title: The use of a masticatory robot to analyze the shock absorption capacity of different restorative materials for prosthetic implants: a preliminary report.
abstract: OBJECTIVE
  This study was conducted to measure, in vitro, the chewing load forces transmitted through crowns made of different prosthetic restorative materials onto dental implants.
  
  
  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.
  
  
  CONCLUSIONS
  Composite crowns are better able to absorb shock from occlusal forces than crowns made of ceramic material.
authors.affiliation: Department of Fixed and Implant Prosthodontics, Genoa University, Genova, Italy. studioconserva@libero.it
authors.forename: Enrico
authors.initials: E
authors.lastname: Conserva
authors.forename: Maria
authors.initials: M
authors.lastname: Menini
authors.forename: Tiziano
authors.initials: T
authors.lastname: Tealdo
authors.forename: Marco
authors.initials: M
authors.lastname: Bevilacqua
authors.forename: Giambattista
authors.initials: G
authors.lastname: Ravera
authors.forename: Francisco
authors.initials: F
authors.lastname: Pera
authors.forename: Paolo
authors.initials: P
authors.lastname: Pera
mesh_terms: D001732:Bite Force; D003188:Composite Resins; D003442:Crowns; D015921:Dental Implants; D003776:Dental Porcelain; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis; D055119:Elastic Modulus; D008409:Mastication; D008422:Materials Testing; D012371:Robotics; D013314:Stress, Mechanical
chemical_list: D003188:Composite Resins; D015921:Dental Implants; D003776:Dental Porcelain