J‐shaped associations between thiocyanate and periodontitis: A cross‐sectional study from NHANES 2009–2014

Thiocyanate, a compound prevalent in both the environment and dietary sources, can impact health through mechanisms that are either protective or detrimental. This study sought to investigate the specific relationship between thiocyanate exposure and periodontitis utilizing data from the National Health and Nutrition Examination Survey (NHANES). The findings reveal that both insufficient and excessive levels of thiocyanate exposure are linked to an increased risk of periodontitis, underscoring the critical importance of maintaining an optimal range of thiocyanate exposure for periodontal health.