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Original Article

Upper molar distalization and periodontally facilitated orthodontics

2011, Volumen 41, Número 4
Raffaele Spena, Gaetano Turatti
Profesor asociado adjunto. Departamento de Ortodoncia. Universidad de Ferrara. Clínica privada en Nápoles, Italia
 

All intraoral fixed distalizers have a loss of anterior anchorage as side effect. Most of the clinical research has focused on the improvement of the anterior anchorage. This paper has tried to focus on the possibilities to enhance molar movement e reduce molar resistance to distal thrust. Material. Nine adult patients with Class II malocclusion divided in two groups. Group A of six patients treated with a corticotomy performed with rotating surgical instruments. Group B of three patients treated with piezosurgery. Segmental corticotomy was made both buccally and palatally on the upper molars to distalize and it has been associated to an intraoral distalizing system (200 g Sentalloy coils compressed between second premolars and first permanent molars). No anchorage was provided in the anterior region. Results. The segmental corticotomy was able to provide a bodily distal movement of the upper permanent molars with little anterior anchorage loss. No particular side effect was found. Actually, periodontal conditions of the distalized molars improved in all cases.  (Rev Esp Ortod. 2011;41(4):246-254)

 
 
Key words:
Class II malocclusion. Molar distalization. Segmental corticotomy.
 
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