Table 4 Summary of actual vs potential impact by study and impact category.
From: Environmental impact of dental amalgam and alternative restorative materials: a systematic review
- CAD/CAM computer aided design and computed aided manufacturing, NR not reported, OSHA Occupational Safety and Health Administration, USA United States of America Key: Compliance with guidance:
=Yes; 
=No *Outcome depends on intervention used to reduce vapour emissions exposure. †Specific guidance not reported. ‡ To show a measure of environmental impact (i.e., actual rather than potential impact), studies were required to either: (a) report compliance with guidance on levels of toxicity in the environment associated with restorative materials, or (b) report effects of toxicity on living organisms or carbon footprint.
=Yes; 
=No *Outcome depends on intervention used to reduce vapour emissions exposure. †Specific guidance not reported. ‡ To show a measure of environmental impact (i.e., actual rather than potential impact), studies were required to either: (a) report compliance with guidance on levels of toxicity in the environment associated with restorative materials, or (b) report effects of toxicity on living organisms or carbon footprint.