The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Dental Press Journal of Orthodontics |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000500039 |
Resumo: | ABSTRACT Introduction: This pilot study had as main objective to test the reliability of a new method to evaluate orthognathic surgery outcomes and also, to understand the effect of hard tissue changes on soft tissue displacement. Methods: The sample consisted of eight patients that underwent bimaxillary advancement and had CBCT at two time points (before surgery and 6-8 months follow-up). Voxel-based cranial base superimposition was used to register the scans. A different technique of iterative closest point (ICP) was used to measure and correlate the changes. The average displacement of 15 areas (4 hard tissue and 11 soft tissue) were measured twice. Results: ICC was > 0.99 for all areas. Changes in the tip of the nose did not correlate with changes in any maxillary area, whereas soft tissue A point, A point and upper lips had correlation with several areas. The highest correlation for the maxilla was between the upper lip and the left/right supra cheilion (p< 0.001, r= 0.91 and p< 0.001, r= 0.93, respectively). In the mandible, the majority of the correlations involved soft tissue pogonion, pogonion and lower incisors, with the strongest one between pogonion and lower incisors (p< 0.001, r= 0.98). Conclusion: With the proper case selection, ICP is a reliable method that can be used to assess three-dimensional changes. |
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The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT studyCone-Beam CTThree-dimensional imageOrthognathic surgeryABSTRACT Introduction: This pilot study had as main objective to test the reliability of a new method to evaluate orthognathic surgery outcomes and also, to understand the effect of hard tissue changes on soft tissue displacement. Methods: The sample consisted of eight patients that underwent bimaxillary advancement and had CBCT at two time points (before surgery and 6-8 months follow-up). Voxel-based cranial base superimposition was used to register the scans. A different technique of iterative closest point (ICP) was used to measure and correlate the changes. The average displacement of 15 areas (4 hard tissue and 11 soft tissue) were measured twice. Results: ICC was > 0.99 for all areas. Changes in the tip of the nose did not correlate with changes in any maxillary area, whereas soft tissue A point, A point and upper lips had correlation with several areas. The highest correlation for the maxilla was between the upper lip and the left/right supra cheilion (p< 0.001, r= 0.91 and p< 0.001, r= 0.93, respectively). In the mandible, the majority of the correlations involved soft tissue pogonion, pogonion and lower incisors, with the strongest one between pogonion and lower incisors (p< 0.001, r= 0.98). Conclusion: With the proper case selection, ICP is a reliable method that can be used to assess three-dimensional changes.Dental Press International2017-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000500039Dental Press Journal of Orthodontics v.22 n.5 2017reponame:Dental Press Journal of Orthodonticsinstname:Dental Press International (DPI)instacron:DPI10.1590/2177-6709.22.5.039-046.oarinfo:eu-repo/semantics/openAccessKoerich,LeonardoBrunetto,Daniel PaludoOhira,Eduardo Terumi Blatteng2019-07-26T00:00:00Zoai:scielo:S2176-94512017000500039Revistahttp://www.scielo.br/dpjoONGhttps://old.scielo.br/oai/scielo-oai.phpartigos@dentalpress.com.br||davidnormando@hotmail.com2177-67092176-9451opendoar:2019-07-26T00:00Dental Press Journal of Orthodontics - Dental Press International (DPI)false |
dc.title.none.fl_str_mv |
The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study |
title |
The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study |
spellingShingle |
The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study Koerich,Leonardo Cone-Beam CT Three-dimensional image Orthognathic surgery |
title_short |
The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study |
title_full |
The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study |
title_fullStr |
The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study |
title_full_unstemmed |
The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study |
title_sort |
The effect of hard tissue surgical changes on soft tissue displacement: a pilot CBCT study |
author |
Koerich,Leonardo |
author_facet |
Koerich,Leonardo Brunetto,Daniel Paludo Ohira,Eduardo Terumi Blatt |
author_role |
author |
author2 |
Brunetto,Daniel Paludo Ohira,Eduardo Terumi Blatt |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Koerich,Leonardo Brunetto,Daniel Paludo Ohira,Eduardo Terumi Blatt |
dc.subject.por.fl_str_mv |
Cone-Beam CT Three-dimensional image Orthognathic surgery |
topic |
Cone-Beam CT Three-dimensional image Orthognathic surgery |
description |
ABSTRACT Introduction: This pilot study had as main objective to test the reliability of a new method to evaluate orthognathic surgery outcomes and also, to understand the effect of hard tissue changes on soft tissue displacement. Methods: The sample consisted of eight patients that underwent bimaxillary advancement and had CBCT at two time points (before surgery and 6-8 months follow-up). Voxel-based cranial base superimposition was used to register the scans. A different technique of iterative closest point (ICP) was used to measure and correlate the changes. The average displacement of 15 areas (4 hard tissue and 11 soft tissue) were measured twice. Results: ICC was > 0.99 for all areas. Changes in the tip of the nose did not correlate with changes in any maxillary area, whereas soft tissue A point, A point and upper lips had correlation with several areas. The highest correlation for the maxilla was between the upper lip and the left/right supra cheilion (p< 0.001, r= 0.91 and p< 0.001, r= 0.93, respectively). In the mandible, the majority of the correlations involved soft tissue pogonion, pogonion and lower incisors, with the strongest one between pogonion and lower incisors (p< 0.001, r= 0.98). Conclusion: With the proper case selection, ICP is a reliable method that can be used to assess three-dimensional changes. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000500039 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000500039 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2177-6709.22.5.039-046.oar |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Dental Press International |
publisher.none.fl_str_mv |
Dental Press International |
dc.source.none.fl_str_mv |
Dental Press Journal of Orthodontics v.22 n.5 2017 reponame:Dental Press Journal of Orthodontics instname:Dental Press International (DPI) instacron:DPI |
instname_str |
Dental Press International (DPI) |
instacron_str |
DPI |
institution |
DPI |
reponame_str |
Dental Press Journal of Orthodontics |
collection |
Dental Press Journal of Orthodontics |
repository.name.fl_str_mv |
Dental Press Journal of Orthodontics - Dental Press International (DPI) |
repository.mail.fl_str_mv |
artigos@dentalpress.com.br||davidnormando@hotmail.com |
_version_ |
1754122398038228992 |