title: Fusion and duplication: orthodontic treatment of a developmental anomaly.
mesh_terms: D002648:Child; D005671:Fused Teeth / Q000628:therapy*; D006801:Humans; D007180:Incisor / Q000002:abnormalities*; D008297:Male; D009971:Orthodontics, Corrective; D014071:Tooth Abnormalities / Q000628:therapy*; D014096:Tooth, Supernumerary / Q000628:therapy*