adverse events reported or observed for either brush.