Nasomaxillary effects of miniscrew-assisted rapid palatal expansion and two surgically assisted rapid palatal expansion approaches.

Autor: Jesus AS; Department of Orthodontics, São Paulo State University (UNESP), School of Dentistry, Araraquara, Brazil. Electronic address: jesus.adrianasouza@gmail.com., Oliveira CB; Department of Orthodontics, São Paulo State University (UNESP), School of Dentistry, Araraquara, Brazil., Murata WH; Department of Orthodontics, São Leopoldo Mandic School and Dental Institute, Campinas, SP, Brazil., Gonçales ES; Department of Stomatology, Bauru School of Dentistry, São Paulo University, Bauru, Brazil., Pereira-Filho VA; Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araraquara, Brazil., Santos-Pinto A; Department of Orthodontics, São Paulo State University (UNESP), School of Dentistry, Araraquara, Brazil.
Jazyk: angličtina
Zdroj: International journal of oral and maxillofacial surgery [Int J Oral Maxillofac Surg] 2021 Aug; Vol. 50 (8), pp. 1059-1068. Date of Electronic Publication: 2021 Jan 18.
DOI: 10.1016/j.ijom.2020.12.014
Abstrakt: This retrospective study was performed to evaluate nasomaxillary changes in 36 patients at an advanced stage of skeletal maturity who underwent miniscrew-assisted rapid palatal expansion (MARPE) or surgically assisted rapid palatal expansion (SARPE) with/without an alar base cinch. Cone beam computed tomography images taken before and after expansion were analysed. Changes in the width of the dental arch (D66S, D66I), maxillary base (MxMol), and nasal floor and nasal cavity in the molar and canine regions (NaFMol, NaFCan, NaCMol, NaCCan) were compared, as well as changes in the choanal aperture (CA) and nasal soft tissue (NW). The MARPE technique produced smaller dental changes (D66S; P=0.025) and greater nasomaxillary expansion (MxMol, P=0.010; NaCMol, P=0.016; NaCCan, P=0.017; NaFMol, P=0.001; CA, P=0.002) than both SARPE techniques. Changes in NW did not differ significantly between the groups (P=0.200). MARPE uniformly increased the anterior and posterior widths of the nasal cavity. SARPE expanded the nasal cavity in a 'V-shape' pattern. Changes in the nasal cavity and choanal aperture related to the amount of dental arch expansion were greater for MARPE than for SARPE. All three approaches increased the width of the nasal soft tissue, although the cinch in SARPE limited this increase.
(Copyright © 2021 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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