What question did this study set out to answer?

To evaluate the environmental impacts of dental amalgam compared to alternative restorative materials.

January 24, 2026

Environmental impact of dental amalgam and alternative restorative materials: a systematic review.

SBSimon BriscoeUniversity of Exeter LSLiz ShawUniversity of Exeter HLHassanat LawalUniversity of Exeter

Key Points

To evaluate the environmental impacts of dental amalgam compared to alternative restorative materials.
Conducted a systematic review of existing studies on dental materials.
Analyzed the heterogeneity of study designs and outcome measures.
Assessed the environmental outcomes associated with both amalgam and non-amalgam materials.
Both amalgam and non-amalgam materials show environmental impacts.
Limited confidence in findings due to varied study methodologies.
Identified a need for more comprehensive research to guide policies.

Abstract

Whilst the evidence included in this review indicates that both amalgam and non-amalgam dental materials are associated with environmental impacts, confidence in these findings is limited due to the heterogeneity of study designs, outcome measures, and limited comparative data. Further research is needed to inform future policies which aim to reduce the environmental impact of restorative dental activities.

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