Tribological Behavior of Dental Porcelain Material Containing Antibacterial Agent

Dental porcelain materials without and with antibacterial agent were prepared. The mechanical properties of the two dental porcelain materials were investigated and compared. With addition of 2wt% antibacterial agent, the microhardness, bending strength and fracture toughness of the material can be improved. Friction and wear tests of the two materials sliding against three rehabit materials were conducted on an Optimol SRV friction and wear test under lubrication of artificial saliva. LZB-GC glaze exhibited better tribological performance than that of PFM without antibacterial agent. The wear mechanisms were highly dependent on the couterpart materials. With combination of good antibacterial nature, good mechanical strength and improved triboligical properties. LZB-GC glaze is a candidate material for dental application.