Analysis of the relation between dental arch size and upper airway morphology in patients with obstructive sleep apnea hypoventilation syndrome

VernacularTitle:阻塞性睡眠呼吸暂停低通气综合征患者的牙弓与上气道形态变化及相关性分析
Author: Chao XU ; Yuping XIE ; Meng QIN ; Jianmin HE ; Yibo YU ; Hong KANG ; Wei MA ; Peilin HUI
Keywords: Dental arch; Obstructive sleep apnea hypoventilation syndrome(OSAHS); Cone-beam CT(CBCT)
From: Journal of Practical Stomatology 2016;32(6):834-838
CountryChina
Language:Chinese
Abstract: Objective:To study the anatomical correlation between dental arch and the volume of upper airway in patients with obstruc-tive sleep apnea hypoventilation syndrome(OSAHS). Methods: Dental arch architecture and upper airway volume were measured by cone beam CT(CBCT) in the subjects with OSAHS(n=22) and without OSAHS(n=19). The correlation between dental arch and the supper airway volume in OSAHS patients was analyzed. Results:The length of the upper dental arch and the height of palate in OSAHS patients were larger than those of the controls(All, P<0. 05). Cross-sectional area of nasopharynx and retropalatal and the total volume of upper airway were negatively correlated with the palatal height and upper dental arch length(P<0. 05), while positively correlated with upper dental arch of molar regions(P<0. 05). Conclusion:The abnormal shape of upper dental arch is related to the airway vol-ume of nasopharynx and retropalatal region in patients with OSAHS.