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Updated: Feb 8, 2026

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片側口唇口蓋裂を有する小児の上気道パラメータに対する急速上顎拡大の影響：円錐ビームCT（CBCT）研究

Sahal A Alforaidi¹

¹Department of Preventive Dental Science, College of Dentistry, Taibah University, Madinah, Saudi Arabia.

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association

|February 6, 2026

Abstract:

ObjectivesTo evaluate the effect of rapid maxillary expansion (RME) on nasopharyngeal dimensions in children with unilateral cleft lip and palate (UCLP).DesignA prospective case-series longitudinal study.SettingOrthodontic Department, School of Dental Sciences.ParticipantsForty-eight children (30 males and 18 females) aged 8 to 10 years old with UCLP who had maxillary transverse constriction and need maxillary expansion.InterventionRME followed by retention phase.Main outcomeChanges in 3-dimensional nasopharyngeal parameters after RME using cephalometric radiographs and cone-beam computed tomography (CBCT).ResultsThe CBCT analysis revealed that the nasal cavity increased by 1907 mm³ (P < .001), the nasopharynx (NP) increased by 707 mm³ (P = .027), the minimum cross-sectional area increased by 29.98 mm² (P < .001), and the distance between the right and left maxillary sinuses increased by 7.98 mm (P < .001), although the change in the sinus volume was insignificant (P > .05). Cephalometric measurements revealed a statistically significant inferior dislocation of the maxilla after treatment (S-S1, P = .024; N-ANS, P = .017), increase in the inferior anterior and posterior facial height (S-Go, P = .017; ANS-Me, P = .041; N-Me, P = .020).ConclusionRME treatment increased some nasopharyngeal dimensions in children with UCLP and maxillary constriction.

キーワード:

CBCT 上顎狭窄鼻咽腔の次元急速上顎拡大片側口唇口蓋裂

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