[Historical review of esthetic material attachment to metal support of crowns and bridges].

Despite advantages and technological advances in the techniques of dental casts and ceramics attachment to metal, plastic materials for crown and bridge facetting are still of utmost importance for prosthetic procedures. In contrast to a hundred-year period of investigations of the ceramics-metal junction, the plastics-metal junction has been studied for not more than about 50 years. As the importance of this junction is being ever increasingly recognized, it may be expected to be optimized in the near future.