Clinical evaluation of a newly designed contoured tooth-brush.
A newly designed contoured toothbrush was tested against the Oral B toothbrush in a single blind crossover study over a 6-month period using 78 patients. The findings were: (1) The contoured toothbrush was significantly better (P less  than 0.01) than the Oral B brush for gingival index scores; (2) Plaque scores were lower for the contoured brush (P = 0.10); (3) No significant differences were observed with respect to calculus scores.
D003728:Dental Calculus / Q000517:prevention & control; D003773:Dental Plaque / Q000517:prevention & control; D005891:Gingivitis / Q000517:prevention & control; D006801:Humans