ISSN (Online): 2035-648X
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Maxillary tridimensional changes after slow expansion with leaf expander in a sample of growing patients: a pilot study
 

Type:  Articles

Pubblication date:  03/2018

Authors:  V. Lanteri*, A. Gianolio**, G. Gualandi***, M. Beretta

Language:  English

Institution:  *DDS, MS PhD in Oral Sciences, University of Milan, Department of Biomedical, Surgical and Dental Sciences, School of Dentistry Dean Prof. Giampietro Farronato **DDS, MS, Private practice Bra (CN), Italy ***DDS, MS, Private practice Bologna, Italy ****DDS, MS, Private practice Casale Monferrato (AL), Italy

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Early treatment; Posterior crossbite; Slow maxillary expansion.

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Title:  Maxillary tridimensional changes after slow expansion with leaf expander in a sample of growing patients: a pilot study

Abstract:  Aim The aim of this study is to evaluate the dento-alveolar effects of slow maxillary expansion using the Leaf Expander in a sample of growing patients with maxillary transverse deficiency, unilateral cross bite and mandibular shift. Method The study included 10 patients, 3 male and 7 female (mean age 7.5 + 7 months), treated with Leaf Expander anchored on the upper deciduous teeth. Digital models were obtained by a lab scan of the pvs impressions at the beginning of the therapy (T1) and at the removal of the palatal expander (T2). Five parameters were measured: 1) the distance between the first upper permanent molars; 2) the distance between the upper second deciduous molars; 3) the distance between the upper canine cusps 4) the distance between the first lower permanent molars; 5) the distance of the lower canine cusps. Results In all patients complete correction of posterior crossbite was achieved on average in 4 months, with a spontaneous expansion of the upper first permanent molars. Significant increases in the dento-alveolar transversal diameters were obtained. Increases were also observed in the anterior mandibular arch diameter (+ 1 mm). Conclusions These findings suggest that slow maxillary expansion using Leaf Expander appliance could be a reasonable alternative to conventional maxillary expansion therapy in the early mixed dentition.

 
 
 
 
 
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