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Article

Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients

1
Department of Restorative Dentistry, School of Dentistry, CEIR Campus Mare Nostrum, University of Murcia, 30008 Murcia, Spain
2
Dental Pathology and Therapeutics, School of Dentistry, CEIR Campus Mare Nostrum, University of Murcia, 30008 Murcia, Spain
3
Department of Comprehensive Dentistry for Adults and Gerodontology, University of Seville, 41009 Seville, Spain
4
Section of Orthodontics, Faculty of Odontology, University of Granada, 18071 Granada, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Alessandro Nota and Simona Tecco
Int. J. Environ. Res. Public Health 2021, 18(18), 9793; https://doi.org/10.3390/ijerph18189793
Received: 10 August 2021 / Revised: 13 September 2021 / Accepted: 14 September 2021 / Published: 17 September 2021
One of the goals of functional-appliance devices is to modify the vertical growth pattern, solving several kinds of malocclusion. This study aimed to evaluate Class II malocclusion treatment’s stability with Austro Repositioner, followed by fixed appliances, and assess its capacity to modify vertical dimensions in brachyfacial patients. A test group of 30 patients (16 boys and 14 girls, mean 11.9 years old) with Class II malocclusion due to mandibular retrognathism and brachyfacial pattern treated with Austro Repositioner and fixed appliance were compared to a matched untreated Class II control group of 30 patients (17 boys and 13 girls, mean age 11.7 years old). Lateral cephalograms were taken at T1 (initial records), T2 (end of treatment), and T3 (one year after treatment). Statistical comparisons were performed with a paired-sample t-test and two-sample t-tests. Significant improvements in the skeletal Class II relationship were observed in the treated group. The ANB angle decreased (4.75°), the SNB angle increased (3.92°), and the total mandibular length (Co-Pg) increased (8.18 mm) (p < 0.001). Vertical dimensions were also significantly modified, the FMA angle increased (3.94°), LAFH-distance increased (3.15 mm), and overbite decreased (3.35 mm). These changes remained stable one year after treatment. The Austro Repositioner was adequate for treating the skeletal Class II malocclusion resulting from the mandible retrusion in brachyfacial patients. View Full-Text
Keywords: angle class II; brachyfacial patients; fixed functional appliance; mandibular retrusion angle class II; brachyfacial patients; fixed functional appliance; mandibular retrusion
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MDPI and ACS Style

Austro-Martinez, M.D.; Nicolas-Silvente, A.I.; Velasco-Ortega, E.; Jimenez-Guerra, A.; Alarcon, J.A. Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients. Int. J. Environ. Res. Public Health 2021, 18, 9793. https://doi.org/10.3390/ijerph18189793

AMA Style

Austro-Martinez MD, Nicolas-Silvente AI, Velasco-Ortega E, Jimenez-Guerra A, Alarcon JA. Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients. International Journal of Environmental Research and Public Health. 2021; 18(18):9793. https://doi.org/10.3390/ijerph18189793

Chicago/Turabian Style

Austro-Martinez, Maria D., Ana I. Nicolas-Silvente, Eugenio Velasco-Ortega, Alvaro Jimenez-Guerra, and Jose A. Alarcon 2021. "Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients" International Journal of Environmental Research and Public Health 18, no. 18: 9793. https://doi.org/10.3390/ijerph18189793

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