材料科学
骨重建
牙种植体
牙科
复合材料
生物医学工程
植入
医学
内科学
外科
作者
Mohadese Rajaeirad,Ashkan Fakharifar,Mohammad Hossein Zadeh Posti,Mohammad Khorsandi,D.C. Watts,Alaaeldin Elraggal,Abdelhak Ouldyerou,Ali Merdji,Sandipan Roy
标识
DOI:10.1016/j.dental.2024.04.002
摘要
This study evaluates the potential for osseointegration and remodeling of customized dental implants made from Titanium-Hydroxyapatite Functionally Graded Material (Ti-HAP FGM) with optimized geometry, using the finite element method (FEM). The study utilized CT scan images to model and assemble various geometrical designs of dental implants in a mandibular slice. The mechanical properties of Ti-HAP FGMs were computed by varying volume fractions (VF) of hydroxyapatite (0–20%), and a bone remodeling algorithm was used to evaluate the biomechanical characteristics of the ultimate bone configuration in the peri-implant tissue. The findings of the FEA reveal that osseointegration improves with changes in the density and mechanical properties of the bone surrounding Ti-HAP implants, which are influenced by the varying VF of hydroxyapatite in the FGM. Increasing the hydroxyapatite fraction improves osseointegration, and appropriate length and diameter selection of Ti-HAP dental implants contribute to their stability and longevity.
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