Oral Health Status Among Adults With and Without Prior Active Duty Service in the US Armed Forces, NHANES 2011-2014

Introduction: Many veterans qualify for health benefits but generally not dental care. This study examines differences in oral health status between veterans and nonveterans in the U.S. to determine how various factors, including socioeconomic, general health, and tobacco use, impact former service members' oral health. Materials and Methods: Data from 11,539 dentate adults participating in the National Health and Nutrition Examination Survey (2011-2014) were used. Outcome variables included decayed teeth (DT), missing teeth (MT), filled teeth (FT), caries experience (DMFT), and periodontitis (PD). Covariates included demographic and socioeconomic factors, deployment, smoking, depression, hypertension, hyperlipidemia, and diabetes. Logistic regression modelling was used to assess associations between these factors and oral health outcomes. Results: Veterans represent about 9% of the U.S. population. There was a higher prevalence of PD, MT, FT, and DMFT among veterans than nonveterans. Veterans were more likely to have PD (OR, 1.8; 95% CI, 1.3 to 2.5) and higher DMFT (OR, 2.9; 95% CI, 2.4 to 3.4); however, after controlling for other covariates, military service was only associated with FT (OR, 1.3; 95% CI, 1.1 to 1.6) and higher DMFT (OR, 1.6; 95% CI, 1.2 to 1.9). Conclusions: Because veterans are more likely to originate from groups at a higher risk for poor oral health (older adults, smokers, males, diabetics), the prevalence of adverse oral health conditions are higher among veterans compared to nonveterans. Overall, military service is not associated with PD or untreated dental caries but is associated with indicators suggesting veterans have had more dental treatment (FT and DMFT). There is substantial unmet oral health care need primarily related to periodontitis among veterans.