Embedding undecalcified bone in polymethyl methacrylate: an improved method.

A number of improvements are described for the preparation of resin sections of undecalcified bone embedded in polymethyl methacrylate. Based on a modified resin mix, the modifications, which include a specially designed block clamp, have resulted in a simplified and quicker procedure with improved section quality. The method has been used routinely for investigating approximately 10,000 cases of metabolic bone disease for diagnostic purposes.