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A comparative assessment of changes in dental arches associated with different activation protocols of rapid maxillary expansion
 

Type:  Articles

Pubblication date:  03/2018

Authors:  A. Baldini*, A. Nota*, C. Santariello, V. Assi**, F. Ballanti, P. Cozza

Language:  English

Institution:  Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Italy *Dental School, Vita-Salute San Raffaele University, Milan, Italy **Edinburgh Clinical Trials Unit (ECTU), University of Edinburgh, United Kingdom

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Maxillary expansion, palatal expansion, dental arches, orthodontics, orthodontic appliances.

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Email:  studiomedicobaldini@gmail.com


Title:  A comparative assessment of changes in dental arches associated with different activation protocols of rapid maxillary expansion

Abstract:  Aim The aim of this study is to compare dental arch changes associated with different activation protocols of maxillary expander. Materials and Methods A sample of 101 subjects with constricted maxillary arches (49 males and 52 females; mean age 10.96 1.91 years) was enrolled in the study. All subjects underwent RME with a stainless steel banded expander cemented to the maxillary first molars and the expansion screw was randomly activated with two different rapid maxillary expansion protocols (one-quarter per day or two quarters per day). The study also involved a control group of 22 subjects (10 females and 12 males, mean age 10.39 1.32 years) who underwent no treatment. A statistical comparison between the dental arch measures obtained before and after treatment in the two groups was performed. Results The Wilcoxon rank-sum test shows statistically significant differences of the measurement increases between the two activation protocols (at least p=0.01). Statistically significant differences were also reported in comparison with the control group. Conclusions A faster activation protocol could be able to determine a greater anterior opening of the mid-palatal suture. Moreover, it seems to yield a higher width increase in the molar area.

 
 
 
 
 
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