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논문 기본 정보

자료유형
학술저널
저자정보
Mohammad Saleh Khaghaninejad (Department of Oral and Maxillofacial Surgery School of Dentistry Shiraz University of Medical Scien) Leila Khojastehpour (Department of Oral and Maxillofacial Radiology School of Dentistry Shiraz University of Medical Sci) Hossein Danesteh (Department of Oral and Maxillofacial Surgery School of Dentistry Shiraz University of Medical Scien) Mehdi Changizi (Oral and Maxillofacial Surgery Resident Department of Oral and Maxillofacial Surgery Shiraz Univers) Farzaneh Ahrari (Dental Research Center School of Dentistry Mashhad University of Medical Sciences Mashhad Iran)
저널정보
대한악안면성형재건외과학회 Maxillofacial Plastic Reconstructive Surgery Maxillofacial Plastic Reconstructive Surgery 제44권
발행연도
2022.1
수록면
1 - 9 (9page)
DOI
10.1186/s40902-022-00352-8

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ObjectiveThis study was conducted to compare changes in pharyngeal airway after different orthognathic procedures in subjects with class III deformity.MethodsThe study included CBCT scans of 48 skeletal class III patients (29 females and 19 males, mean age 23.50 years) who underwent orthognathic surgery in conjunction with orthodontic treatment. The participants were divided into three groups of 16, as follows: Group 1, mandibular setback surgery; group 2, combined mandibular setback and maxillary advancement surgery; and group 3, maxillary advancement surgery. CBCT images were taken 1 day before surgery (T0), 1 day (T1), and 6 months (T2) later. The dimensions of the velopharynx, oropharynx, and hypopharynx were measured in CBCT images.ResultsIn all groups, there was a significant decrease in airway variables immediately after surgery, with a significant reversal 6 months later (P < 0.05). In subjects who underwent maxillary advancement, the airway dimensions were significantly greater at T2 than the T0 time point (P < 0.05), whereas in the mandibular setback and bimaxillary surgery groups, the T2 values were lower than the baseline examination (P < 0.05). The alterations in airway variables were significantly different between the study groups (P < 0.05).ConclusionsThe mandibular setback procedure caused the greatest reduction in the pharyngeal airway, followed by the bimaxillary surgery and maxillary advancement groups, with the latter exhibiting an actual increase in the pharyngeal airway dimensions. It is recommended to prefer a two-jaw operation instead of a mandibular setback alone for correction of the prognathic mandible in subjects with predisposing factors to the development of sleep-disordered breathing.Introduction

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