Abstract
We evaluate plaque control using a sonic toothbrush under instruction by dental hygienists. The 24 subjects—12 men and 12 women—were divided in 2 groups, one with and the other without instruction by dental hygienists, and their plaque control records (PCR) and time for plaque control using a sonic toothbrush after one week were compared. In the instructed group, mean PCR improved statistically from 44.1% before instruction to 27.5% after one week (p<0.01) . In the noninstructed (control) group, mean PCR changed from 46.2% to 40.8% and no statistical improvement was seen. Sites improved in the instructed group were mesial and distal, and improvements were 18.8%—65.8% before instruction and 47.0% after and 24.9%—61.7% before instruction and 36.8% after. These results indicated the efficacy of professional oral hygiene instruction by a dental hygienist in sonic toothbrush use. Nihon Shishubyo Gakkai Kaishi (J Jpn Soc Periodontol) 48: 142—148, 2006.
