Effect of cortical bone thickness and density on pullout strength of mini-implants: An experimental study.
American Journal of Orthodontics and Dentofacial Orthopedics（2020）
Abstract
•Mini-implants were placed in blocks simulating cortical bone.•Effects of bone thickness and density on pullout strength were assessed.•Both cortical layer density and thickness were positively correlated with pullout strength.•Density has a greater impact on pullout strength than thickness.•1-mm cortical thickness is the threshold value for pullout strength.
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Key words
Implant Stability,Mini-implants
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