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Pharyngeal airway changes after bimaxillary orthognathic surgery: Preliminary results

Promene faringealnih vazdušnih puteva nakon bimaksilarne ortognatske hirurgije - preliminarni rezultati

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2015
2038.pdf (314.2Kb)
Authors
Stefanović, Neda
Glišić, Branislav
Nikolić, Predrag
Juloski, Jovana
Palomo, Juan Martin
Article (Published version)
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Abstract
Introduction Dentofacial deformity, a deviation from normal facial proportions and dental relationships, is corrected by jaw repositioning in all three spatial planes, which changes the position and tension of the surrounding tissues, bones and muscles. These changes may also affect the dimensions of the pharyngeal airways (PA). Objective The aim of this study was to evaluate and compare three-dimensional PA changes in patients treated by a combination mandibular set-back/maxillary advancement versus patients that had bimaxillary advancement with genioplasty. Methods The sample consisted of 7 patients treated by combined mandibular set-back/maxillary advancement and 7 patients treated with bimaxillary advancement surgery. Nasopharyngeal (NP) volume, oropharyngeal (OP) volume and the area of maximum constriction (AMC) in the OP were measured on CbCt scans (2 mA/120 kV/12'' FOV) taken before (T1 ) and 3 months after surgery (T2). Paired samples t-test was used for analyzing statistical s...ignificance of changes (p≤0.05). Results OP volume and AMC increase after bimaxillary advancement was statistically significant, while for the mandibular set-back group the increase was non-significant. NP volume was not reduced in any of the two groups. No significant differences in PA dimensions were found between groups at neither T1 nor T2 time points. Conclusion Results suggest that the combination of mandibular set-back/maxillary advancement did not reduce airway dimensions, while bimaxillary advancement surgery led to a statistically significant increase in the OP dimensions.

Uvod Dentofacijalni deformiteti predstavljaju odstupanje u odnosu na normalne proporcije lica i dentalne odnose. Leče se repozicioniranjem vilica u sve tri ravni prostora, što menja položaj i napetost okolnih mekih tkiva, kostiju i mišića. Ove promene mogu da utiču na veličinu faringealnih vazdušnih puteva. Cilj rada Cilj studije je bio da se procene i uporede trodimenzionalne promene faringealnih vazdušnih puteva kod osoba lečenih retropozicioniranjem mandibule uz pomeranje maksile unapred u odnosu na one lečene pomeranjem obe vilice unapred uz genioplastiku. Metode rada Ispitanike je činilo sedam pacijenata lečenih kombinacijom retropozicioniranja mandibule i anteriornog pozicioniranja maksile i sedam pacijenata lečenih bimaksilarnim anteriornim pozicioniranjem. Zapremine nazofarinksa, orofarinksa i površina najužeg dela orofarinksa mereni su na CBCT snimcima (2 tL/120 kV/12' FOV) napravljanim pre operacije (T1) i tri meseca nakon hirurške korekcije (T2). Studentov t-test za uparene ...uzorke korišćen je za analizu statističke značajnosti promena (p≤0,05). Rezultati Zapremina orofarinksa i površina najužeg dela orofarinksa povećale su se u obe grupe, i to statistički značajno kod ispitanika lečenih bimaksilarnim anteriornim pozicioniranjem, a statistički beznačajno kod ispitanika lečenih kombinacijam retropozicioniranja mandibule i anteriornog pozicioniranja maksile. Ni u jednoj grupi nije došlo do smanjenja zapremine nazofarinksa. Ni pre ni posle terapije nisu uočene značajne razlike u veličini vazdušnih puteva između grupa. Zaključak Rezultati ukazuju na to da retropozicioniranje mandibule uz anteriorno pozicioniranje maksile nije smanjilo dimenzije vazdušnih puteva, dok je bimaksilarno anteriorno pozicioniranje dovelo do statistički značajnog povećanja veličine orofarinksa.

Keywords:
cone beam CT / bimaxillary orthognathic surgery / pharyngeal airway / CBCT / bimaksilarna ortognatska hirurgija / faringealni vazdušni putevi
Source:
Srpski arhiv za celokupno lekarstvo, 2015, 143, 5-6, 267-273
Publisher:
  • Srpsko lekarsko društvo, Beograd

DOI: 10.2298/SARH1506267S

ISSN: 0370-8179

WoS: 000357362400003

Scopus: 2-s2.0-84936991462
[ Google Scholar ]
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4
URI
https://smile.stomf.bg.ac.rs/handle/123456789/2043
Collections
  • Radovi istraživača
Institution/Community
Stomatološki fakultet
TY  - JOUR
AU  - Stefanović, Neda
AU  - Glišić, Branislav
AU  - Nikolić, Predrag
AU  - Juloski, Jovana
AU  - Palomo, Juan Martin
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2043
AB  - Introduction Dentofacial deformity, a deviation from normal facial proportions and dental relationships, is corrected by jaw repositioning in all three spatial planes, which changes the position and tension of the surrounding tissues, bones and muscles. These changes may also affect the dimensions of the pharyngeal airways (PA). Objective The aim of this study was to evaluate and compare three-dimensional PA changes in patients treated by a combination mandibular set-back/maxillary advancement versus patients that had bimaxillary advancement with genioplasty. Methods The sample consisted of 7 patients treated by combined mandibular set-back/maxillary advancement and 7 patients treated with bimaxillary advancement surgery. Nasopharyngeal (NP) volume, oropharyngeal (OP) volume and the area of maximum constriction (AMC) in the OP were measured on CbCt scans (2 mA/120 kV/12'' FOV) taken before (T1 ) and 3 months after surgery (T2). Paired samples t-test was used for analyzing statistical significance of changes (p≤0.05). Results OP volume and AMC increase after bimaxillary advancement was statistically significant, while for the mandibular set-back group the increase was non-significant. NP volume was not reduced in any of the two groups. No significant differences in PA dimensions were found between groups at neither T1 nor T2 time points. Conclusion Results suggest that the combination of mandibular set-back/maxillary advancement did not reduce airway dimensions, while bimaxillary advancement surgery led to a statistically significant increase in the OP dimensions.
AB  - Uvod Dentofacijalni deformiteti predstavljaju odstupanje u odnosu na normalne proporcije lica i dentalne odnose. Leče se repozicioniranjem vilica u sve tri ravni prostora, što menja položaj i napetost okolnih mekih tkiva, kostiju i mišića. Ove promene mogu da utiču na veličinu faringealnih vazdušnih puteva. Cilj rada Cilj studije je bio da se procene i uporede trodimenzionalne promene faringealnih vazdušnih puteva kod osoba lečenih retropozicioniranjem mandibule uz pomeranje maksile unapred u odnosu na one lečene pomeranjem obe vilice unapred uz genioplastiku. Metode rada Ispitanike je činilo sedam pacijenata lečenih kombinacijom retropozicioniranja mandibule i anteriornog pozicioniranja maksile i sedam pacijenata lečenih bimaksilarnim anteriornim pozicioniranjem. Zapremine nazofarinksa, orofarinksa i površina najužeg dela orofarinksa mereni su na CBCT snimcima (2 tL/120 kV/12' FOV) napravljanim pre operacije (T1) i tri meseca nakon hirurške korekcije (T2). Studentov t-test za uparene uzorke korišćen je za analizu statističke značajnosti promena (p≤0,05). Rezultati Zapremina orofarinksa i površina najužeg dela orofarinksa povećale su se u obe grupe, i to statistički značajno kod ispitanika lečenih bimaksilarnim anteriornim pozicioniranjem, a statistički beznačajno kod ispitanika lečenih kombinacijam retropozicioniranja mandibule i anteriornog pozicioniranja maksile. Ni u jednoj grupi nije došlo do smanjenja zapremine nazofarinksa. Ni pre ni posle terapije nisu uočene značajne razlike u veličini vazdušnih puteva između grupa. Zaključak Rezultati ukazuju na to da retropozicioniranje mandibule uz anteriorno pozicioniranje maksile nije smanjilo dimenzije vazdušnih puteva, dok je bimaksilarno anteriorno pozicioniranje dovelo do statistički značajnog povećanja veličine orofarinksa.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Pharyngeal airway changes after bimaxillary orthognathic surgery: Preliminary results
T1  - Promene faringealnih vazdušnih puteva nakon bimaksilarne ortognatske hirurgije - preliminarni rezultati
VL  - 143
IS  - 5-6
SP  - 267
EP  - 273
DO  - 10.2298/SARH1506267S
ER  - 
@article{
author = "Stefanović, Neda and Glišić, Branislav and Nikolić, Predrag and Juloski, Jovana and Palomo, Juan Martin",
year = "2015",
abstract = "Introduction Dentofacial deformity, a deviation from normal facial proportions and dental relationships, is corrected by jaw repositioning in all three spatial planes, which changes the position and tension of the surrounding tissues, bones and muscles. These changes may also affect the dimensions of the pharyngeal airways (PA). Objective The aim of this study was to evaluate and compare three-dimensional PA changes in patients treated by a combination mandibular set-back/maxillary advancement versus patients that had bimaxillary advancement with genioplasty. Methods The sample consisted of 7 patients treated by combined mandibular set-back/maxillary advancement and 7 patients treated with bimaxillary advancement surgery. Nasopharyngeal (NP) volume, oropharyngeal (OP) volume and the area of maximum constriction (AMC) in the OP were measured on CbCt scans (2 mA/120 kV/12'' FOV) taken before (T1 ) and 3 months after surgery (T2). Paired samples t-test was used for analyzing statistical significance of changes (p≤0.05). Results OP volume and AMC increase after bimaxillary advancement was statistically significant, while for the mandibular set-back group the increase was non-significant. NP volume was not reduced in any of the two groups. No significant differences in PA dimensions were found between groups at neither T1 nor T2 time points. Conclusion Results suggest that the combination of mandibular set-back/maxillary advancement did not reduce airway dimensions, while bimaxillary advancement surgery led to a statistically significant increase in the OP dimensions., Uvod Dentofacijalni deformiteti predstavljaju odstupanje u odnosu na normalne proporcije lica i dentalne odnose. Leče se repozicioniranjem vilica u sve tri ravni prostora, što menja položaj i napetost okolnih mekih tkiva, kostiju i mišića. Ove promene mogu da utiču na veličinu faringealnih vazdušnih puteva. Cilj rada Cilj studije je bio da se procene i uporede trodimenzionalne promene faringealnih vazdušnih puteva kod osoba lečenih retropozicioniranjem mandibule uz pomeranje maksile unapred u odnosu na one lečene pomeranjem obe vilice unapred uz genioplastiku. Metode rada Ispitanike je činilo sedam pacijenata lečenih kombinacijom retropozicioniranja mandibule i anteriornog pozicioniranja maksile i sedam pacijenata lečenih bimaksilarnim anteriornim pozicioniranjem. Zapremine nazofarinksa, orofarinksa i površina najužeg dela orofarinksa mereni su na CBCT snimcima (2 tL/120 kV/12' FOV) napravljanim pre operacije (T1) i tri meseca nakon hirurške korekcije (T2). Studentov t-test za uparene uzorke korišćen je za analizu statističke značajnosti promena (p≤0,05). Rezultati Zapremina orofarinksa i površina najužeg dela orofarinksa povećale su se u obe grupe, i to statistički značajno kod ispitanika lečenih bimaksilarnim anteriornim pozicioniranjem, a statistički beznačajno kod ispitanika lečenih kombinacijam retropozicioniranja mandibule i anteriornog pozicioniranja maksile. Ni u jednoj grupi nije došlo do smanjenja zapremine nazofarinksa. Ni pre ni posle terapije nisu uočene značajne razlike u veličini vazdušnih puteva između grupa. Zaključak Rezultati ukazuju na to da retropozicioniranje mandibule uz anteriorno pozicioniranje maksile nije smanjilo dimenzije vazdušnih puteva, dok je bimaksilarno anteriorno pozicioniranje dovelo do statistički značajnog povećanja veličine orofarinksa.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Pharyngeal airway changes after bimaxillary orthognathic surgery: Preliminary results, Promene faringealnih vazdušnih puteva nakon bimaksilarne ortognatske hirurgije - preliminarni rezultati",
volume = "143",
number = "5-6",
pages = "267-273",
doi = "10.2298/SARH1506267S"
}
Stefanović, N., Glišić, B., Nikolić, P., Juloski, J.,& Palomo, J. M.. (2015). Pharyngeal airway changes after bimaxillary orthognathic surgery: Preliminary results. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 143(5-6), 267-273.
https://doi.org/10.2298/SARH1506267S
Stefanović N, Glišić B, Nikolić P, Juloski J, Palomo JM. Pharyngeal airway changes after bimaxillary orthognathic surgery: Preliminary results. in Srpski arhiv za celokupno lekarstvo. 2015;143(5-6):267-273.
doi:10.2298/SARH1506267S .
Stefanović, Neda, Glišić, Branislav, Nikolić, Predrag, Juloski, Jovana, Palomo, Juan Martin, "Pharyngeal airway changes after bimaxillary orthognathic surgery: Preliminary results" in Srpski arhiv za celokupno lekarstvo, 143, no. 5-6 (2015):267-273,
https://doi.org/10.2298/SARH1506267S . .

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