If you are uncomfortable with any of the infection control protocols of the dental office, it is your right and responsibility to ask for clarification or refuse to work there. Do not do anything that could put your license at risk.
You are responsible for your own actions at a dental office. It is your responsibility to familiarize yourself with and follow the infection control protocols of the office.
Information about the regulatory standards of Infection Control in dental offices can be found online for most Provinces and States. Please refer to your licensing board for specific questions or concerns about what is and is not acceptable.