The growth change of the palate between normal children and Duchenne muscular dystrophy patients

• NAKAMICHI,Koji

  Division of Oral Health, Growth & Development, Faculty of Dental Science, Kyushu University

• NAKATA,Shunsuke

  Division of Oral Health, Growth & Development, Faculty of Dental Science, Kyushu University

• NAKASIMA,Akihiko

  Division of Oral Health, Growth & Development, Faculty of Dental Science, Kyushu University

Bibliographic Information

Other Title

• 健常者とDuchenne型進行性筋ジストロフィー症患者における口蓋形態の成長変化

Abstract

In patients with Duchenne muscular dystrophy (DMD) who have hypofunction of muscles, open bite appears with the progress of the disease. Many DMD patients also have the enlarged tongue which may cause the abnormal growth change of the palate. The purpose of this study is to compare the growth change of the palate between normal children and that of DMD patients. Samples consisted of 31 normal children (13 boys and 18 girls) and 21 boys with DMD from 9 to 15 years in age. The total number of longitudinal maxillary dental casts were 202 in normal children (81 in boys and 121 in girls) and 111 in DMD patients. Measurement variables were the palatal width, depth, cross-section area and the palatal angle of the cross section in the maxillary first molar. There was no sex difference in almost all measurement variables in normal children. The palatal angle tended to decrease and other variables increase in normal children every year. It is likely that the growth peak in the palate of girls comes earlier than that of boys. The palatal width, depth, cross-section area in DMD patients were significantly larger than those of normal boys, but little change in DMD patients was observed about the palatal angle. We concluded that DMD patients had the specific growth pattern of the palate because of overgrowth of the maxillary alveolar processes by compensation to the enlarged tongue, the increase of the tongue pressure, the disorder of the pharyngeal airway maintenance and weakened masticatory muscles.

Journal

• Orthodontic waves : journal of the Japanese Orthodontic Society : 日本矯正歯科学会雑誌

  Orthodontic waves : journal of the Japanese Orthodontic Society : 日本矯正歯科学会雑誌 62 (5), 333-345,

  日本矯正歯科学会

Keywords

• Duchenne型進行性筋ジストロフィー
• 口蓋形態
• 成長変化

Details

• CRID: 1541980095210224256
• NII Article ID: 110003988321
• NII Book ID: AA11222509
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10631649
• Web Site: https://search.jamas.or.jp/link/ui/2004124573
• Text Lang: ja
• Data Source:
  • NDL-Digital
  • CiNii Articles