Comparison of the Hydrabrush powered toothbrush with two commercially-available powered toothbrushes.

Introduction: An examiner-blinded, randomized, parallel, three-cell, controlled clinical trial was conducted to compare the efficacy of a new powered toothbrush (Hydrabrush) to that of two presently marketed power brushes (Oral-B and Sonicare) in reducing stain, supragingival plaque, gingivitis and the signs of periodontitis while monitoring safety.

Methods: One hundred ten subjects were randomly assigned to three groups (35--Oral-B group, 36--Sonicare group, and 39--Hydrabrush group). Subjects were instructed to use the assigned powered toothbrush according to the manufacturer's instructions for 2-minutes duration twice per day.