Clinicostatistical Study on Cleft Lip and/or Palate Patients at Orthodontic Clinic of Meikai University Hospital in the Past 20 Years

DOI
  • SUZUKI Masaharu
    Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry
  • NOJIRI Naoko
    Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry
  • FUJIMOTO Mai
    Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry
  • HASEGAWA Hiroya
    Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry
  • MANO Mikiko
    Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry
  • SUDA Naoto
    Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry

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  • 明海大学病院矯正歯科における過去20年間の口唇裂・口蓋裂患者の実態調査

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Abstract

In order to evaluate cleft lip and/or palate （CLP） patients visiting Meikai University Hospital, a clinicostatistical study was performed from January 2001 to December 2020. <br>1．The number of CLP cases was 284 （5.2%） of all cases who underwent orthodontic treatment. The number of CLP cases increased by 20.2% from the first decade to the last decade. <br>2．The most common age at the first visit was 0 years old （110 cases, 38.7%）, followed by 5 years old （26 cases, 9.2%）, 6 years old （23 cases, 8.1%）, and 4 years old （22 cases, 7.7%）. There was a dramatic increase in the number of 0-year-old infants at the first visit from the first decade （17 cases） to the last decade （93 cases）. <br>3．Of the 284 cases, unilateral CLP, cleft palate （CP）, unilateral cleft lip and alveolus （CLA）, bilateral CLP, bilateral CLA, and cleft lip accounted for 39.4%, 19.4%, 17.6%, 17.2%, 3.2%, and 3.2%, respectively. <br>4．There was a 2.1-fold higher ratio of males than females in CP cases. However, there was no gender difference in other types of clefts. <br>5．Hospitals affiliated to Saitama Medical University were the largest referring hospitals （63.6% and 53.6% in the first and last decades, respectively）. 70.5% and 82.6% of cases were referred by clinics of plastic surgery in the first and last decades, respectively. <br>6．After deciduous dentition was attained, there was an increase in cases without crossbite from 28.9% in the first decade to 53.8% in the last decade, even without active orthodontic treatment. In contrast, in the case of bilateral CLP, this value decreased from 15.4% in the first decade to 12.5% in the last decade. <br>7．Presurgical infant orthopedics were performed in 13.2% of all cases in the first decade, dramatically increasing to 50.3% in the last decade. 83.3% of cases who underwent presurgical infant orthopedics prior to 2015 returned to our clinic. <br>These findings indicate the role of our clinic was changed by improving surgical outcomes in cheiloplasty and palatoplasty and the occlusal condition before orthodontic treatment.

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