The COVID-19 pandemic affected practice in endodontic offices. Same-day endodontic emergencies are cases with moderate or severe self-reported pain who request an unscheduled visit on the day they contact the office. The aims of this observational study were to: (A) analyse the rate of same-day endodontic emergencies in two endodontists' private offices, with respect to their demographic, aetiologic, diagnostic and procedural data; and (B) investigate the changes in characteristics of same-day emergencies between March 16 and May 31 annually over five years: 2019–2023.
Records of 5795 patients were reviewed and 892 same-day emergencies were identified. Overall and year-to-year comparisons of proportions of same-day emergencies, as well as demographic, aetiologic, diagnostic and procedural data were performed using chi-square test of independence followed by adjustments for multiple testing using the Benjamini-Hochberg method.
The rate of same-day endodontic emergencies significantly increased during the initial outbreak of COVID-19 in 2020 and remained high in 2021 (p < .05; Q < .05). The rate of same-day emergencies in 2022 subsided to levels comparable to 2019 (p > .05). Year-to-year comparisons of aetiologic factors (caries, restorative, persistent infection and cracks) showed a significant increase only in the rate of cracks in 2020, 2021and 2022 compared with 2019 (p < .05), but this increase did not reach the significance level after adjusting for multiple comparisons throughout the 5 years (Q > .05).
The COVID-19 pandemic was associated with a significant increase in the rate of same-day endodontic emergencies for 2 years. The spike in endodontic emergencies associated with the COVID-19 pandemic lasted well beyond the initial period of the outbreak. Further national and international studies are recommended to better understand the long-term impacts of pandemics of respiratory diseases on the public's oral health.


