PubMed-ID: 19260428Seiten: 53-55, Sprache: EnglischConserva, Enrico / Menini, Maria / Tealdo, Tiziano / Bevilacqua, Marco / Ravera, Giambattista / Pera, Francisco / Pera, PaoloPurpose: This study was conducted to measure, in vitro, the chewing load forces transmitted through crowns made of different prosthetic restorative materials onto dental implants.
Materials and Methods: A masticatory robot capable of reproducing the mandibular movements and the forces exerted during chewing was used. The forces transmitted to the simulated peri-implant bone during the robot mastication were analyzed using four different occlusal materials: three resin composites and one glass ceramic crown.
Results: The ceramic crowns transmitted significantly greater forces (up to +63.06%, P .0001) than the composite crowns tested.
Conclusion: Composite crowns are better able to absorb shock from occlusal forces than crowns made of ceramic material.