title: Long-term experience with direct-bonded lingual retainers.
authors.affiliation: University of Oslo.
authors.forename: E H
authors.initials: EH
authors.lastname: Dahl
authors.forename: B U
authors.initials: BU
authors.lastname: Zachrisson
mesh_terms: D000328:Adult; D001840:Dental Bonding / Q000379:methods*; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D009969:Orthodontic Wires; D009971:Orthodontics, Corrective / Q000379:methods*