Upper airway changes in miniscrew-anchored maxillary protraction with hybrid and hyrax expanders: a randomized clinical trial (2020)
- Authors:
- USP affiliated authors: JANSON, GUILHERME DOS REIS PEREIRA - FOB ; CARREIRA, DANIELA GAMBA GARIB - FOB
- Unidade: FOB
- Subjects: ENSAIO CLÍNICO CONTROLADO RANDOMIZADO; MINI-IMPLANTES; MALOCLUSÃO DE ANGLE CLASSE III; ELÁSTICOS ORTODÔNTICOS
- Agências de fomento:
- Language: Inglês
- Abstract: The aim of this study was to compare the upper airway space changes after miniscrew-anchored maxillary protraction with hybrid and conventional hyrax expanders. The sample comprised 40 Class III malocclusion growing patients that were randomized into two groups of miniscrew-anchored maxillary protraction. The group HH was treated a hybrid hyrax appliance in the maxilla and two miniscrews distally to the canines in the mandible. Class III elastics were used from the maxillary first molar to the mandibular miniscrews until anterior crossbite correction. The group CH was treated with a similar protocol except for the conventional hyrax expander in the maxilla. CBCT was obtained before (T1) and after 12 months of therapy (T2). The shape and size of upper airway were assessed. Intergroup comparisons were performed using t tests (P<0.05). The group HH was composed by 13 patients (6 female, 7 male) with a mean age of 10.42 years. The group CH was composed by 15 patients (5 female, 7 male) with a mean age of 11.38 years. Good reproducibility was found for all measurements. Anteroposterior and transverse increases of the upper airway were found for both groups. The oropharynx and the most constricted area increased similarly in both groups. Maxillary protraction using miniscrews as anchorage produced an increase in the upper airways. No differences in upper airway changes were observed using protraction anchored on hybrid or conventional hyrax expanders.
- Imprenta:
- Source:
- Título: Brazilian Oral Research
- Volume/Número/Paginação/Ano: 1807-3107
- Conference titles: Sociedade Brasileira de Pesquisa Odontológica - SBPqO - Virtual Annual Meeting
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ABNT
MIRANDA, F. et al. Upper airway changes in miniscrew-anchored maxillary protraction with hybrid and hyrax expanders: a randomized clinical trial. Brazilian Oral Research. São Paulo: Faculdade de Odontologia de Bauru, Universidade de São Paulo. . Acesso em: 12 out. 2024. , 2020 -
APA
Miranda, F., Pugliese, F. S., Massaro, C., Bastos, J. C. C., Santos, A. M., Janson, G., et al. (2020). Upper airway changes in miniscrew-anchored maxillary protraction with hybrid and hyrax expanders: a randomized clinical trial. Brazilian Oral Research. São Paulo: Faculdade de Odontologia de Bauru, Universidade de São Paulo. -
NLM
Miranda F, Pugliese FS, Massaro C, Bastos JCC, Santos AM, Janson G, Palomo JM, Garib DG. Upper airway changes in miniscrew-anchored maxillary protraction with hybrid and hyrax expanders: a randomized clinical trial. Brazilian Oral Research. 2020 ;[citado 2024 out. 12 ] -
Vancouver
Miranda F, Pugliese FS, Massaro C, Bastos JCC, Santos AM, Janson G, Palomo JM, Garib DG. Upper airway changes in miniscrew-anchored maxillary protraction with hybrid and hyrax expanders: a randomized clinical trial. Brazilian Oral Research. 2020 ;[citado 2024 out. 12 ] - Influência da discrepância posterior na severidade da mordida aberta anterior
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