Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Caries Experience in Both the Pre- and Post-Lockdown Periods During the COVID-19 Pandemic: An Observational Study

Version 1 : Received: 12 January 2024 / Approved: 12 January 2024 / Online: 12 January 2024 (16:17:52 CET)

A peer-reviewed article of this Preprint also exists.

Guerreiro, E.; Botelho, J.; Machado, V.; Proença, L.; Mendes, J.J.; Manso, A.C. Caries Experience before and after COVID-19 Restrictions: An Observational Study. J. Clin. Med. 2024, 13, 1164. Guerreiro, E.; Botelho, J.; Machado, V.; Proença, L.; Mendes, J.J.; Manso, A.C. Caries Experience before and after COVID-19 Restrictions: An Observational Study. J. Clin. Med. 2024, 13, 1164.

Abstract

In 2020, following the World Health Organization's declaration of COVID-19 as a pandemic, dental practices faced unprecedented disruptions globally. This retrospective cross-sectional study, conducted at a leading university dental hospital in the Lisbon Metropolitan Area, investigated the impact of these disruptions on dental caries. The study, spanning June 2019 to June 2021, included a full-mouth X-ray examination, along with sociodemographic, behavioral, and medical data. Our sample comprised 3,380 participants (2,007 females and 1,373 males), aged 18 to 99 years, divided into pre-lockdown and post-lockdown groups. We employed the Decayed, Missing, and Filled Teeth (DMFT) index to measure dental caries. Our findings revealed that nearly 90% of participants in both groups experienced dental caries, indicating a statistically significant difference between the pre-lockdown and post-lockdown periods. However, the impact of COVID-19 confinement varied among different demographic sectors, with age, educational background, and professional status emerging as the key determinants. This study highlights the need for a more nuanced understanding of the impact of the pandemic on oral health, emphasizing the role of sociodemographic factors in shaping dental health outcomes during such global health crises.

Keywords

dental caries; caries experience; COVID-19; prevalence; pandemic; epidemiology; decay missing filled index; dmf index

Subject

Public Health and Healthcare, Public Health and Health Services

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