Surgically assisted maxillary expansion with or without pterygoid disjunction alters maxillomandibular positioning.

Autor: Carvalho FSR; Department of Oral and Maxillofacial Surgery, Federal University of Ceará Campus Sobral, Sobral, Ceará, Brazil. samuel.rcarvalho@gmail.com., Soares ECS; Department of Oral and Maxillofacial Surgery, Post-Graduation Program in Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil., de Medeiros JR; Post-Graduation Program in Dentistry, Federal University of Ceará. Department of Oral and Maxillofacial Surgery, University of Fortaleza (UNIFOR), Fortaleza, Ceará, Brazil., Júnior JMM; University of Fortaleza (UNIFOR), Fortaleza, Ceará, Brazil., Hyppolito JOP; Oral and Maxillofacial Surgery, Fortaleza, Ceará, Brazil., de Barros Silva PG; Oral Pathology Division, Post-Graduation Program in Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil., Ribeiro TR; Department of Patients With Special Needs, Post-Graduation Program in Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil., Costa FWG; Department of Oral and Maxillofacial Radiology, Post-Graduation Program in Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil.
Jazyk: angličtina
Zdroj: Oral and maxillofacial surgery [Oral Maxillofac Surg] 2023 Jun; Vol. 27 (2), pp. 269-281. Date of Electronic Publication: 2022 Apr 15.
DOI: 10.1007/s10006-022-01062-1
Abstrakt: Purpose: This study aimed to analyze alterations in mandibular positioning after surgically assisted maxillary expansion (SARME) with and without pterygoid disjunction (PD).
Methods: Cone-beam computed tomography scans of 24 healthy individuals (18-45 years old) with transverse deficiency, superior to 5 mm, underwent SARME with or without PD. The aspects prospectively assessed were (1) alignment and position of the head (ITK-Snap and 3D Slicer software); (2) McNamara's and Steiner-Tweed-Wits' cephalometric analysis (Dolphin Imaging®); and (3) colorimetric evaluation based on 3D correspondence analysis (3D Slicer software).
Results: A decrease in 1-NA and 1-SN angles as well as an increased occlusal plane in both groups was observed. Superior-inferior and anteroposterior spatial displacements of the chin were statistically significant in the PD group. Altered colorimetric patterns were also observed in the PD group.
Conclusions: This study found more evident tooth inclination in the group without PD; mandibular alterations were more evident in the PD group. Further studies with 3D analysis are strongly recommended for more comprehensive results.
(© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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