Clinical evaluation of the effect of an ultrasonic toothbrush on plaque, gingivitis, and gingival bleeding: a six-month study.

This study evaluated the long-term effect of an ultrasonic toothbrush used as part of a daily oral hygiene regimen on supragingival plaque, gingivitis, and gingival bleeding. Compared with a conventional toothbrush, the ultrasonic toothbrush was significantly more effective in reducing plaque formation (p < 0.05), removing plaque (p < 0.05), and reducing gingivitis (p < 0.05) during the 6-month study period.