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COMPARATIVE STUDY
JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

Efficacy of two different toothbrush heads on a sonic power toothbrush compared to a manual toothbrush on established gingivitis and plaque

Salim Nathoo, Luis R Mateo, Patricia Chaknis, James H Kemp, John Gatzemeyer, Boyce M Morrison, Fotinos Panagakos
Journal of Clinical Dentistry 2014, 25 (4): 65-70
26054181

OBJECTIVE: To evaluate the efficacy of a power toothbrush with distinct multi-directional cleaning action using two different heads (Colgate ProClinical C200 toothbrush with either a triple clean head or a sensitive head) as compared to a manual flat-trim toothbrush (Oral B Indicator toothbrush) on supragingival plaque and established gingivitis.

METHODS: This examiner-blind, randomized, controlled, three-treatment, parallel-group clinical research study assessed plaque removal via the comparison of pre- to post-brushing after a single use and again after four weeks of use, using the Rustogi Modified Navy Plaque Index. This study also assessed gingivitis at four weeks using the Löe-Silness Gingival Index. Qualifying adult male and female subjects from the central New Jersey, USA area reported to the study site after refraining from any oral hygiene procedures for 24 hours, and from eating, drinking, and smoking for four hours. Following an examination for plaque and gingivitis, they were randomized into three balanced groups. Subjects were instructed to brush their teeth for two minutes under supervision with their assigned toothbrush and a commercially available toothpaste (Colgate Cavity Protection toothpaste), after which they were again evaluated for plaque. Subjects were dismissed from the study site with the toothpaste and their assigned toothbrush to use at home twice daily for the next four weeks. They reported to the study site after four weeks of product use, at which time they were evaluated for plaque and gingivitis.

RESULTS: One hundred twenty (120) enrolled subjects complied with the protocol and completed the clinical study. The results of the study indicated that all three test products provided statistically significant reductions in pre-brushing to post-brushing plaque scores for whole mouth and interproximal sites after a single use. For gingival margin plaque sites, only the Colgate ProClinical C200 toothbrush, with either the triple clean head or the sensitive head, provided statistically significant reductions in pre- to post-brushing plaque scores. After four weeks of product use, all three test products provided statistically significant reductions in baseline to four-week whole mouth and interproximal site plaque scores, but only the Colgate ProClinical C200 toothbrush, with either the triple clean head or the sensitive head, provided a statistically significant reduction in plaque scores at gingival margin sites. All three test products provided statistically significant reductions in gingival and gingivitis severity index scores after four weeks of product use. Relative to the manual toothbrush group, after a single tooth brushing the Colgate ProClinical C200 toothbrush, with either the triple clean head or sensitive head, provided statistically significantly greater reductions in whole mouth plaque index scores (51.9% and 59.3%, respectively), in gingival margin plaque index scores (700% and 650%, respectively), and interproximal plaque index scores (64.2% and 60.4%, respectively). Relative to the manual toothbrush group, after four weeks of use the Colgate ProClinical C200 toothbrush, with either the triple clean head or sensitive head, provided statistically significantly greater reductions in whole mouth plaque index scores (78.6%, and 82.1%, respectively), in gingival margin plaque index scores (3700% and 3400%, respectively), and interproximal plaque index scores (50.8% and 52.5%, respectively). Relative to the manual toothbrush group, after four weeks of use the Colgate ProClinical C200 toothbrush, with either the triple clean head or sensitive head, provided statistically significantly greater reductions in gingival index scores of 900% and 833%, respectively, and in gingivitis severity index scores of 466.7% and 600%, respectively. All statistically significant reductions were at the p ≤ 0.05 level. There were no statistically significant differences between the scores of the Colgate ProClinical C200 toothbrush with triple clean head and the scores of the Colgate ProClinical C200 toothbrush with sensitive head at any comparison time point.

CONCLUSION: The Colgate ProClinicaI C200 toothbrush, with either a triple clean head or a sensitive head, provides statistically significant and clinically relevant levels of efficacy in the removal of supragingival dental plaque in the whole mouth, at the gingival margin, and interproximally after a single tooth brushing and after four weeks of use, as well as a statistically significantly greater level of efficacy in the reduction of gingivitis and gingival bleeding when compared to a manual flat-trim toothbrush.

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