TY - GEN
T1 - Effect of Prosthesis Stiffness and Implant Length on the Stress State in Mandibular Bone with Dental Implants
AU - Todo, M.
AU - Irie, K.
AU - Matsushita, Y.
AU - Koyano, K.
PY - 2009
Y1 - 2009
N2 - The purpose of this study was to develop a detailed 3- Dimension mandibular model with dental implants on the basis of CT data and to conduct stress analysis to characterize the effects of the material type of prosthesis on stress/strain distribution in the mandibular bone. Three types of materials, a polymer and two metals, with different elastic properties were chosen as the prosthesis materials. The analytical results showed that the Mises equivalent stress and equivalent elastic strain along the circumference of the implant at distal side were much higher than in the anterior region. It was also shown that the stress/strain concentration at the bone increased with decreasing the prosthesis stiffness. The stress/strain concentration observed in the circumference of the implants could be the driving force for loosening and fracture of the implants.
AB - The purpose of this study was to develop a detailed 3- Dimension mandibular model with dental implants on the basis of CT data and to conduct stress analysis to characterize the effects of the material type of prosthesis on stress/strain distribution in the mandibular bone. Three types of materials, a polymer and two metals, with different elastic properties were chosen as the prosthesis materials. The analytical results showed that the Mises equivalent stress and equivalent elastic strain along the circumference of the implant at distal side were much higher than in the anterior region. It was also shown that the stress/strain concentration at the bone increased with decreasing the prosthesis stiffness. The stress/strain concentration observed in the circumference of the implants could be the driving force for loosening and fracture of the implants.
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U2 - 10.1007/978-3-540-92841-6_400
DO - 10.1007/978-3-540-92841-6_400
M3 - Conference contribution
AN - SCOPUS:84891955475
SN - 9783540928409
T3 - IFMBE Proceedings
SP - 1611
EP - 1614
BT - 13th International Conference on Biomedical Engineering - ICBME 2008
T2 - 13th International Conference on Biomedical Engineering, ICBME 2008
Y2 - 3 December 2008 through 6 December 2008
ER -