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The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

January/February 2009
Volume 22 , Issue 1

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The Use of a Masticatory Robot to Analyze the Shock Absorption Capacity of Different Restorative Materials for Prosthetic Implants: A Preliminary Report

Enrico Conserva, DDS, PhD/Maria Menini, DDS/Tiziano Tealdo, DDS, PhD/Marco Bevilacqua, DDS/Giambattista Ravera, PhD/Francesco Pera, DDS/Paolo Pera, MD, DDS, PhD

Pages: 5355
PMID: 19260428

Purpose: 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. Int J Prosthodont 2009;22:5355.

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