[Clinical comparison of newly introduced toothbrush with two presently available toothbrushes]

The cleansing effect of a newly introduced toothbrush, which is characterized by a thin, permanently elastic neck for reduction of abrasion pressure and an especially flat brush head, was clinically compared with two tested toothbrushes. Under identical experimental conditions, 30 subjects tested all three toothbrushes. Plaque was determined by the plaque index for toothbrush studies. On the whole, no significant differences were demonstrable with regard to the cleansing effect among the toothbrushes. Reduction of abrasion pressure, therefore, does not have a negative effect on the cleansing effect of these toothbrushes.