title: Submucous cleft palate: variations in bony defects of the hard palate.
abstract: We have analysed bony defects of the hard palate in patients with submucous cleft palate to find out whether velopharyngeal insufficiency (VPI) is dependent on the extent of these defects. We evaluated the maxillofacial structures associated with cleft palate by 3-dimensional computed tomography (CT) in 23 children diagnosed with submucous cleft palate. Bony defects of the hard palate were divided into Type I, defined as absent posterior nasal spine (n=12), Type II, V-shaped bony notch (moderate, n=7), and Type III, as bony defect extending into the incisive foramen (severe, n=4) defects, respectively. VPI was found in 10, 3, and 4 patients, respectively. Neither VPI nor the degree of bifid uvula was significantly associated with the types of bony defects.
authors: Department of Oral-maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
authors: Yoshiyuki
authors: Y
authors: Mori
authors: Kazuto
authors: K
authors: Hoshi
authors: Tsuyoshi
authors: T
authors: Takato
authors: Michiko
authors: M
authors: Takahashi
authors: Yukiko
authors: Y
authors: Hirano
authors: Yuki
authors: Y
authors: Kanno
authors: Kazumi
authors: K
authors: Ohkubo
authors: Hideto
authors: H
authors: Saijo
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002972:Cleft Palate / Q000145:classification* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D008297:Male; D021362:Palate, Hard / Q000002:abnormalities* / Q000000981:diagnostic imaging; D010609:Pharyngeal Muscles / Q000637:transplantation; D010700:Phonetics; D013064:Speech Disorders / Q000209:etiology; D013524:Surgical Flaps / Q000637:transplantation; D036542:Tomography, Spiral Computed / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods; D014609:Uvula / Q000002:abnormalities; D014681:Velopharyngeal Insufficiency / Q000209:etiology / Q000601:surgery
keywords: Bifid uvula; Bony defect; Submucous cleft palate; Velopharyngeal insufficiency