Purpose: To investigate dentists' work conditions, awareness, protective measures, economic effects and perceived stress during the first two waves of the COVID-19 pandemic.

Materials and methods: This cross-sectional survey was conducted among 126 dentists working in the Frenchspeaking part of Switzerland, in particular in the Cantons of Vaud and Geneva. Data consisted of the answers to 40 questions assessing the knowledge, attitudes, workload and mental condition of the dentists during the first 2 waves of the COVID-19 pandemic.

Results: Swiss dentists received sufficient information about the COVID-19 pandemic and implemented protective measures. Differences were found between the 1st and the 2nd wave concerning the workload; during the first wave, the workload was low for the majority of dentists (60%), whereas during the second, it was moderate (53.4%) or high (41.3%). During both waves, the mental burden was also important, and was related mainly to financial issues and fear of infection.

Conclusions: This survey reported that Swiss dentists were, in general, satisfied with the transmission of precise operating guidelines during the pandemic. However, a considerable psychological impact, mainly during the first wave, was revealed. With the implementation of proper strategic measures during the COVID-19 outbreak, dental practitioners will be prepared for future global health-care disruptions.