The purpose of this paper was to summarize the presentations on porcelain materials, endodontic materials, casting metals, impression materials, armamentarium, amalgam, resins, composites, cements, bonding agents, adhesives, and calcium phosphate materials. Eight series of recommendations for future research are presented and include areas of basic research, animal models, biocompatibility, correlated laboratory and clinical testing procedures, epidemiological studies, workshops and conferences, materials research criteria, and a Dental Research Information Center. These recommendations were subsequently presented to the Programs Advisory Committee for Extramural Research of the National Institute of Dental Research.