Análise bi e tridimensional das vias aéreas superiores em pacientes submetidos à cirurgia ortognática bimaxilar
The purpose of this work aimed to analyze the bi and three-dimensional changes in the upper airway after orthognathic surgery procedures. Pre (T1) and postoperative (T2) CT scans were used, standardizing craniometric points that served as a reference to analyze linear and volumetric changes in di...
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| Formato: | doctoralThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/32266 |
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| Resumo: | The purpose of this work aimed to analyze the bi and three-dimensional changes in the upper
airway after orthognathic surgery procedures. Pre (T1) and postoperative (T2) CT scans were
used, standardizing craniometric points that served as a reference to analyze linear and
volumetric changes in different areas in the upper airway. Twenty-two patients were included
in the study, having undergone bimaxillary surgery with alteration of the occlusal plane. All
cases were planned virtually, and the Dolphin Imaging software (version 11.9) was used to
analyze the linear measurements, as well as the calculation of the area of the total upper area,
and its 3 subdivisions and the region most significant. The posterior and upper total airways
benefited from the advancing movements of bimaxillary surgeries. There was a positive
correlation between the pre and post constriction value and the total 3D value of the pre and
post airway. A significant difference was observed when evaluating the pre and post average
of the total airway (ST) bi and three-dimensional follow-up. A positive correlation was found
between the counterclockwise rotation of the occlusal plane airway’s enlargement of the
airway. It was not possible to accurately determine how each craniometric point individually
influenced and / or contributed to the changes in each segment of the analyzed airway. Based
on the research data, bimaxillary orthognathic surgery demonstrated an increase in the
dimensions of the upper airway, showing different behaviors depending on the segment of the
upper airway evaluated, and its relationship with the movements of the craniometric points. |
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