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ORIGINAL ARTICLE
Year : 2013  |  Volume : 2  |  Issue : 3  |  Page : 101-108

Maxillary molar distalization with MGBM-system in class II malocclusion


1 Department of Orthodontics, Insubria University, Faculty of Dentistry, Varese, Italy
2 Department of Private Practice, Varese, Insubria University, Faculty of Dentistry, Department of Orthodontics, Varese, Italy
3 Department of Private Practice, Milano, Insubria University, Faculty of Dentistry, Department of Orthodontics, Varese, Italy
4 Department of Private Practice, Bassano del Grappa, Insubria University, Faculty of Dentistry, Department of Orthodontics, Varese, Italy
5 Professor and Department Chair, Insubria University, Faculty of Dentistry, Department of Orthodontics, Varese, Italy

Correspondence Address:
Alberto Caprioglio
Via San Zeno, 1, 27100, Pavia
Italy
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2278-0203.119683

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Aims: Objective of this retrospective study was to evaluate the treatment effects of the MGBM-System (G.B Maino, A. Giannelly, R. Bernard, P. Mura), a new intraoral device to treat Class II malocclusions with no patient cooperation by unilateral or bilateral molar distalization. Materials and Methods: A retrospective study was conducted to compare the pre-distalization and post-distalization cephalograms and dental model casts of 30 patients (15 male, 15 female) with Class II malocclusion treated with MGBM-System. Mean age at the beginning of treatment was 13.3 years (standard deviation 3.3). Angular, horizontal and vertical measurements were recorded to monitor skeletal and dental-alveolar changes. Molar movements in horizontal plane were monitored by making dental measurements on dental model casts. Results: The MGBM-System produced a rapid molar distalization and Class II relationship was corrected in 8 months ΁ 2.05, on average. The maxillary first molars were distalized of 4.14 (PTV-6 cemento-enamel junction), associated with a significant distal axis incline of 10. 5° referred to SN and a significant intrusion of 1.3 mm (PP). As for anchorage loss, the first premolar exhibited a significant mesial movement of 0.86 mm, associated with a significant mesial axis incline of 2.46°. No significative changes in either sagittal or vertical skeletal relationship were observed. Conclusion: The results suggest that the MGBM-System is an efficient and reliable device for distalizing the maxillary permanent first and second molars.


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