Methods: In this single-blinded, randomized controlled clinical trial, 180 nursing home residents with at least 6 remaining teeth were given a new electric (ET) or manual toothbrush (MT). All participants were given the same NAF (1450 ppm) toothpaste. Oral examinations were performed by the same dental team, in the patient’s rooms. Plaque level was used as an indicator on oral hygiene. An adjusted version of the oral hygiene index (OHI-S) was used. Both groups were given the same oral and written instructions for use, by an independent dentist. After 2 months the participants were reexamined.
Results: Participants mean age was 86, 1±7.7, 75% were women, mean months in nursing home was 24.8±22.7, mean number of remaining teeth was 20±5.6, 73.3% cleaned their own teeth and 21.8% was assessed without cognitive impairment. A paired t-test showed statistical significant improved OHI-S in both groups, from 1.27±0.63 at baseline to 1.01±0.53 after 2 months (p<0.001). Mean improvement in OHI-S was identical in the two groups (p=0.80).
Conclusions: Introduction of ET and MT both improved oral hygiene, but no tendency of difference. Increased focus and control of routines and equipment regarding oral hygiene may explain the overall reduction in dental plaque level and seems to be an important factor contributing to an improved oral hygiene