Stress in bone adjacent to dental implants.
Finite element analysis (FEA) was employed to assess patterns of stress in bone adjacent to an implant after application of loads through an attached distal extension cantilever. Under all loading conditions, the highest stresses occurred at the distal cervical bone margin adjacent to the cantilever. In clinical studies, this is not consistently the site of the greatest bone changes seen radiographically. This suggests that extrapolation of FEA studies to clinical implantology should be approached with caution until further data become available on both mechanical properties of bone and patterns of bone remodelling induced by defined functional stresses in mandible and maxillae.
Murphy
W M
WM
Department of Prosthetic Dentistry, University of Wales College of Medicine, Dental School, Cardiff, U.K.
Williams
K R
KR
Gregory
M C
MC
D016723:Bone Remodeling; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003799:Dental Stress Analysis / Q000379:methods*; D003830:Denture, Partial, Fixed; D004548:Elasticity; D006801:Humans; D008334:Mandible / Q000502:physiology*; D008954:Models, Biological; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted; D013314:Stress, Mechanical; D016474:Weight-Bearing
D015921:Dental Implants