Cone-beam CT evaluation of nasomaxillary complex and upper airway following rapid maxillary expansion.
- Author:
Lei LI
1
;
Suqing QI
2
;
Email: QSQ7615038@163.COM.
;
Hongwei WANG
1
;
Sufeng REN
1
;
Jiandong BAN
1
Author Information
- Publication Type:Journal Article
- MeSH: Cone-Beam Computed Tomography; Female; Humans; Imaging, Three-Dimensional; Male; Maxilla; diagnostic imaging; Nose; diagnostic imaging; Palatal Expansion Technique; Palate; diagnostic imaging; Pharynx; diagnostic imaging
- From: Chinese Journal of Stomatology 2015;50(7):403-407
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVESTo evaluate the naso-maxillary complex width and pharyngeal airway volume changes after rapid maxillary expansion (RME).
METHODSThirty-five patients were selected (18 males, 17 females, mean age, 12.1 ± 1.1 years). All patients underwent orthodontic treatment with Hyrax palatal expanders. Cone-beam CT (CBCT) scan was taken before treatment (T0), 16 days (T1) and three months (T3) after RME. Naso-maxillary complex width and pharyngeal airway volume were measured.
RESULTSAfter treatment the width of piriform aperture and maxillary width were significantly increased compared with that before treatment (P < 0.05). Three months after RME, no statistical difference was found in maxillary width compared with that before treatment. The nasopharyngeal volume significantly increased by 29.9% compared with that before treatment (P < 0.05), and the volume remained relatively stable after three months.
CONCLUSIONSRME resulted in a significant increase in the naso-maxillary complex width and nasopharyngeal volume.
