TY - JOUR
T1 - Comparative stress analysis of delayed and immediate loading of a single implant in an edentulous maxilla model
AU - Gao, Jie
AU - Matsushita, Yasuyuki
AU - Esaki, Daisuke
AU - Matsuzaki, Tatsuya
AU - Koyano, Kiyoshi
PY - 2014
Y1 - 2014
N2 - Stress distribution in peri-implant bone in an edentulous maxilla following delayed and immediate loading implant and the effect of implant length on the maximum stress were evaluated by using two kinds of finite element analyses. A threaded implant was loaded with a 100 N vertical force, either immediately or delayed, and examined by finite element analysis with a simple contact relation or a bonding interaction between the implant and the bone, respectively. Higher stresses were observed in cortical bone around the implant neck following delayed loading and in the trabecular bone around the implant threading in the immediate loading model. The maximum stress in the immediate loading model was dramatically higher than in delayed loading. Increased implant length caused decrease in bone stresses in both loading models. Though the stress level was higher, the decrease in the maximum trabecular bone stress in immediate loading was profound.
AB - Stress distribution in peri-implant bone in an edentulous maxilla following delayed and immediate loading implant and the effect of implant length on the maximum stress were evaluated by using two kinds of finite element analyses. A threaded implant was loaded with a 100 N vertical force, either immediately or delayed, and examined by finite element analysis with a simple contact relation or a bonding interaction between the implant and the bone, respectively. Higher stresses were observed in cortical bone around the implant neck following delayed loading and in the trabecular bone around the implant threading in the immediate loading model. The maximum stress in the immediate loading model was dramatically higher than in delayed loading. Increased implant length caused decrease in bone stresses in both loading models. Though the stress level was higher, the decrease in the maximum trabecular bone stress in immediate loading was profound.
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U2 - 10.1177/1758736014533982
DO - 10.1177/1758736014533982
M3 - Article
AN - SCOPUS:84902975586
VL - 5
SP - 1
EP - 7
JO - Journal of Dental Biomechanics
JF - Journal of Dental Biomechanics
SN - 1758-7360
IS - 1
ER -