2024-03-28T22:55:38Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:02000360
2022-12-15T04:13:40Z
432:433:434
453:455
Prevalence of an incompetent lip seal during growth periods throughout Japan : A large-scale, survey-based, cross-sectional study
日本における小児期の口唇閉鎖不全の有病率 : 大規模調査に基づく横断的研究
Nogami, Yukiko
野上, 有紀子
Incompetent lip seal
abnormal oral habits
epidemiology
Japanese children
orofacial morphology
mouth breathing
新潟大学
Niigata University
博士(歯学)
Background: Systemic and local factors may lead to disruption of craniofacial growth and development, causing an imbalance between the orofacial skeleton, muscle and soft tissue, dental occlusion, and the dental arch during growth periods. We aimed to reveal whether the prevalence of incompetent lip seal (ILS) varies with age and region, as well as to clarify the factors related to an ILS, in a national, large-scale epidemiological study. Methods: We surveyed 3,399 children, from 3 to 12 years of age, visiting 66 pediatric dental clinics throughout Japan. For this survey, we employed a questionnaire consisting of 44 questions regarding daily health conditions and lifestyle habits. We evaluated the differences in ILS prevalence by age and region (using a Cochran-Armitage test for trend and a Kruskal-Wallis test), and the relationship between ILS and factors investigated in the questionnaire (using Spearman's rank correlation coefficient). Results: We observed that 30.7% of Japanese children exhibited an ILS, and that the ILS rate increased with age (p < 0.001). There were no regional differences in the rate of ILS in Japanese children (p = 0.506). We revealed that 12 of 44 survey items exhibited a statistically significant correlation with ILS (p < 0.001), using Spearman's rank correlation coefficient. These items involved orofacial morphology, mouth breathing, and possibly, allergic rhinitis. Conclusion: The rate of ILS seems to increase with age in children, throughout Japan. Therefore, this disorder may not self-correct during the growth periods in these children. Guidelines are required for pediatric dentists to recognize ILS among children aged 3–12 years.
Environmental Health and Preventive Medicine. 2021, 26(1), 11.
新大院博(歯)第472号
doctoral thesis
2021-03-23
application/pdf
application/pdf
甲第4864号
https://niigata-u.repo.nii.ac.jp/record/2000360/files/r2ndk472_a.pdf
https://niigata-u.repo.nii.ac.jp/record/2000360/files/r2ndk472.pdf
eng
https://doi.org/10.1186/s12199-021-00933-5
【○!C】 The Author(s). 2021
open access