title: Letter: Local analgesia of maxillary first molars.
mesh_terms: D000766:Anesthesia, Dental; D000779:Anesthetics, Local / Q000008:administration & dosage; D006801:Humans; D008437:Maxilla; D008963:Molar / Q000601:surgery; D014081:Tooth Extraction
chemical_list: D000779:Anesthetics, Local