Document Detail


Comparative efficacy of two battery-powered toothbrushes on dental plaque removal.
MedLine Citation:
PMID:  11887517     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A number of clinical studies have consistently demonstrated that power toothbrushes deliver superior plaque removal compared to manual toothbrushes. Recently, a new power toothbrush (Crest SpinBrush) has been marketed with a design that fundamentally differs from other marketed power toothbrushes. Other power toothbrushes feature a small, round head designed to oscillate for enhanced cleaning between the teeth and below the gumline. The new power toothbrush incorporates a similar round oscillating head in conjunction with fixed bristles, which allows the user to brush with optimal manual brushing technique. The objective of this randomized, examiner-blind, parallel design study was to compare the plaque removal efficacy of a positive control power toothbrush (Colgate Actibrush) to an experimental toothbrush (Crest SpinBrush) following a single use among 59 subjects. Baseline plaque scores were 1.64 and 1.40 for the experimental toothbrush and control toothbrush treatment groups, respectively. With regard to all surfaces examined, the experimental toothbrush delivered an adjusted (via analysis of covariance) mean difference between baseline and post-brushing plaque scores of 0.47, while the control toothbrush delivered an adjusted mean difference of 0.33. On average, the difference between toothbrushes was statistically significant (p = 0.013). Because the covariate slope for the experimental group was statistically significantly greater (p = 0.001) than the slope for the control group, a separate slope model was used. Further analysis demonstrated that the experimental group had statistically significantly greater plaque removal than the control group for baseline plaque scores above 1.43. With respect to buccal surfaces, using a separate slope analysis of covariance, the experimental toothbrush delivered an adjusted mean difference between baseline and post-brushing plaque scores of 0.61, while the control toothbrush delivered an adjusted mean difference of 0.39. This difference between toothbrushes was also statistically significant (p = 0.002). On average, the results on lingual surfaces demonstrated similar directional scores favoring the experimental toothbrush; however these results did not achieve statistical significance. In conclusion, the experimental Crest SpinBrush, with its novel fixed and oscillating bristle design, was found to be more effective than the positive control Colgate Actibrush, which is designed with a small round oscillating cluster of bristles.
Authors:
C Douglas Ruhlman; Robert D Bartizek; Aaron R Biesbrock
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of clinical dentistry     Volume:  13     ISSN:  0895-8831     ISO Abbreviation:  J Clin Dent     Publication Date:  2002  
Date Detail:
Created Date:  2002-03-12     Completed Date:  2002-05-21     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8904411     Medline TA:  J Clin Dent     Country:  United States    
Other Details:
Languages:  eng     Pagination:  95-9     Citation Subset:  D    
Affiliation:
Ruhlman Clinical Resources, Eugene, Oregon, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Analysis of Variance
Coloring Agents / diagnostic use
Confidence Intervals
Dental Plaque / classification,  therapy*
Dental Plaque Index
Equipment Design
Female
Humans
Male
Middle Aged
Prospective Studies
Single-Blind Method
Statistics as Topic
Statistics, Nonparametric
Surface Properties
Toothbrushing / instrumentation*
Chemical
Reg. No./Substance:
0/Coloring Agents

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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