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CASTINGS DO THAT? KEEPING SMILES BRIGHT


The dental filling has had an undeni- ably profound impact on modern den- tistry, and mouths around the world. Barnabas F. Philbrook introduced a pressure casting method for producing gold fillings for cavities in 1896 that fea- tured a wax pattern, sprue pin and metal ring inserted directly into the patient’s mouth. The pattern was removed, the wax was melted and the inlay was cast with air pressure. The industry didn’t take notice until a decade later, when William H. Taggart invented a centrifugal casting process in 1907, though he eventually lost a patent due to Philbrook’s previous work. Still, the process developed by these two dentists, with minor alterations, is still used to fill cavities today and keep people around the globe smiling.


MELTING POINT 17


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