Seiten: 569-577, Sprache: EnglischRoss, Stanley E. / Schultz, Ingrid M. / Ross, Kenneth E.The advent of cylindric titanium implants and the prevalence of periodontal disease have necessitated a restoration that facilitates the performance of oral physiotherapy. The use of the conical crown as a metallic covering over natural teeth and implants-with a suprastructure that is retained through a specific degree of convergence without cement or screws-allows access for enhanced oral hygiene practices, while providing for esthetic and functional goals.