title: Control of lower incisor inclination with a completely customized lingual appliance for dentoalveolar compensation of class III malocclusion.
abstract: OBJECTIVE
  Bracket slots and orthodontic archwires offering high dimensional precision are needed for fully customized lingual appliances. We aimed to investigate whether high-precision appliances of this type enable dentoalveolar compensation of class III malocclusion so that lower incisor inclination at the end of treatment will closely match the anticipated situation as defined in a pretreatment setup.
  
  
  METHODS
  This retrospective study included a total of 34 consecutive patients who had worn a fully customized lingual appliance to achieve dentoalveolar compensation for class III malocclusion by intermaxillary elastics, or proximal enamel reduction, or extraction of teeth in one or both jaws. Casts fabricated at different points in time were three-dimensionally scanned to analyze how precisely the lower incisor inclinations envisioned in the setup were implemented in clinical practice.
  
  
  RESULTS
  Aside from minor deviations of ±3.75°, the lower incisor inclinations were clinically implemented as planned even in patients with major sagittal discrepancies.
  
  
  CONCLUSIONS
  Treatment goals predefined in a setup of dentoalveolar compensation for class III malocclusion can be very precisely achieved via a customized lingual appliance. Correct planning can prevent undesirable lingual tipping of the lower incisors. This finding should not encourage a more liberal use of dentoalveolar compensation, but it should heighten clinicians' awareness of how essential it is to sufficiently consider the individual anatomy of the dentoalveolar complex during treatment planning.
authors: Department of Orthodontics, Rhenish Friedrich-Wilhelm University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany, s.lossdoerfer@gmx.de.
authors: Stefan
authors: S
authors: Lossdörfer
authors: Rainer
authors: R
authors: Schwestka-Polly
authors: Dirk
authors: D
authors: Wiechmann
mesh_terms: D000328:Adult; D017267:Dental Prosthesis Design; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D008297:Male; D008313:Malocclusion, Angle Class III / Q000000981:diagnostic imaging* / Q000628:therapy*; D016910:Orthodontic Brackets; D057887:Overbite / Q000000981:diagnostic imaging* / Q000517:prevention & control*; D017755:Prosthesis Fitting / Q000379:methods*; D011859:Radiography; D012189:Retrospective Studies; D014087:Tooth Movement Techniques / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D016896:Treatment Outcome
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