ArticleScientific reports2017
Differential changes in the adenoids and tonsils in Japanese children and teenagers: a cross-sectional study.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Conceptual growth curves of oropharyngeal soft tissues and craniofacial skeletal structures: clinical implications for pediatric airway management.Sleep & breathing = Schlaf & Atmung · 2026Review
- Questionnaire-based evaluation of nasal breathing, oral habits, and myofunctional disorders in children after adenoidectomy.Journal of orthodontic science · 2026Article
- Article
- Article
- Longitudinal Morphological Changes in the Adenoids and Tonsils in Japanese School Children.Journal of clinical medicine · 2021Article
- Prevalence of an incompetent lip seal during growth periods throughout Japan: a large-scale, survey-based, cross-sectional study.Environmental health and preventive medicine · 2021Article
- Patterns of adenoid and tonsil growth in Japanese children and adolescents: A longitudinal study.Scientific reports · 2018Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
When adenoids (Ad) and tonsils (Tn) become hypertrophied, craniofacial and general body growth is affected. However, there are no objective explicit criteria for evaluating the size of the Ad and Tn, and their respective growth patterns remain unclear. This study determined the average proportions of the Ad and Tn sizes to the upper airway area at various developmental stages in Japanese individuals. Lateral cephalometric radiographs were obtained from 300 Japanese children and teenagers (150 boys and 150 girls, aged 6-20 years), and the respective proportions of Ad to the nasopharynx (Ad/Np) and Tn to the oropharynx (Tn/Op) in the upper airway were determined. Average and standard deviation (SD) were calculated for each of the 5 age groups: lower primary school, upper primary school, junior high school, senior high school, and young adults. We investigated the correlation between age and growth patterns of Ad and Tn, and determined the average Ad/Np and Tn/Op. There was an age-related decrease in Ad and Tn size, and a significant positive correlation between Ad/Np and Tn/Op values in the upper primary school group. Both Ad/Np and Tn/Op decrease as individuals approach adulthood. However, the growth patterns of the Ad/Np and Tn/Op differ from each other.
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