{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T19:46:45Z","timestamp":1782244005712,"version":"3.54.5"},"reference-count":162,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T00:00:00Z","timestamp":1782172800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medical Sciences"],"abstract":"<jats:p>Obesity and dental caries are highly prevalent chronic conditions with significant global health impact. Although an association between these diseases has been suggested, the nature of this relationship remains unclear. This state-of-the-art review aims to synthesize current evidence on the interplay between obesity and dental caries, focusing on shared risk factors, salivary alterations and underlying biological mechanisms. Evidence indicates that obesity and dental caries share common behavioral and socioeconomic determinants, namely unhealthy dietary patterns with high intake of free sugars, poor oral hygiene habits and social disadvantage. Salivary alterations observed in obesity may also create a more cariogenic oral environment. Additionally, inflammatory mediators, oxidative stress markers and changes in the oral microbiome suggest biologically plausible links between both conditions. However, current data does not support a direct causal relationship, but rather a complex multifactorial interaction between obesity and dental caries driven by shared risk factors and modifiable behaviors. Preventive strategies should adopt an integrated approach targeting shared determinants, particularly diet, oral hygiene habits and socioeconomic status. Nevertheless, the predominance of cross-sectional evidence limits causal inference, highlighting the need for longitudinal studies that simultaneously assess obesity and dental caries, and that address salivary biomarkers using standardized methodologies across different age groups to clarify underlying mechanisms and assess their clinical relevance.<\/jats:p>","DOI":"10.3390\/medsci14030336","type":"journal-article","created":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T18:35:05Z","timestamp":1782239705000},"page":"336","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Obesity and Dental Caries: A State-of-the-Art Review of Shared Risk Factors, Biological Mechanisms and Current Evidence"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5450-6408","authenticated-orcid":false,"given":"In\u00eas","family":"Amaro","sequence":"first","affiliation":[{"name":"Institute of 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