With the oscillating rotating power toothbrush (Braun/Oral-B D17) the use of high force (+/-3.5 N) is less efficacious as compared to a regular low force (+/-1.5 N) while the incidence of gingival abrasion sites was comparable.

After periodontal therapy, the functional phenotype of the peripheral blood monocytes from patients was reconstituted, resembling that of subjects without periodontitis.

No statistically significant difference in the incidence of gingival abrasion was found between brushing with dentifrice or without dentifrice. Neither did oral sensory perception seem to affect the incidence of gingival abrasion.

A 5-week training period with repeated hands-on instruction gives panellists the skill to perform brushing with efficacy comparable to that of professional brushing. In agreement with a previous study, the 3D was more effective than a flat-trimmed manual toothbrush (Van der Weijden et al. 1994). Brushing with the criss-cross resulted in small statistical differences with the 3D and the flat-trimmed manual toothbrush. The clinical relevance of these statistically significant results should be the subject of a longitudinal study.

The data from this study show that the design and action of the Braun Oral-B 3D Excel power toothbrush are more effective in resolving gingivitis than the Sonicare & the Philips Sensiflex 2000 power toothbrushes.