The use of a masticatory robot to analyze the shock absorption capacity of different restorative materials for prosthetic implants: a preliminary report.
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.
Conserva
Enrico
E
Department of Fixed and Implant Prosthodontics, Genoa University, Genova, Italy. studioconserva@libero.it
Menini
Maria
M
Tealdo
Tiziano
T
Bevilacqua
Marco
M
Ravera
Giambattista
G
Pera
Francisco
F
Pera
Paolo
P
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
D003188:Composite Resins; D015921:Dental Implants; D003776:Dental Porcelain