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Rapid Maxillary Expander and Eruption Guidance Appliance therapy in skeletal Class II: cephalometric considerations

Type:  Articles

Pubblication date:  /1/2019

Authors:  C. Maspero1, G. Begnoni2, A. Magnani3, M. Farronato3, N. Khomchyna4, C. Dellavia5

Language:  English

Institution:  Department of Biomedical, Surgical and Oral Sciences, University of Milan, Fondazione IRCCS Cą Granda, Milan, Italy 1 Assistant Professor 2 DDS, Ph.D, 3 DDS, Ph.D 4 Student in Dentistry 5 Associate Professor of Human Anatomy

Publication:  European Journal of Paediatric Dentistry

Publisher:  Ariesdue Srl

Keywords:  Occlus-o-Guide; Eruption guidance appliance; Rapid maxillary expander; Skeletal Class II; Functional therapy.

Email:  [email protected]


Title:  Rapid Maxillary Expander and Eruption Guidance Appliance therapy in skeletal Class II: cephalometric considerations

Abstract:  Aim The use of rapid maxillary expander (RME) combined with eruption guidance appliances (EGA) represents a valid method in the treatment of skeletal Class II deep bite patients. In this paper a retrospective cephalometric study of the effects of RME and EGA therapy in Class II deep bite patients is described and compared with the treatment effects of patients with the same malocclusion treated only by RME. Materials and methods Pre and post treatment cephalometric radiographs of 47 Class II division 1 deep bite growing patients treated with RME followed by EGA (mean age 9.65 years) (Group 1) were compared with those obtained from a control group (Group 2) of 44 patients (mean age 9.34 years) treated with RME only. The following cephalometric values were analized: SNA; SNB; ANB; SN-PNS.ANS; SN-Go.GN; N-Me; S-Go. Results Improvement in maxillo-mandibular relationship was observed in both groups with significantly higher decrease of SNA and ANB in group 1. The cranio-maxillary relation shows a tendency to grow downward and backward in both groups. Both anterior and posterior total facial heights showed a significant increase in group 1. Conclusions RME followed by EGA therapy in Class II skeletal deep bite patients has shown better results compared with RME therapy without functional appliance.

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