title: Letters to the Editor.
authors.affiliation: *Department of Orthodontics and.
authors.forename: Lillemor
authors.initials: L
authors.lastname: Dimberg
authors.affiliation: **Dental Research Department, Postgraduate Dental Education Center, Region Örebro County, ***School of Health and Medical Sciences, Örebro University and.
authors.forename: Kristina
authors.initials: K
authors.lastname: Arnrup
authors.affiliation: ****Department of Orthodontics, Faculty of Odontology, Malmö University, Sweden.
authors.forename: Lars
authors.initials: L
authors.lastname: Bondemark
mesh_terms: D006801:Humans; D009970:Orthodontics; D012196:Review Literature as Topic