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. 2025 Jul 14:6:1590604.
doi: 10.3389/froh.2025.1590604. eCollection 2025.

Self-perceived general health and its impact on oral health in the U.S. adult population: NHANES 2015-2018

Fahad AlAli  1 , Abdulrahman Al-Safi  2 , Al-Jawharah Al-Ajmi  3 , Fatemah Alshammari  3 , Sarah Saqer  4 , Woroud Al-Sulimmani  5 , Ahmed Balkhoyor  6 , Hend Alqaderi  7   8 , Hesham Alhazmi  6
Affiliations

Self-perceived general health and its impact on oral health in the U.S. adult population: NHANES 2015-2018

Fahad AlAli et al. Front Oral Health. .

Abstract

Introduction: Oral health is crucial to overall well-being and is often described as a "window to general health" due to the strong bidirectional relationship between the two. This paper aims to assess the relationship between self-perceived general health and oral health among U.S. adults.

Methods: This study analyzed data from the 2015-2018 NHANES, comprising 11,566 U.S. adults. Statistical analyses included weighted percentages, chi-square tests, and logistic regression to evaluate the relationships between self-perceived general health status and oral health predictors.

Results: Each unit increase in DMFT (decayed, missing due to caries, and filled teeth) resulted in a 2% increase in the odds of reporting fair to poor health compared with excellent to good health (p < 0.01). Additionally, for each additional decayed permanent tooth and each missing tooth, the odds of reporting fair to poor health compared with excellent to good health increased by approximately 38% (p = 0.004) and 43% (p = 0.010), respectively.

Conclusion: This study suggests that higher DMFT scores, untreated dental decay, and missing teeth are associated with poorer self-perceived general health among U.S. adults. We recommend incorporating oral health assessments into general health check-ups, raising public awareness about their connection, and improving collaboration between medical and dental professionals to enhance patient care and preventive measures.

Keywords: DMFT; dental decay; general health; oral health; overall wellbeing.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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