title: A new deep-grooved design toothbrush. A clinical evaluation.
mesh_terms: D000328:Adult; D003773:Dental Plaque / Q000517:prevention & control; D004867:Equipment Design; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009910:Oral Hygiene; D014099:Toothbrushing / Q000295:instrumentation*