A comparison of a battery-operated power toothbrush and a manual toothbrush with respect to safety and plaque removal

MATERIALS AND METHODS A total of 48 healthy subjects with a mean age of 34.1 years were recruited into the trial from a general population. At an initial visit, subjects who complied with the inclusion and exclusion criteria received a baseline oral hard and soft tissue examination and a full mouth prophylaxis. They were then given written and verbal instructions in the use of the battery-operated D4 power toothbrush, after which they demonstrated their competence in using the brush prior to leaving the test facility. Subjects were requested to brush their teeth at home for 60 seconds twice a day until returning for the clinical assessment phase of the study approximately 7 days later.