The Role of Vitamin D in Oral Health

Vitamin D is an essential nutrient that plays an important role in maintaining healthy bones and  teeth. One of its primary functions is helping the body regulate and absorb calcium and  phosphorus, minerals that are necessary for proper mineralization of teeth and supporting bone.  Beyond its role in mineral metabolism, vitamin D also contributes to immune regulation and  inflammatory responses. Because of these functions, researchers have increasingly investigated  the relationship between vitamin D levels and oral conditions such as dental caries and  periodontal disease (Liang et al., 2023; Mahmood et al., 2023). 

Vitamin D may play an important role in periodontal health. Periodontitis is an inflammatory  disease that damages the tissues and bone supporting the teeth. A recent systematic review and  meta-analysis found that individuals with periodontitis had lower circulating vitamin D levels  compared with periodontally healthy individuals (Liang et al., 2023). Vitamin D has also been  studied for its role in regulating inflammation and immune responses, which may help explain its  association with periodontal health. However, further research is needed to determine whether  vitamin D supplementation can directly improve periodontal treatment outcomes.

Researchers have also investigated the relationship between vitamin D and dental caries. Vitamin  D contributes to the mineralization of teeth through its role in calcium and phosphate regulation,  while inadequate vitamin D levels may affect the development and maintenance of dental tissues.  

A 2023 systematic review and meta-analysis found an association between lower vitamin D  levels and a greater prevalence of dental caries (Mahmood et al., 2023). Although these findings  suggest a potential protective role, dental caries is influenced by many factors, including diet,  oral hygiene, fluoride exposure, saliva, and the oral microbiome. 

Vitamin D represents one of many nutritional factors that may contribute to maintaining oral  health. Current research suggests associations between vitamin D status, periodontal health, and  dental caries, but maintaining adequate vitamin D should not replace established preventive  practices. Regular brushing with fluoride toothpaste, interdental cleaning, a balanced diet, and  routine dental care remain essential for preventing oral disease. As research continues, a better  understanding of vitamin D’s role in oral health may contribute to more comprehensive  approaches to prevention and patient care (Botelho et al., 2020). 

References: 

Liang, F., Zhou, Y., Zhang, Z., Zhang, Z., & Shen, J. (2023). Association of vitamin D in  individuals with periodontitis: An updated systematic review and meta-analysis. BMC Oral  Health, 23(1), 387. https://doi.org/10.1186/s12903-023-03120-w 

Mahmood, M. K., Tassery, H., Tardivo, D., & Lan, R. (2023). Association between Vitamin D  Levels and Dental Caries: A Systematic Review and Dose-Response Meta-Analysis of Cross Sectional Studies. Applied Sciences, 13(17), 9883. https://doi.org/10.3390/app13179883

Botelho, J., Machado, V., Proença, L., Delgado, A. S., & Mendes, J. J. (2020). Vitamin D  Deficiency and Oral Health: A Comprehensive Review. Nutrients, 12(5), 1471.  https://doi.org/10.3390/nu12051471