Cephalometric changes after maxillomandibular advancement in obstructive sleep apnea patients

Caprioglio, Alberto; Niżankowska-Jędrzejczyk, Agata; Moretta, D. Della; Loster, Bartłomiej; Ronchi, Paolo

doi:10.5604/00114553.1092262

Cited by 1 publication

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“…Once the radiographic image was obtained, the cephalometric analysis was performed using the cephalometric tracing proposed by Caprioglio et al [12]. Through the identification of points, angles, and anatomical reference planes, cephalometry enables the following to be examined in detail: the craniofacial structure, the sagittal and vertical skeletal relationship, the dental relationship, the dental-basal relationship, the profile of the soft tissue, and the upper airway patency.…”

Section: Evaluation Tools 221 Cephalometric Analysismentioning

confidence: 99%

Upper Airway Changes and OSAS Risk in Patients after Mandibular Setback Surgery to Treat III Class Skeletal Malocclusion

Ronchi,

Saccomanno,

Disconzi

et al. 2023

JPM

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Introduction: Mandibular setback surgery (MSS) is one of the treatment options to resolve mandibular prognathism in patients suffering from skeletal class III malocclusion, which cannot be treated with simple orthodontic treatment. The mandibular setback surgical operation can involve changes in the pharyngeal morphology, resulting in a narrowing of the posterior airway space (PAS). This aspect is associated with an increase in airflow resistance, which increases the risk of developing snoring or obstructive sleep apnea syndrome (OSAS). The aim of this study is to evaluate the medium- and long-term effects of mandibular setback surgery on the upper airways and its possible association with OSAS in patients suffering from class III skeletal malocclusion. Material and methods: A total of 12 patients (5 males and 7 females) were enrolled in this study. The statistical tests highlighted a significant change in the PAS and BMI values in relation to T0, before surgery (PAS: 12.7 SD: 1.2; BMI: 21.7 SD: 1.2), and T1, after surgery (PAS: 10.3 SD: 0.6, p < 0.01; BMI: 23.8 SD: 1.2, p < 0.05). Sample size was calculated to detect an effect size of 0.9, with statistical power set at 0.8 and the significance level set at 0.05. Results: No statistically significant correlation was found between the extent of mandibular setback, PAS and BMI change. Conclusion: This study confirms the effects of mandibular setback surgery on the upper airways, reporting a statistically significant PAS reduction in the medium- and long-term follow-up. On the other hand, no direct correlation was identified with OSAS risk, at least for the small mandibular setback (<8 mm), despite the statistically significant increase in BMI.

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Section: Evaluation Tools 221 Cephalometric Analysismentioning

confidence: 99%