Three-dimensional stability analysis of maxillomandibular advancement surgery with and without articular disc repositioning

dc.contributor.authorBianchi, Jonas [UNESP]
dc.contributor.authorPorciúncula, Guilherme Machado [UNESP]
dc.contributor.authorKoerich, Leonardo
dc.contributor.authorIgnácio, Jaqueline [UNESP]
dc.contributor.authorWolford, Larry Miller
dc.contributor.authorGonçalves, João Roberto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionPrivate Practice
dc.contributor.institutionBaylor University Medical Center
dc.date.accessioned2018-12-11T17:37:26Z
dc.date.available2018-12-11T17:37:26Z
dc.date.issued2018-08-01
dc.description.abstractThis retrospective cohort study aimed to assess, three-dimensionally, mandible and maxilla changes following maxillomandibular advancement (MMA), with and without repositioning of TMJ articular discs. The sample comprised cone-beam computed tomography data from 32 subjects: group 1 (n = 12) without disc displacement and group 2 (n = 20) with bilateral disc repositioning. An automatic cranial base superimposition method was used to register the images at three time points: T1 (preoperative), T2 (postoperative), and T3 (at least 11 months follow-up). To assess surgical changes (T2–T1) and adaptive responses (T3–T2), the images were compared quantitatively and qualitatively using the shape correspondence method. The results showed that surgical displacements were similar in both groups for all the regions of interest except the condyles, which moved in opposite directions — group 1 to superior and posterior positions, and group 2 to inferior and anterior positions. For adaptive responses, we observed high individual variability, with lower variability in group 2. Sagittal relapse was similar in both groups. In conclusion, there were no significant differences in skeletal stability between the two groups. The maxillomandibular advancement surgeries, with rotation of the occlusal plane, had stable results for both groups immediately after surgery and at 1-year follow-up.en
dc.description.affiliationDepartment of Pediatric Dentistry São Paulo State University (UNESP) School of Dentistry
dc.description.affiliationPrivate Practice
dc.description.affiliationDepartment of Oral and Maxillofacial Surgery Texas A&M University Health Science Center Baylor College of Dentistry Baylor University Medical Center
dc.description.affiliationUnespDepartment of Pediatric Dentistry São Paulo State University (UNESP) School of Dentistry
dc.format.extent1348-1354
dc.identifierhttp://dx.doi.org/10.1016/j.jcms.2018.05.031
dc.identifier.citationJournal of Cranio-Maxillofacial Surgery, v. 46, n. 8, p. 1348-1354, 2018.
dc.identifier.doi10.1016/j.jcms.2018.05.031
dc.identifier.file2-s2.0-85048510449.pdf
dc.identifier.issn1878-4119
dc.identifier.issn1010-5182
dc.identifier.scopus2-s2.0-85048510449
dc.identifier.urihttp://hdl.handle.net/11449/179954
dc.language.isoeng
dc.relation.ispartofJournal of Cranio-Maxillofacial Surgery
dc.relation.ispartofsjr1,033
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCone-beam computed tomography
dc.subjectImaging
dc.subjectOrthognathic surgery
dc.subjectTemporomandibular joint disc
dc.subjectThree-dimensional
dc.titleThree-dimensional stability analysis of maxillomandibular advancement surgery with and without articular disc repositioningen
dc.typeArtigo
unesp.author.orcid0000-0002-3749-0918[1]
unesp.author.orcid0000-0002-7140-5676[3]

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