title: Hydrochloric acid-pumice enamel surface abrasion for color modification: results after six months.
mesh_terms: D003743:Dental Enamel / Q000033:anatomy & histology* / Q000187:drug effects; D006801:Humans; D006851:Hydrochloric Acid / Q000627:therapeutic use*; D017640:Silicates; D012824:Silicic Acid; D012822:Silicon Dioxide; D014075:Tooth Discoloration / Q000628:therapy*
chemical_list: D017640:Silicates; D012824:Silicic Acid; D012822:Silicon Dioxide; C005144:pumice; D006851:Hydrochloric Acid