Clinical Application of Pure Titanium for Cast Plate Dentures

Pure titanium cast plate denture produced by Ohara's titanium casting system were inserted in eight patients. The pure titanium cast plate dentures enabled satisfactory fitness and had good adaptability to the mucosal surface. Furthermore, they are lighter in weight than conventional cast dentures. X-ray examination revealed some casting defects, but these defects were not serious enough to be conducive to damages. Follow-up observation of the patients with these dentures indicated no clinical problems. However, inadequate adhesiveness with resin was a technical problem encountered. Examination of the castability of pure titanium using this system showed that casting in the meshtype wax pattern failed to produce a complete form of mesh, while casting in the plate-type wax patterns produced a complete contour of the plates. X-ray examination of the plate cast, however, revealed some casting defects.