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Open AccessArticle

Factors Related to the Number of Existing Teeth among Korean Adults Aged 55–79 Years

1
Department of Preventive and Community Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
2
BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea
3
Department of Dental Hygiene, College of Health and Medical Sciences, Cheongju University, Cheongju 28503, Korea
*
Author to whom correspondence should be addressed.
Indicates that the two authors contributed equally to the manuscript.
Int. J. Environ. Res. Public Health 2019, 16(20), 3927; https://doi.org/10.3390/ijerph16203927
Received: 18 September 2019 / Revised: 7 October 2019 / Accepted: 14 October 2019 / Published: 16 October 2019
(This article belongs to the Special Issue Oral Health Inequalities in the World)
This study aimed to determine the association between the number of existing teeth (NET) and socioeconomic status (SES), oral health-related behaviours, and metabolic syndrome in Korean adults aged 55–79 years. The study included 3255 adults who underwent oral health examinations and answered questionnaires regarding SES, oral health-related behaviours, and metabolic diseases in the Sixth Korea National Health and Nutrition Examination Survey (2013–2015). The dependent variable was the binary status based on the median NET in each age group. The independent variables were based on SES, oral health-related behaviours, and the presence of metabolic syndrome. The study findings showed that the factors associated with the NET were sex, household income, education level, region of residence, daily toothbrushing frequency, dental visit within 1 year, smoking, and metabolic syndrome. NET was lower in males (adjusted OR: 0.74), in low household income group (adjusted OR: 0.77), in primary school graduates (adjusted OR: 0.53) and in rural residents (adjusted OR: 0.78). The interventions aimed at preserving existing teeth in elderly population should consider their SES, oral health-related behaviours, and metabolic syndrome and overhauling current oral healthcare system and redefining the roles of oral health professionals. View Full-Text
Keywords: dental caries; metabolic syndrome; oral health behaviour; periodontitis; socioeconomic status; tooth loss dental caries; metabolic syndrome; oral health behaviour; periodontitis; socioeconomic status; tooth loss
MDPI and ACS Style

Lee, J.-H.; Yi, S.-K.; Kim, S.-Y.; Kim, J.-S.; Kim, H.-N.; Jeong, S.-H.; Kim, J.-B. Factors Related to the Number of Existing Teeth among Korean Adults Aged 55–79 Years. Int. J. Environ. Res. Public Health 2019, 16, 3927.

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