| الوصف: |
Javier Echarri-Nicolás,1 María José González-Olmo,2 Pablo Echarri-Lobiondo,3 Manuel Lagravère,4 Martin Romero2 1Doctoral Program in Health Sciences, International PhD School, Rey Juan Carlos University (URJC), Móstoles, Madrid, Spain; 2Department of Orthodontics, University Rey Juan Carlos, Alcorcón, Madrid, Spain; 3Athenea Dental Institute, San Jorge University, Zaragoza, Spain; 4Division of Orthodontics, Faculty of Dentistry, University of Alberta, Edmonton, Alberta, CanadaCorrespondence: María José González-Olmo, Department of Orthodontics, University Rey Juan Carlos, Avda de Atenas s/n 28922, Alcorcón, Madrid, Spain, Email mariajose.gonzalez@urjc.esPurpose: This study compared the insertion and thickness of the cortical bone, the parallelism of the midpalatal suture, and the skeletal transverse dimension using a microimplant-assisted rapid palatal expansion (MARPE) with those produced by bone-anchored maxillary expander (BAME) in adults.Patients and Methods: The sample comprised 18 patients (mean age, 29.9± 9.4 years) selected for the MARPE group and 18 (mean age 24.8± 6.8 years) selected for the BAME group. Cone-Beam computed tomography scans taken just before and after the expansion.Results: After treatment, there was a significant palatal depth decrease. In addition, maxillary and mandibular width were increased in both groups. Regarding the cortical bone insertion and cortical bone width, it is shown an increase in both groups but those changes are not significant. However, the anterior suture opening effect occurs more frequently in the BAME than in the MARPE device. There are no differences in the frequency of opening of the midpalatal suture in the cases treated with MARPE and BAME, in both cases the most frequent opening morphology is parallel, independently of midpalatal suture maturation.Conclusion: There are no differences in the use of MARPE or BAME in the parallelism of the middle palatal suture, the cortical bone insertion, and thickness according to the maturation stages of the midpalatal suture but significantly increases the transverse dimensions of the maxillary skeleton.Keywords: 3D-scanner, CT, microimplant, expansion |
PDF full text from Publisher 
Full Text Finder