How can GOLDTECH BIO 2000 be compatible with all porcelains?
A. GOLDTECH BIO 2000 changes some rules regarding how we evaluate porcelain to metal compatibility. Because the alloy is almost pure gold it can transmit heat very fast. Stress develops in porcelain when it begins to set during the firing cooling cycle at about 600°C. At this stage, GOLDTECH BIO 2000 will lose heat over a thousand times faster than the porcelain. The actual temperature of the alloy will be always much lower than the porcelain temperature. For GOLDTECH BIO 2000 , comparing the thermal expansion numbers at equal temperatures is not valid. As long as the alloy is able to release heat fast, it will meet the criteria for compatibility with any porcelain. The rapid heat transfer is the reason for using hollow pontics when fabricating bridgework: the design can release heat fast. Solid pontics cannot release heat fast enough and may crack the porcelain.
