Smiles, faces, and straight teeth.
Isaacson
Robert J
RJ
D003766:Dental Occlusion; D003812:Dentist-Patient Relations; D004955:Esthetics, Dental; D005145:Face / Q000033:anatomy & histology; D006801:Humans; D009971:Orthodontics, Corrective; D010685:Philosophy, Dental; D012904:Smiling