Purpose: The aim of this retrospective case study was to evaluate the impact of the COVID-19 confinement on consultation number and nature of dental emergencies.

Materials and methods: The investigators implemented a retrospective case-control study and enrolled a sample of patients who presented to the University Hospital of Geneva for dental emergencies during the COVID-19 confinement from March 16 to April 26, 2020. They were compared to a matched case-control group treated in 2018 and 2019. The predictor variable was the COVID-19 confinement. The outcome variables were consultation number and nature of dental emergencies. Other study variables included age, gender, socio-economic status, delay from symptoms to consultation and type of treatment. Descriptive and bivariate statistics were computed and significance level was set at ≤ 0.05.

Results: The study sample was composed of 1104 patients, with 386 in the case-study and 718 in the control group. No significant change in patient numbers was observed. In the case-study group patients were significantly younger (P= 0.004), had a significantly higher proportion of acute toothache and dental infections (P= 0.01), the main reason for consultation was pain or swelling (P= 0.01) and the delay from first symptoms to consultation was shorter compared to the controls (P=0.008).

Conclusion: The COVID-19 confinement had no impact on the consultation number of dental emergencies. However, changes in emergency type were noted, with an increase in acute toothaches and infections and patients waited less time between the onset of symptoms to consultation.