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

Austro Martínez, María Dolores; Nicolás Silvente, Ana Isabel; Velasco-Ortega, E.; Jimenez-Guerra, A.; Alarcón, J.A.

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

dc.contributor.author	Austro Martínez, María Dolores
dc.contributor.author	Nicolás Silvente, Ana Isabel
dc.contributor.author	Velasco-Ortega, E.
dc.contributor.author	Jimenez-Guerra, A.
dc.contributor.author	Alarcón, J.A.
dc.contributor.department	Dermatología, Estomatología, Radiología y Medicina Física
dc.date.accessioned	2022-05-02T22:11:10Z
dc.date.available	2022-05-02T22:11:10Z
dc.date.issued	2021-09-17
dc.description	© 2021. This manuscript version is made available under the CC-BY-4.0 license http://creativecommons.org/licenses/by/4.0/ This document is the Published Manuscript version of a Published Work that appeared in final form in International Journal of Environmental Research and Public Health. To access the final edited and published work see doi.org/10.3390/ijerph18189793
dc.description.abstract	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.
dc.format	application/pdf	es
dc.identifier.citation	International Journal of Environmental Research and Public Health. nº18. 9793
dc.identifier.doi	https://doi.org/10.3390/ijerph18189793
dc.identifier.issn	1660-4601
dc.identifier.uri	http://hdl.handle.net/10201/119460
dc.language	eng	es
dc.relation.isreferencedby	ED_IDENTRADA=1070
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	Atribución 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	*
dc.subject	angle class II	es
dc.subject	brachyfacial patients	es
dc.subject	fixed functional appliance	es
dc.subject	mandibular retrusion	es
dc.title	Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es