Related Experiment Video
Updated: Aug 21, 2026

Detection and Removal of Tooth-Colored Composite Resin Using the Fluorescence-Aided Identification Technique
Published on: July 27, 2022
Dental amalgam: regulating its use and disposal
1Public Policy Division, California Dental Association, Sacramento 95814, USA.
Abstract:
Although dental amalgam has been a restorative material for more than 150 years, government regulation of its use and disposal came much later with the creation of new federal laws and agencies. None of the federal laws regulating dental amalgam today were written specifically to regulate amalgam. Instead, these new laws and agencies were created to address broad public safety concerns, where little or no regulation existed before, in the areas of medical devices and drugs and environmental pollution. It is the interpretation and implementation of environmental laws that recently have had the greatest impact on dental practices.
Related Concept Videos
Masking and Demasking Agents
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
Deleterious Substances in Aggregate
Another type of impurity is clay and fine material that...

