title: Maintenance of diastemas by a cast lingual loop connector and acid-etch technique.
mesh_terms: D000134:Acid Etching, Dental; D000293:Adolescent; D001840:Dental Bonding; D003779:Denture Design; D003830:Denture, Partial, Fixed; D003970:Diastema; D006801:Humans; D008297:Male; D013027:Space Maintenance, Orthodontic / Q000379:methods