Interdisciplinary Study Examines Stress and Dental Cavities

Prevalence of Dental Cavities

Tooth decay and cavities are significant global health concerns. They often lead to frequent visits to the dentist, resulting in higher costs and a diminished quality of life. Dental caries adversely affect dietary habits, social interactions, work productivity, and overall health. Given their widespread occurrence and considerable impact, effective preventive treatment and a comprehensive understanding of dental caries are essential.

Research Focus and Educational Efforts

Ongoing research is being conducted on the biological aspects of dental care, complemented by educational initiatives aimed at promoting proper oral hygiene. Recent studies have hinted at a possible connection between psychological factors, such as stress, and the onset of cavities. A notable Canadian study published in Biomed Central: Oral Health explores this potential link.

Study Methodology

The data for this scoping review was gathered from various electronic databases, including MEDLINE, Embase, and PsychINFO. Both experimental and observational studies involving human participants were considered for inclusion. The researchers identified 232 studies, from which six were selected based on a quality assessment tool that evaluated sample size, study design, outlier cases, and data collection methods. This review specifically focused on children aged four to 14 years. While each study employed distinct methodologies, all utilized salivary cortisol as a stress indicator.

Findings on Salivary Cortisol and Cavities

The results indicated a correlation between salivary cortisol levels and the development of dental cavities in four of the six selected studies. The other two studies did not find any positive relationship between these variables. Observational studies indicated that children with dental caries exhibited higher salivary cortisol levels than those without the condition. Several studies also noted changes in saliva composition related to stress exposure.

Conclusion and Future Research Directions

The review concluded that while there is some evidence linking psychological stress with salivary changes and dental caries, the overall evidence remains inconclusive. It suggests that further research is necessary to substantiate these findings. The complex nature of cavity development complicates research focused solely on one factor, such as psychological stress.

Advancing experimental methods and conducting extensive research on the biological processes linking stress and the development of dental caries could yield more reliable data. Establishing an interdisciplinary approach may enhance preventative strategies for dental care among younger populations.

Author and Reference

Written by Shrishti Ahuja, HBSc
Reference: Tikhonova, S., Booij, L., D’Souza, V., Crosara, K. T., Siqueira, W. L., & Emami, E. (2018). Investigating the association between stress, saliva, and dental caries: A scoping review. BMC Oral Health, 18(1). doi:10.1186/s12903-018-0500-z