Safe zones of the maxillary alveolar bone in Down syndrome for orthodontic miniscrew placement assessed with cone-beam computed tomography
xmlui.metadata.dc.title: | Safe zones of the maxillary alveolar bone in Down syndrome for orthodontic miniscrew placement assessed with cone-beam computed tomography
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xmlui.metadata.dc.contributor.author: | Limeres Posse, Jacobo
Abeleira Pazos, María Teresa
Fernández Casado, María
Outomuro Rial, Mercedes
Diz Dios, Pedro
Freitas, Márcio Diniz
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xmlui.metadata.dc.contributor.affiliation: | Universidade de Santiago de Compostela. Departamento de Cirurxía e Especialidades Médico-Cirúrxicas
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xmlui.metadata.dc.date.issued: | 2019
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xmlui.metadata.dc.publisher: | Nature Publishing Group
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xmlui.metadata.dc.identifier.citation: | Limeres Posse, J., Abeleira Pazos, M.T., Fernández Casado, M. et al. Safe zones of the maxillary alveolar bone in Down syndrome for orthodontic miniscrew placement assessed with cone-beam computed tomography. Sci Rep 9, 12996 (2019). https://doi.org/10.1038/s41598-019-49345-0
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xmlui.metadata.dc.description.abstract: | The aim of this study was to quantify the available maxillary alveolar bone in a group of individuals
with Down syndrome (DS) to determine the best areas for orthodontic miniscrew placement. The study
group consisted of 40 patients with DS aged 12–30 years. We also selected an age and sex-matched
control group. All measurements were performed on cross-sectional images obtained with cone-beam
computed tomography. The selected areas of interest were the 4 interradicular spaces between the
distal wall of the canine and the mesial wall of the second molar, in both maxillary quadrants. We
measured the vestibular-palatine (VP) and mesiodistal (MD) dimensions to depths of 3, 6 and 9 mm
from the alveolar ridge. We also measured the bone density in the same interradicular spaces of interest
to 6 mm of depth from the alveolar crest. VP measurements were longer in the more posterior sectors
and as the distance from the alveolar ridge increased. MD measurements also increased progressively
as the distance from the alveolar ridge increased. In general, both the VP and MD measurements in
the DS group were similar among the male and female participants. As age increased, the MD distance
increased, while the VP distance decreased. The VP distance was ≥6 mm in at least 75% of the DS group
in practically all assessed interdental spaces. The MD distance was ≥2 mm in at least 75% of the DS
group only between the first and second molar, to 9 mm of depth from the alveolar ridge. The safe area
for inserting orthodontic miniscrews in DS patients is restricted to the most posterior and deepest area
of the maxillary alveolar bone |
xmlui.metadata.dc.relation.publisherversion: | https://doi.org/10.1038/s41598-019-49345-0 |
xmlui.metadata.dc.identifier.uri: | http://hdl.handle.net/10347/21256
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xmlui.metadata.dc.identifier.DOI: | 10.1038/s41598-019-49345-0 |
xmlui.metadata.dc.identifier.e-issn: | 2045-2322
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xmlui.metadata.dc.rights: | © The Author(s) 2019. Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/
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