title: [Dimensional changes of filament taken from the worn-out tooth brush (author's transl)].
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D009757:Nylons; D013499:Surface Properties; D013997:Time Factors; D014099:Toothbrushing / Q000295:instrumentation* / Q000379:methods
chemical_list: D009757:Nylons