title: Perspectives.
authors.forename: M
authors.initials: M
authors.lastname: Castillo
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology; D004644:Emotions; D005149:Facial Expression; D005260:Female; D006240:Happiness; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D009034:Mother-Child Relations; D009971:Orthodontics, Corrective; D014073:Tooth Bleaching / Q000523:psychology*