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Brazilian Dental Journal

Print version ISSN 0103-6440


ZANATTA, Fabricio B.; ANTONIAZZI, Raquel P.; PINTO, Tatiana M. P.  and  ROSING, Cassiano K.. Supragingival plaque removal with and without dentifrice: a randomized controlled clinical trial. Braz. Dent. J. [online]. 2012, vol.23, n.3, pp.235-240. ISSN 0103-6440.

The aim of this study was to compare the efficacy of dental plaque removal by brushing with and without conventional dentifrice. Twenty-four students aged 17 to 28 years participated in this randomized controlled clinical trial. Quadrants 1-3 or 2-4 were randomly allocated to the test group (brushing without dentifrice) or control group (brushing with dentifrice). After 72 h of cessation of oral hygiene, Quigley & Hein (Turesky) plaque index was assessed before and after brushing by a calibrated and blind examiner. Overtime and intergroup comparisons were performed by Student's paired sample t-test at 5% significance level. The results showed that both groups after toothbrushing presented statistically significant reductions in plaque, with no differences between them (from 3.06 ± 0.54 to 1.27 ± 0.26 versus from 3.07 ± 0.52 to 1.31 ± 0.23). A separate analysis of the buccal and lingual aspects also showed no significant differences between groups. It may be concluded that the use of a conventional dentifrice during toothbrushing does not seem to enhance plaque removal capacity.

Keywords : toothbrushing; dental plaque; dentifrice; clinical trial; oral hygiene.

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