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The use of an interdental brush mitigates periodontal health inequalities: the Korean National Health and nutrition examination survey (KNHANES)

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Authors
Lee, Jae-Young; Park, Hyun-Ju; Lee, Hyo-Jin; Cho, Hyun-Jae
Issue Date
2019-07-29
Publisher
BioMed Central
Citation
BMC Oral Health, 19(1):168
Keywords
Interdental brushPeriodontal health inequalityKNHANESPeriodontitis
Abstract
Background
The purpose of this study was to evaluate the mitigating effect of the use of interdental brushes on periodontal health inequality.

Methods
This study was based on the data acquired in the Sixth Korea National Health and Nutrition Examination Survey (KNHANES VI; 2013–2015). A total of 17,583 participants (7,633 males and 9,950 females)) aged 19 years or older completed the KNHANES VI between 2013 and 2015. Multivariable logistic regression analysis was performed using socioeconomic characteristics (sex, age, level of education, individual income), personal health practice (smoking, toothbrushing, dental flossing, interdental brushing, dental clinic visiting), systematic medical factors (diabetes mellitus, hypercholesterolemia, hypertension, obesity) and the community periodontal index. We confirmed differences in the prevalence of periodontal disease with the use of an interdental brushes stratified according to individual income.

Results
Three logistic regression models adjusted for covariates hierarchically. In all models, individuals who used an interdental brush were not significantly different from individuals who did not use an interdental brush. The adjusted odds ratio (OR) for interdental brushing was 0.918 with a 95% confidence intervals (CIs) of 0.797–1.057. When periodontal disease was the outcome of the model, the lowest income group had 1.266 (95% CIs 1.066 to 1.502) times the odds of having periodontal disease than the highest income group. In interdental brush nonusers, the lowest income group had 1.276 (95% CI 1.061–1.533) times the odds of having periodontal diseases than the highest income group. However, in the interdental brush users, there were no significant differences in periodontal disease prevalence among income groups.

Conclusions
The results suggest that the use of interdental brushes could alleviate periodontal health inequality.
ISSN
1472-6831
Language
English
URI
http://hdl.handle.net/10371/162595
DOI
https://doi.org/10.1186/s12903-019-0858-6
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dental Research Institute (치학연구소)Journal Papers (저널논문_치학연구소)
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