Relationship between Acquisition Stage of Mouth-rinsing and Developmental Age in Children with Autism Spectrum Disorder

DOI
  • ARAKI Mami
    Department of Pediatric Dentistry, School of Dentistry, Aichi-Gakuin University
  • NAWA Hiroyuki
    Department of Pediatric Dentistry, School of Dentistry, Aichi-Gakuin University
  • FUJII Miki
    Department of Pediatric Dentistry, School of Dentistry, Aichi-Gakuin University
  • HORIBE Moritaka
    Department of Pediatric Dentistry, School of Dentistry, Aichi-Gakuin University
  • ARIKAWA Tomoko
    Department of Pediatric Dentistry, School of Dentistry, Aichi-Gakuin University
  • MIZOGUCHI Richiko
    Toyota Municipal Child Development Center, Nozomi Clinic Pediatric Dentistry
  • ZUSHI Yoshie
    Toyota Municipal Child Development Center, Nozomi Clinic Pediatric Dentistry
  • TAKAHASHI Osamu
    Toyota Municipal Child Development Center, Nozomi Clinic Child Psychiatry
  • SHIMAZAKI Yoshihiro
    Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi-Gakuin University
  • FUKUTA Osamu
    Department of Pediatric Dentistry, School of Dentistry, Aichi-Gakuin University

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Other Title
  • 自閉スペクトラム症児における洗口の習得段階と発達年齢との関連

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Abstract

<p>This study examined the relationship between rinsing the mouth in children with autism spectrum disorder and developmental age. The subjects were 50 children aged 3–6 years old with autism spectrum disorder. Five categories of children’s mouth-rinsing ability were evaluated based on behavioral observations of mouth-rinsing. Acquisition of mouth-rinsing ability was further categorized into “no acquisition”, “moderate acquisition”, and “acquisition”. Relationships between mouth-rinsing ability and chronological age as well as developmental age were first analyzed. The cutoff value of optimal developmental age was calculated in order to distinguish the acquisition stage of mouth-rinsing.</p><p>A total of 14％ of children were “unable to rinse the mouth at all”, 18％ were “able to bring a cup to the mouth”, 10％ were “able to spit water from the mouth”, 34％ were “able to spit after holding water in the mouth”, and 24％ were “able to spit after holding and moving the water around the mouth”. There were positive correlations between these mouth-rinsing competencies and developmental age, suggesting that basic mouth-rinsing behavior had an acquisition stage that was associated with developmental age. In addition, the best cutoff value between “no acquisition” and “moderate acquisition” was 2 years 0 months and the best cutoff value between “moderate acquisition” and “acquisition” was 2 years 6 months. These results indicate that it is effective to begin to practice spitting water at a developmental age of 2 years 0 months, and to begin to practice moving the cheeks at a developmental age of 2 years 6 months.</p>

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