Abstract
Objective: To compare the airway changes and risks of sleep apnea after the bimaxillary orthognathic surgery and mandibular setback surgery in the growing patients with skeletal Class III malocclusion . Material and Methods: MEDLINE, PubMed, Cochrane Library, Embase, ISI, Google scholar have been utilized as the electronic databases for performing systematic literature between 2010 to August 2020. The quality of the included studies has been assessed using MINORS. Meta-analysis was performed using Stata 16 software. Results: In electronic searches, a total of 218 potentially relevant abstracts and topics have been found. Finally, 23 papers met the criteria defined for inclusion in this systematic review. The mean difference of upper airway total volume changes between before and after surgery was (MD = 1.86 cm 3 95% CI 0.61 cm 3 -3.11 cm 3 ; p= 0.00) among 14 studies. This result showed that after Mandibular Setback Surgery, there was a statistically significant decrease in the upper airway volume . Conclusion: Class III Patients who undergo bimaxillary surgery show no other significant difference in airways volume after surgery than patients in Class III who undergo mandibular setback alone.
Highlights
Class III malocclusion could be characterized as a skeletal facial deformity joint in the clinical cases described by forwarding the mandibular position about the cranial base and maxilla [1]
The mean difference of upper airway total volume changes between before and after surgery was (MD = 1.86 cm3 95% confidence interval (CI) 0.61 cm3-3.11 cm3; p= 0.00) among 14 studies
Over the 1970s, orthodontic treatment was combined with orthognathic surgery for malocclusion redress because malocclusion issues may reoccur after following a surgical operation because of the traction of the soft tissues and the muscle forces created in the course of its function
Summary
Class III malocclusion could be characterized as a skeletal facial deformity joint in the clinical cases described by forwarding the mandibular position about the cranial base and maxilla [1]. Over the 1970s, orthodontic treatment was combined with orthognathic surgery for malocclusion redress because malocclusion issues may reoccur after following a surgical operation because of the traction of the soft tissues and the muscle forces created in the course of its function. This method led to stable and desirable impacts [4], and it has been proved that it is a tool with the most significant effect to treat the skeletal Class III malocclusion [5]. Probable postsurgical changes can modify the location and traction of the around soft tissues, muscles, hyoid bone, soft palate, and tongue, location as well as the traction of the around Soft tissues, tongue, soft palate, muscles, and hyoid bone, and may alter the airway volumes and an estimate of the oral and nasal cavity [6,7]
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