Does dental caries play a role on the asthma development?—systematic review and meta-analysis

Asthma and dental caries are the two most common diseases in children, and the relationship between them has been a focus of research. Whether dental caries affects the development of asthma has long been controversial. The aim of this study was to conduct a systematic review of the literature to assess the effect of dental caries on the development of asthma and provide new ideas for the pathogenesis and promoting factors of asthma. For a systematic review and meta-analysis, we systematically searched three databases (PubMed, Web of Science, and Embase) for studies published from database inception to 22 May 2022. We included observational studies that investigated the effect of dental caries on the development of asthma. Studies were critically appraised and a meta-analysis was performed to estimate a pooled effect. From the 845 studies initially identified, 7 of these were included in the meta-analysis. Included studies originated from America (n = 5) and Asia (n = 2). A meta-analysis of data from seven selected studies suggested that dental caries was positively associated with the risk of asthma development (The odds ratio for the pooled effect was 1.06, 95% confidence interval: 1.01, 1.10). In addition, the effect of dental caries on asthma risk varied in different geographic locations according to subgroup analyses. This study suggests that dental caries may affect the development of asthma and emphasizes the importance of increased awareness of dental care and caries prevention in patients with asthma.

Dental caries; Asthma; Meta-Analysis

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