title: [Relation of wedge-shaped tooth defects, the quality of toothbrush and toothbrushing methods].
mesh_terms: D000368:Aged; D002681:China / Q000453:epidemiology; D003742:Dental Devices, Home Care / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D014072:Tooth Abrasion / Q000453:epidemiology / Q000209:etiology*; D014099:Toothbrushing / Q000009:adverse effects* / Q000379:methods; D014100:Toothpastes / Q000009:adverse effects
chemical_list: D014100:Toothpastes