Increased dental comorbidities in patients with psoriasis: a nationwide population-based cohort study in Korea.

BACKGROUND

Limited data are available regarding the association between psoriasis and common dental conditions.

OBJECTIVES

To investigate the risk of potential dental comorbidities in patients with psoriasis.

METHODS

We conducted a nationwide population-based cohort study to analyse the claims data of patients with psoriasis (n = 15 165) and age- and sex-matched controls (n = 75 825). The incidence risk of the following potential dental conditions was analysed: dental caries, pulp and periapical disease, periodontal disease, gingival changes and tooth loss.

RESULTS

After adjusting for potential cofactors, the adjusted hazard ratios (aHRs) of dental caries [1.105; 95% confidence interval (CI) 1.078-1.132], pulp and periapical disease (1.07; 95% CI 1.044-1.096) and periodontal disease (1.108; 95% CI 1.088-1.129) were significantly higher than those in the control cohort (P < 0.001). However, among the subset of patients with psoriasis who received systemic antipsoriatic treatment (n = 4275), the aHR risk of all potential dental comorbidities was not significantly higher from that of the control cohort.

CONCLUSIONS

Patients with psoriasis have an increased risk of dental comorbidities, and systemic antipsoriatic treatment may help mitigate this increased risk.