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Dental amalgam has had a long history and global impact. It was first introduced in the Chinese materia medica of Su Kung in 659 A.D. during the Tang Dynasty. In Europe, Johannes Stockerus, a municipal physician in Ulm, Germany, recommended amalgam as a filling material as early as 1528.
<a href=http://dentures.denta.top/art/how-much-does-it-cost-for-dentures/>How much does it cost for dentures</a>


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