scholarly journals Dimensional changes of maxillary sinuses and pharyngeal airway in Class III patients undergoing bimaxillary orthognathic surgery

2013 ◽  
Vol 83 (5) ◽  
pp. 824-831 ◽  
Author(s):  
Eleni Panou ◽  
Melih Motro ◽  
Mustafa Ateş ◽  
Ahu Acar ◽  
Nejat Erverdi
Keyword(s):  
Orthognathic Surgery ◽  
Class Iii ◽  
Cross Sectional ◽  
Dimensional Changes ◽  
Pharyngeal Airway ◽  
Mandibular Setback ◽  
Bimaxillary Orthognathic Surgery ◽  
Significant Change ◽  
The Relationship ◽  
Maxillary Sinuses

ABSTRACT Objective: To evaluate the pharyngeal airway and maxillary sinus volume changes after mandibular setback surgery combined with maxillary advancement and/or impaction surgery. Materials and Methods: Seventeen Class III skeletal patients (11 females, 6 males) who required bimaxillary orthognathic surgery were selected. Volumetric measurements were performed using cone beam computed tomography (CBCT) scans preoperatively and 3.9 ± 0.87 months postoperatively. All the CBCT scans were assessed and analyzed using MIMICS 14.0 software. Preoperative and postoperative volumes of pharyngeal airway and maxillary sinuses and the relationship between the amounts of surgical movement of the jaws and the above volumes were statistically evaluated. Results: The pharyngeal airway area presented no significant change except for the lower and total pharyngeal airway volumes in males, in whom a significant decrease was observed (4196.27 ± 2061.11 mm3 and 3375.53 ± 3624.67 mm3, respectively). No significant change was observed in the minimal cross-sectional area of the pharyngeal airway. There was a significant decrease in the volume of the maxillary sinuses after the surgery by 3448.09 ± 3315.56 mm3. No correlation was found between the amount of skeletal movement and the change in the volume of pharyngeal airway or maxillary sinuses. Conclusion: There was a significant decrease only for lower and total pharyngeal airway volumes in males and a significant decrease in the volume of the maxillary sinuses.

scholarly journals Evaluation of upper airways after bimaxillary orthognathic surgery in patients with skeletal Class III pattern using cone-beam computed tomography

2016 ◽  
Vol 21 (1) ◽  
pp. 34-41 ◽  
Author(s):  
Marília Spínola Azevêdo ◽  
Andre Wilson Machado ◽  
Inêssa da Silva Barbosa ◽  
Lucas Senhorinho Esteves ◽  
Vanessa Álvares Castro Rocha ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Orthognathic Surgery ◽  
Upper Airway ◽  
Cone Beam ◽  
Class Iii ◽  
Upper Airways ◽  
Mandibular Setback ◽  
Maxillary Advancement ◽  
Bimaxillary Orthognathic Surgery

Introduction: It has been suggested that mandibular setback surgery, combined or not with maxillary advancement as a treatment alternative for patients with mandibular prognathism, can induce changes in upper airway space (UAS). Therefore, this study aimed to assess the response of the upper airway in the oropharynx region of patients with Class III skeletal pattern that underwent bimaxillary orthognathic surgery (maxillary advancement and mandibular setback) combined with mentoplasty. Material and Methods: The sample comprised 26 cone-beam computed tomography (CBCT) scans of 13 patients. The examination was taken before and after surgery. UAS volume, sagittal area, length and minimal axial area with its width, depth and location, were measured with the aid of Dolphin ImagingTM software version 11.5 Premium. Data were statistically treated by applying Shapiro-Wilk test and Student's paired t-test, considering as statistically significant the results of which p-value was lower than 0.05. Results: No statistically significant differences were found in any measurements evaluated. Conclusions: No significant changes were observed in the oropharynx after bimaxillary orthognathic surgery and mentoplasty.

Three-Dimensional Changes in Pharyngeal Airway in Skeletal Class III Patients Undergoing Orthognathic Surgery

2011 ◽  
Vol 69 (11) ◽  
pp. e401-e408 ◽  
Author(s):  
Ji-Suk Hong ◽  
Yang-Ho Park ◽  
Yoon-Ji Kim ◽  
Soon-Min Hong ◽  
Kyung-Min Oh
Keyword(s):  
Orthognathic Surgery ◽  
Three Dimensional ◽  
Class Iii ◽  
Skeletal Class ◽  
Dimensional Changes ◽  
Pharyngeal Airway

Pharyngeal Airway Changes in Class III Patients Treated With Double Jaw Orthognathic Surgery—Maxillary Advancement and Mandibular Setback

2012 ◽  
Vol 70 (11) ◽  
pp. e639-e647 ◽  
Author(s):  
Otávio Emmel Becker ◽  
Rafael Linard Avelar ◽  
Juliana Gonçalvez Göelzer ◽  
André do Nascimento Dolzan ◽  
Orion Luíz Haas Júnior ◽  
...  
Keyword(s):  
Orthognathic Surgery ◽  
Class Iii ◽  
Pharyngeal Airway ◽  
Mandibular Setback ◽  
Maxillary Advancement

scholarly journals How does bimaxillary orthognathic surgery change dimensions of maxillary sinuses and pharyngeal airway space?

2020 ◽  
Vol 90 (5) ◽  
pp. 715-722 ◽  
Author(s):  
Luiza Roberta Bin ◽  
Liogi Iwaki Filho ◽  
Amanda Lury Yamashita ◽  
Gustavo Nascimento de Souza Pinto ◽  
Rui Amaral Mendes ◽  
...  
Keyword(s):  
Orthognathic Surgery ◽  
Mixed Model ◽  
Linear Measurements ◽  
Pharyngeal Airway ◽  
Mandibular Setback ◽  
Kappa Test ◽  
Maxillomandibular Advancement ◽  
Maxillary Advancement ◽  
Bimaxillary Orthognathic Surgery ◽  
Group 2

ABSTRACT Objectives To assess changes in the maxillary sinus (MS) and pharyngeal airway space (PAS) after bimaxillary orthognathic surgery using cone-beam computed tomography (CBCT). Materials and Methods The CBCT scans of 48 patients were divided into two groups: group 1: maxillary advancement and mandibular setback (n = 24); group 2: maxillomandibular advancement (n = 24). The CBCTs were acquired 1 to 2 months preoperatively and 6 to 8 months postoperatively. A kappa test was used to determine intra- and interexaminer agreement. Area, volume, and linear measurements of MSs and PASs obtained before and after surgery were compared using a mixed model (P < .05). Results All variables of the MS showed significant postsurgical reductions in both groups, except the MS length, which showed a significant increase in group 2. Volume and minimum axial area of PAS showed statistically significant postsurgical increases in both groups (P < .05). Conclusions Despite the reduction in the MS and the increase in the PAS, results indicated that the airway was not negatively affected after maxillomandibular advancement and maxillary advancement with mandibular setback.

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