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A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite

AIM: To evaluate the maxillary dentition effects of the extrusion arch for anterior open bite (AOB) correction in mixed dentition patients. MATERIALS AND METHODS: Fourteen subjects with an initial mean age of 9.17 ± 1.03 years presenting with dentoalveolar AOB (mean − 1.28 ± 1.46 mm) and normal faci...

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Autores principales: de Brito Vasconcelos, Juliana, de Almeida-Pedrin, Renata Rodrigues, Poleti, Thais Maria Freire Fernandes, Oltramari, Paula, de Castro Conti, Ana Cláudia Ferreira, Bicheline, Mirchel Henrique Bertola, Lindauer, Steven J., de Almeida, Marcio Rodrigues
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7573098/
https://www.ncbi.nlm.nih.gov/pubmed/33078213
http://dx.doi.org/10.1186/s40510-020-00339-z
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author de Brito Vasconcelos, Juliana
de Almeida-Pedrin, Renata Rodrigues
Poleti, Thais Maria Freire Fernandes
Oltramari, Paula
de Castro Conti, Ana Cláudia Ferreira
Bicheline, Mirchel Henrique Bertola
Lindauer, Steven J.
de Almeida, Marcio Rodrigues
author_facet de Brito Vasconcelos, Juliana
de Almeida-Pedrin, Renata Rodrigues
Poleti, Thais Maria Freire Fernandes
Oltramari, Paula
de Castro Conti, Ana Cláudia Ferreira
Bicheline, Mirchel Henrique Bertola
Lindauer, Steven J.
de Almeida, Marcio Rodrigues
author_sort de Brito Vasconcelos, Juliana
collection PubMed
description AIM: To evaluate the maxillary dentition effects of the extrusion arch for anterior open bite (AOB) correction in mixed dentition patients. MATERIALS AND METHODS: Fourteen subjects with an initial mean age of 9.17 ± 1.03 years presenting with dentoalveolar AOB (mean − 1.28 ± 1.46 mm) and normal facial pattern (FMA = 25.76°) were treated with an extrusion arch. The mean treatment period was 7.79 ± 2.58 months. Lateral cephalograms and dental models were taken before (T0) and after the correction of AOB (T1). Data were analyzed using paired t test to evaluate differences between T0 and T1. For all tests, a significance level of P < .05 was used. RESULTS: All patients achieved positive overbite at T1, with a mean increase of 3.07 mm. The maxillary incisors extruded 1.94 mm. Retroclination of the maxillary incisors (− 6.15°) and an increase in the interincisal angle (5.57°) were observed. There was a significant decrease in the distance between the incisal edge of the maxillary incisors and the molars (− 2.21 mm). There was significant mesial tipping of the maxillary molar (− 11.49°). Significant reductions of overjet (− 1.65 mm), arch perimeter (− 3.02 mm), and arch length (− 2.23 mm) were noted. The transverse maxillary intermolar distance did not change significantly. CONCLUSIONS: The use of a maxillary extrusion arch was effective in the treatment of AOB. Overbite increased due to incisor extrusion, as well as retroinclination and overjet reduction. However, side effects, such as mesial molar tipping and decreases in arch perimeter and length might occur.
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spelling pubmed-75730982020-10-20 A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite de Brito Vasconcelos, Juliana de Almeida-Pedrin, Renata Rodrigues Poleti, Thais Maria Freire Fernandes Oltramari, Paula de Castro Conti, Ana Cláudia Ferreira Bicheline, Mirchel Henrique Bertola Lindauer, Steven J. de Almeida, Marcio Rodrigues Prog Orthod Research AIM: To evaluate the maxillary dentition effects of the extrusion arch for anterior open bite (AOB) correction in mixed dentition patients. MATERIALS AND METHODS: Fourteen subjects with an initial mean age of 9.17 ± 1.03 years presenting with dentoalveolar AOB (mean − 1.28 ± 1.46 mm) and normal facial pattern (FMA = 25.76°) were treated with an extrusion arch. The mean treatment period was 7.79 ± 2.58 months. Lateral cephalograms and dental models were taken before (T0) and after the correction of AOB (T1). Data were analyzed using paired t test to evaluate differences between T0 and T1. For all tests, a significance level of P < .05 was used. RESULTS: All patients achieved positive overbite at T1, with a mean increase of 3.07 mm. The maxillary incisors extruded 1.94 mm. Retroclination of the maxillary incisors (− 6.15°) and an increase in the interincisal angle (5.57°) were observed. There was a significant decrease in the distance between the incisal edge of the maxillary incisors and the molars (− 2.21 mm). There was significant mesial tipping of the maxillary molar (− 11.49°). Significant reductions of overjet (− 1.65 mm), arch perimeter (− 3.02 mm), and arch length (− 2.23 mm) were noted. The transverse maxillary intermolar distance did not change significantly. CONCLUSIONS: The use of a maxillary extrusion arch was effective in the treatment of AOB. Overbite increased due to incisor extrusion, as well as retroinclination and overjet reduction. However, side effects, such as mesial molar tipping and decreases in arch perimeter and length might occur. Springer Berlin Heidelberg 2020-10-20 /pmc/articles/PMC7573098/ /pubmed/33078213 http://dx.doi.org/10.1186/s40510-020-00339-z Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Research
de Brito Vasconcelos, Juliana
de Almeida-Pedrin, Renata Rodrigues
Poleti, Thais Maria Freire Fernandes
Oltramari, Paula
de Castro Conti, Ana Cláudia Ferreira
Bicheline, Mirchel Henrique Bertola
Lindauer, Steven J.
de Almeida, Marcio Rodrigues
A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite
title A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite
title_full A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite
title_fullStr A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite
title_full_unstemmed A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite
title_short A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite
title_sort prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7573098/
https://www.ncbi.nlm.nih.gov/pubmed/33078213
http://dx.doi.org/10.1186/s40510-020-00339-z
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