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Inadequate anti-inflammatory diets are associated with an increased risk of tooth loss

  • Journal of Korean society of Dental Hygiene
  • Abbr : J Korean Soc Dent Hyg
  • 2025, 25(4), pp.297~310
  • DOI : 10.13065/jksdh.2025.25.4.3
  • Publisher : Korean Society of Dental Hygiene
  • Research Area : Medicine and Pharmacy > Dentistry
  • Received : June 16, 2025
  • Accepted : July 25, 2025
  • Published : August 30, 2025

Lee Yong-Jin 1,  Go Hyeon-Jeong 2,  Kang Jae-Min 3,  Lee Young-Eun 4

1Department of Preventive Dentistry, School of Dentistry, Kyungpook National University
2Department of Preventive Dentistry, School of Dentistry, Kyungpook National University, Institute for Translational Research in Dentistry, Kyungpook National University
3Department of Dental Technics, Daegu Health College
4Department of Dental Hygiene, Daegu Health College

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ABSTRACT

Objectives: Anti-inflammatory dietary patterns and their association with tooth loss remain underexplored, despite extensive research on diet and chronic disease. This study aimed to investigate the association between dietary inflammatory potential and tooth loss due to dental disease. Methods: Data from the 2015-2016 and 2017-March 2020 waves of the United States National Health and Nutrition Examination Survey were analyzed. A total of 3,828 adults aged ≥20 years who underwent oral examinations and provided two days of dietary recall data for the calculation of the Dietary Inflammatory Index (DII), which is a measure of dietary inflammatory potential, were included. Lower DII scores indicate adherence to an anti-inflammatory dietary pattern. Multivariable linear and negative binomial regression models were used for the analyses. Results: Compared with individuals in the lowest DII quintile (indicative of an anti-inflammatory diet), those in the highest quintile (pro-inflammatory diet) exhibited a significantly higher mean ratio (MR) of teeth lost: 1.387 (95% CI: 1.128-1.705). This trend was consistently observed in both the 40–59 and ≥60 years age groups. Conclusions: This study found a significant inverse association between anti-inflammatory dietary intake and tooth loss. Targeted dietary counseling and preventive education are essential for reducing the risk of tooth loss in individuals with high consumption of pro-inflammatory nutrients.

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