Dental Clinics

Dental clinics generate hazardous waste, but most are very small quantity generators (VSQG). Under Minnesota's hazardous waste rules, VSQGs produce 220 pounds-about 22 gallons-or less per month of hazardous waste. Most of the few hazardous wastes produced by dental clinics are recyclable.

Q What is the best way to store waste amalgam?
A Waste amalgam can be stored dry in a covered container labeled "Mercury" or "Amalgam for Recycling." There has been the perception that waste amalgam may give off mercury vapor and therefore the suggested that waste amalgam be stored under photofixer or water. However, studies performed by the US Air Force suggest that there is no difference in mercury vapors between amalgam stored dry or wet. Additionally, amalgam stored under fixer or water may leach mercury into the liquid creating another hazardous waste stream to be managed. This liquid must never be poured down the drain.

Dental Office Hazardous Waste Dental clinics produce few hazardous wastes, and most of these are recyclable. This fact sheet outlines hazardous wastes generated by dental clinics and discusses reduction, management and disposal options.