title: Orthodontically corrected midline diastemas. A histologic study and surgical procedure.
mesh_terms: D000328:Adult; D003094:Collagen; D003238:Connective Tissue; D003970:Diastema / Q000175:diagnosis / Q000601:surgery; D004848:Epithelium; D005881:Gingiva / Q000166:cytology; D005890:Gingivectomy; D006801:Humans; D007742:Labial Frenum / Q000601:surgery; D008875:Middle Aged; D009967:Orthodontic Appliances; D009971:Orthodontics, Corrective; D014087:Tooth Movement Techniques
chemical_list: D003094:Collagen