INTRODUCTION: Understanding how different countries have responded to mitigate the risk of severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) transmission in dental offices is important . This article describes the different approaches taken towards optimal fallow periods in Canadian jurisdictions .
METHODS: We searched publicly available information from dentist and dental hygiene regulator websites across the 10 provinces and 3 territories in Canada . We also searched for guidance documents on dental associations' websites or through personal communication with government officials . We extracted and tabulated information on fallow period recommendations or guidance, when available .
RESULTS: Nine jurisdictions (6 provinces and all 3 territories) acknowledge or provide guidance on fallow periods following aerosol-generating procedures . Among those who have provided guidance regarding a fallow period, recommendations follow the Centers for Disease Control and Prevention guidance if the air changes per hour (ACH) in the dental operatory is known .
CONCLUSION: The evidence for deciding on optimal fallow period is limited and still being explored, resulting in substantial variation across Canadian jurisdictions . A focus on developing scientific evidence relevant to dentistry and assimilating existing science is crucial to establishing consistency and uniformity in information to deliver safe oral health care services.