Komazaki Yuko, Fujiwara Takeo, Ogawa Takuya, Sato Miri, Suzuki Kohta, Yamagata Zentaro, Moriyama Keiji
Section of Maxillofacial Orthognathics Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial/Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Department of Social Medicine, National Research Institute for Child Health and Development, Tokyo, Japan.
Community Dent Oral Epidemiol. 2014 Dec;42(6):572-80. doi: 10.1111/cdoe.12111. Epub 2014 Jun 21.
Headaches are a common problem among adolescents, and malocclusion is a possible risk factor. The purpose of this study was to investigate the association between malocclusion and headache among Japanese adolescents aged 12-15 years using a population-based sample.
A total of 938 adolescents (94.7% of the target population in Koshu City) participated. A modified version of the Index of Orthodontic Treatment Need (IOTN) was used by orthodontists to evaluate occlusal characteristics, and the frequency of headaches (none, rarely, sometimes) was assessed via questionnaire (N = 938). Ordered logistic regression analyses were used to analyze the association between malocclusion and headache.
The prevalence of malocclusion diagnosed using the modified version of the IOTN was 44.9%. Multiple ordered logistic regression analyses showed that the odds ratio (OR) of having malocclusion for headache was 1.38 (95% confidence interval [CI]: 1.06-1.80), after adjustment for demographics, lifestyle, and dental status including orthodontic treatment history and tooth size. Moreover, among occlusal traits, lower crowding was independently associated with headache (OR: 1.64, 95% CI: 1.07-2.51).
We found that malocclusion, especially lower crowding, was associated with headache in a population-based sample of adolescents aged 12-15 years in Japan. Further study is needed to elucidate the mechanisms by which malocclusion affects headache.
头痛是青少年中的常见问题，错牙合畸形是一个可能的风险因素。本研究的目的是使用基于人群的样本，调查12至15岁日本青少年错牙合畸形与头痛之间的关联。
共有938名青少年（甲府市目标人群的94.7%）参与。正畸医生使用改良版的正畸治疗需求指数（IOTN）来评估咬合特征，并通过问卷（N = 938）评估头痛频率（无、很少、有时）。使用有序逻辑回归分析来分析错牙合畸形与头痛之间的关联。
使用改良版IOTN诊断的错牙合畸形患病率为44.9%。多项有序逻辑回归分析显示，在调整人口统计学、生活方式和包括正畸治疗史和牙齿大小在内的牙齿状况后，因头痛而有错牙合畸形的比值比（OR）为1.38（95%置信区间[CI]：1.06 - 1.80）。此外，在咬合特征中，下牙列拥挤与头痛独立相关（OR：1.64，95% CI：1.07 - 2.51）。
我们发现在日本12至15岁青少年的基于人群的样本中，错牙合畸形，尤其是下牙列拥挤，与头痛有关。需要进一步研究以阐明错牙合畸形影响头痛的机制。
