Variations of Young's Modulus Across Implant-Bone Interfaces
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概要
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Microsproperties of healing bone around a dental implant were studied using the nanoindentation method (TriboScope III, Hysitron Inc, Minneapolis, MN). The bone was prepared by implanting the commercialized dental titanium threaded implant in the Sinclair mini-pig mandible for the 1-month healing period without applying masticatory loads. The harvested implant-bone block was sectioned and the sample surfaces were polished to a final grade of 0.5μm. Nanoindentation with trapezoid loading on specimens were performed to measure the Young's modulus of the healing bone. A significant gradient (slope=0.01,P<0.05) was found perpendicular to the interface for distances out to 1500μm. This general trend of inclination did not differ significantly by anatomic location (e.g., cortical versus trabecular; P=0.107); however, in trabecular bone areas, the change tended to occur more rapidly (<150μm). It is possible that the healing morphology around a dental implant differs between cortical and trabecular bone at one month after implantation.
- 一般社団法人日本機械学会の論文
著者
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Ko Ching
Mbdel Department Of Oral Science University Of Minnesota
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Chang Myung
School of Mat. Sci. & Chem. Eng, Kunsan National University
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DeLong Ralph
MBDEL, Department of Oral Science, University of Minnesota
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Douglas William
MBDEL, Department of Oral Science, University of Minnesota
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Chang Myung
School Of Mat. Sci. & Chem. Eng Kunsan National University:mbdel Department Of Oral Science Univ
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Delong Ralph
Mbdel Department Of Oral Science University Of Minnesota
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Douglas William
Mbdel Department Of Oral Science University Of Minnesota