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Third Class Resolver: a retrospective analysis

Type:  Articles

Pubblication date:  09/2014

Authors:  M. D’Attilio, F. Festa, A. Filippakos, U. Comparelli, D. Tripodi

Language:  English

Institution:  Department of Oral Science, Nanotechnology and Biotechnology, "G. D'Annunzio", University of Chieti- Pescara, Chieti, Italy.

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Fixed rigid orthodontic appliances; Functional orthodontics; Orthopaedic appliances; Third Class Resolver (TCR©).

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Email:  [email protected]

Title:  Third Class Resolver: a retrospective analysis

Abstract:  Aim To evaluate the use of Third Class Resolver (TCR©), a new fixed and functional orthopaedic appliance for the treatment of skeletal Class III malocclusion in adolescents and young adults. Materials and methods Study Design: Retrospective analysis. Twenty subjects, 10 females and 10 males, affected by Class III malocclusion were treated with a new fixed orthopaedic appliance: the Third Class Resolver (TCR©). The mean age was 7 years at the beginning of treatment and 9 years at the end of treatment. The mean treatment time was 6 months. Digital cephalometric superimpositions on lateral radiographs taken at the start and end of treatment were assessed. The cephalometric values were statistically analysed. Results Cephalometric analysis of changes during treatment shows a statistically significant increase of ANB angle (mean 1°) (P=0.045); increase of Witts Index (mean 3.5 mm) (P=0.003); decrease of Maxillo-Mandibular angle (MM) (mean -2.3°) (P=0.047); increase of Upper incisor-Maxilla Plane angle (angle mean 10.5°) (P=0.02); increase of the distance between Upper Incisor and A-Pg line (mean 2.4 mm) (P=0.021); increase of the mandibular branch length (mean 4.8 mm) (P=0.004). Conclusions TCR© can be used fully for treatment of Class III malocclusions.

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