[Amalgam and alternatives-discussions on mercury reduction in the environment].

Frankenberger, Roland; Winter, Julia; Schmalz, Gottfried (2021). [Amalgam and alternatives-discussions on mercury reduction in the environment]. Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz, 64(7), pp. 847-855. Springer 10.1007/s00103-021-03355-4

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Dental amalgam has been successfully used for the restoration of carious lesions for more than 180 years. It is clinically characterized by high longevity and low technique sensitivity. For decades, dental amalgam has been discussed in the public, especially due to its roughly 50% mercury content. Since the Minamata Convention was published in 2013 with the primary goal of reducing the anthropogenic mercury release into the environment, the previously muted amalgam discussion has received fresh impetus. Another considerable disadvantage of amalgam is its silver/greyish color, which simply no longer matches patients' esthetic demands.The present paper describes the basic problems with amalgam against the background of multiple biological, clinical, and health policy factors. Possible consequences of the Minamata Convention concerning legal regulations as well as the use of dental biomaterials and therefore also relating to the future national healthcare system are discussed. Finally, possible amalgam alternatives and the urgent need for biomedical research towards restorative dentistry are presented, embedded into the crucial question of whether we are actually conducting the correct debate.

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