J Korean Acad Oral Health.  2017 Mar;41(1):16-21. 10.11149/jkaoh.2017.41.1.16.

Relationship between cancer and oral health in Korean adults determined using data from the 6th (2013-2014) Korea National Health and Nutritional Examination Survey

Affiliations
  • 1Department of Preventive Dentistry, School of Dentistry, Kyungpook National University, Daegu, Korea. kbsong@knu.ac.kr
  • 2Department of Dental Science, Graduate School, Kyungpook National University, Daegu, Korea.

Abstract


OBJECTIVES
Dental caries and periodontitis are major oral bacterial infections associated with dental plaque. Infection and inflammation play a role in carcinogenesis, and a significant link has been found between some highly prevalent oral and dental diseases and some types of cancer. Therefore, the aim of this study was to evaluate the relationship between cancer and oral health among Korean adults.
METHODS
Data from the 6th Korea National Health and Nutrition Examination Survey were used to analyze the incidence of cancer according to oral health. Demographic and socioeconomic statuses and oral behavior of the participants was analyzed using complex chi-square tests. Logistic regression was used to analyze the relationship between a high DMFT index and cancer by calculating the 95% confidence intervals.
RESULTS
In total, 6,450 case-control subjects were included. Significant difference was observed in the DMFT index, but not in periodontal diseases, between the cases and controls. The odds ratio for cancer was 1.80 (95% confidence interval: 1.18 to 2.73) in the high-risk group. However, no significant difference was observed after adjusting for age, education level, and income.
CONCLUSIONS
The results provide potential evidence of a significant association between cancer and oral disease.

Keyword

Cancer; DMFT index; Korea National Health and Nutrition Examination Survey (KNHANES); Oral health
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