Is it Sufficient to Only Use Hand Sanitizer in the Dental Environment?

In the absence of debris or if hands are not visibly soiled hand sanitizers can be very good at killing bacteria when they have access to the bacteria. When debris is present they are not able to penetrate debris and do not work effectively.

Source:  Center for Disease Control and Prevention (CDC), Infection Prevention Checklist for Dental Setting: Basic Expectations for Safe Care, Page 6, https://www.cdc.gov/oralhealth/infectioncontrol/faq/hand.htm