Effects of rapid maxillary expansion on upper airway volume: A three-dimensional cone-beam computed tomography study

被引:29
作者
Abdalla, Yousef [1 ,2 ]
Brown, Louise [3 ]
Sonnesen, Liselotte [4 ]
机构
[1] Univ Copenhagen, Fac Hlth & Med Sci, Dept Odontol, Sect Orthodont, 20 Norre Alle, DK-2200 Copenhagen N, Denmark
[2] James Cook Univ, Coll Med & Dent, Orthodont, Cairns, Australia
[3] Univ Queensland, Sch Dent, Brisbane, Qld, Australia
[4] Univ Copenhagen, Fac Hlth & Med Sci, Dept Odontol, Postgrad Program,Sect Orthodont, Copenhagen, Denmark
关键词
Maxillary expansion; Upper airway volume; Children; CBCT; OBSTRUCTIVE SLEEP-APNEA; PHARYNGEAL AIRWAY; DIMENSIONAL CHANGES; POSTURE; AGE; CBCT;
D O I
10.2319/101218-738.1
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objective: To compare changes in pharyngeal airway volume and minimal cross-sectional area (MCA) between patients undergoing rapid maxillary expansion (RME) and a matched control group and to identify markers for predicting airway changes using cone-beam computed tomography (CBCT). Materials and Methods: Pre- and posttreatment CBCT scans were selected of children who had RME (14 girls and 12 boys; mean age, 12.4 years) along with scans of a control group (matched for chronological age, skeletal age, gender, mandibular inclination) who underwent orthodontic treatment for minor malocclusions without RME. Changes in airway volume and MCA were evaluated using a standardized, previously validated method and analyzed by a mixed-effects linear regression model. Results: Upper airway volume and MCA increased significantly over time for both the RME and matched control groups (P < .01 and P = .05, respectively). Although the RME group showed a greater increase when compared with the matched controls, this difference was not statistically significant. A reduced skeletal age before treatment was a significant marker for a positive effect on the upper airway volume and MCA changes (P < .01). Conclusions: Tooth-borne RME is not associated with a significant change in upper airway volume or MCA in children when compared with controls. The younger the skeletal age before treatment, the more positive the effect on the upper airway changes. The results may prove valuable, especially in RME of young children.
引用
收藏
页码:917 / 923
页数:7
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