title: Early extraction of four first permanent molars: report of case.
mesh_terms: D002648:Child; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D008963:Molar / Q000601:surgery*; D012690:Serial Extraction; D014094:Tooth, Deciduous / Q000601:surgery