title: Authors' response.
authors.affiliation: Hannover, Bad Essen, and Göttingen, Germany.
authors.forename: Dirk
authors.initials: D
authors.lastname: Wiechmann
authors.affiliation: Hannover, Bad Essen, and Göttingen, Germany.
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Klang
authors.affiliation: Hannover, Bad Essen, and Göttingen, Germany.
authors.forename: Hans-Joachim
authors.initials: HJ
authors.lastname: Helms
authors.affiliation: Hannover, Bad Essen, and Göttingen, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Knösel
mesh_terms: D003731:Dental Caries / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D016382:Orthodontic Appliance Design; D016910:Orthodontic Brackets; D014087:Tooth Movement Techniques / Q000295:instrumentation*