Some experts feel that it is better to remove the amalgam first and then apply the dam if needed for restorative procedures. After the fillings have been removed, take off the rubber dam if one was used and lavage the patients mouth for at least 30 seconds with cold water and vacuum. Remove your gloves and replace them with a new pair. If a restorative procedure is next then reapply a new dam and proceed. Elemental mercury vapor is one of the most toxic forms of mercury and should not breathed.
Any mercury exposure requires that the employee wear an approved mercury filter mask.
The manner in which dentists operate their equipment dramatically affects the amount of mercury released. Never drill on mercury high dry. It is hazardous to you, your staff, and your patient. Any office where mercury is used should be tested regularly and staff should be monitored for exposure. Testing services are available and a mercury sensor badge is available for personnel monitoring.