Journal of clinical periodontology
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J. Clin. Periodontol. · Jun 2005
Quality of bristle end-rounding on replaceable heads of powered toothbrushes.
The aim of this study was to evaluate the geometry and the quality of bristle tip-rounding using 14 different heads from powered toothbrushes. ⋯ A high standard of bristle tip-rounding is an important feature with respect to the safety of powered toothbrushes. Those products with a greater portion of unacceptably rounded bristles might cause more harm to oral soft tissues during use. The end-rounding quality of some of the products should be improved.