Abstract
We have had several yers of clinical experience with casting dental titanium. Although we have learned various things about titanium casting during this time, we still encounter problems with this material and cannot say that we have fully mastered the technique. Although failures certainly arise with conventional dental castings and with industrial castings, is seems that rate of failures with dental titanium is even greater.
Although various reasons are given for casting failures and numerous countermeasures have been proposed, it should be pointed out that it is difficult to obtain a predictable outcome and that the countermeasures often do not hit the mark. Among these issues, we have centered our attention on the character of the molten liquid.