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.
No takes yet. Share an insight, caveat, or question.
Scopp et al. (1976) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: