Hotelling’s T2 paired test showed significant differences of p0.05.Ĭonclusion: The expansion appliance in children resolved the crossbite and led to palatal widening, which was clearly visualized by creating mathematical morphometric models. Results: Visualization of the palatal soft tissue widening showed it to be greatest in the areas of the second deciduous and first permanent molars with maximum of 0.75 mm for each palatal side. To determine the significance of the vertical and sagittal profile changes, the paired t-test and Wilcoxon signed rank test were carried out in 20 patients The statistical significance of individual vertex displacements was calculated by performing Hotelling’s T2 paired test. ![]() Dental casts were digitalized by scanner and on the basis of quantitative mesh shape CPD-DCA analysis, coloured morphometrical maps were created. Material and Methods: 33 Caucasian children with posterior crossbite, 10 boys and 23 girls, aged 7 to 10 years (median 8 years 8 months) were treated with tooth-borne Haas type expander. Objectives: The aim of the study was to develop a mathematical model for the visualization and evaluation of transversal palatal soft tissue changes and to carry out a statistical evaluation of the changes in vertical and sagittal dimensions after rapid maxillary expansion treatment. Keywords: Crossbite Maxillary palate expansion Haas expander Charting This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. ![]() Visualization and Evaluation of Changes after Rapid Maxillary Expansion. How to cite this article: Ivanov IC, Dupej J, Bejdova S, Ciganova V, Strakova D, et al. *Address for Correspondence: Ilija Christo Ivanov, Charles University, 2nd Medical Faculty, University Hospital in Motol, Department of Stomatology V Uvalu 84 150 06 Prague 5 Czech Republic, Tel: +420 222 516 248, Fax: +420 222 520 504 Email: Submitted: 09 March 2017 Approved: 28 March 2017 Published: 30 March 2017 Ilija Christo Ivanov 1*, Jan Dupej 2, Sarka Bejdova 2, Veronika Ciganova 2, Dagmar Strakova 1 and Tatjana Dostalova 1ġCharles University, 2nd Medical Faculty, University Hospital in Motol, Department of Stomatology V Uvalu 84 150 06 Prague 5 Czech RepublicĢCharles University, 2nd Medical Faculty, Department of Anthropology and Human Genetics, Faculty of Science Vinicna 7 128 44 Prague 2 Czech Republic Visualization and Evaluation of Changes after Rapid Maxillary Expansion
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