CKD May Be Tied to Higher Risk for Tooth Loss
THURSDAY, July 24, 2025 -- Chronic kidney disease (CKD) appears to be associated with a higher risk for tooth loss, with a higher prevalence of CKD seen among individuals with fewer than 20 teeth, according to a study published online July 20 in Renal Failure.
Na-Yeong Kim, from the Chonnam National University School of Dentistry, and Ki-Ho Chung, from the Chonnam National University, both in Gwangju, South Korea, used data from the Korea National Health and Nutrition Examination Survey (KNHANES) to confirm the association between CKD and number of teeth. Raw data were obtained from the sixth and seventh KNHANES, targeting 16,125 adults aged 40 years or older.
The researchers found that CKD prevalence was significantly higher among individuals with fewer than 20 teeth. After adjusting for age, sex, household income, education, alcohol consumption, smoking, body mass index, hypertension, diabetes mellitus, angina, myocardial infarction, stroke, dyslipidemia, and performance of an oral examination within one year, daily toothbrushing frequency, and hygiene product use, CKD was associated with having fewer than 20 teeth (odds ratio, 1.34).
"When establishing a comprehensive health prevention and management plan for individuals with CKD, it is thought that efforts to link programs to improve oral health will be necessary," the authors write. "In the future, large-scale longitudinal studies adjusted for additional risk factors are needed to clarify the relationship between tooth loss and CKD."
Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.
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