Xiong Lang 1Su Hanqi 2Hao Junjiang 2Su Yucheng3
作者信息
- 1. Stomatology College of Jiamusi University,Experimental Center for Stomatological Engineering,Jiamusi University,Key Laboratory of Oral Biomedical Materials and Clinical Application,Heilongjiang Province,Jiamusi 154002,Heilongjiang,China||Jiamusi University,Jiamusi 154007,Heilongjiang,China
- 2. Beijing CRS Medical Device Co.,Ltd,Beijing 102600,China
- 3. Stomatology College of Jiamusi University,Experimental Center for Stomatological Engineering,Jiamusi University,Key Laboratory of Oral Biomedical Materials and Clinical Application,Heilongjiang Province,Jiamusi 154002,Heilongjiang,China||Beijing CRS Medical Device Co.,Ltd,Beijing 102600,China||Dental Implant Center,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences,Beijing 100032,China
- 折叠
摘要
Abstract
Objective This study investigates the effects of magnetic abrasive finishing(MAF)technology on the surface morphology,roughness,hydrophilicity,and corrosion resistance of Ti-6Al-4V alloy dental implant abutments.It aims to clarify the role of different magnetic needle diameters in optimizing surface properties and provide a basis for clinical surface treatment processes.Methods Ti-6Al-4V alloy cylindrical specimens were divided into five groups:an untreated control group(control)and MAF-treated groups with magnetic needle diameters of 0.2 mm,0.5 mm,1.0 mm,and 1.5 mm(MAF0.2,MAF0.5,MAF1.0,and MAF1.5).MAF treatment was performed by changing only the magnetic needle diameter while keeping the other processing parameters constant.Surface morphology changes were observed using a scanning electron microscope(SEM),surface roughness was measured using an optical surface roughness meter,hydrophilicity was assessed using a contact angle measuring instrument,and electrochemical polarization testing was used to analyze the corrosion potential(Ecorr),corrosion current density(icorr),and polarization resistance(Rp)of each group of samples in artificial saliva.Results MAF treatment effectively removed original processing marks,reduced surface roughness,and improved hydrophilicity,with statistically significant differences between groups(P<0.05).In the MAF1.0 group(magnetic needle diameter 1.0 mm,magnetic needle length 5.0 mm,magnetic pole rotation speed 40 Hz,grinding time 60 min),Ra decreased to(0.197±0.022)μm,contact angle decreased to 78.03°±1.59°,Ecorr increased to-0.5661 V,icorr decreased to 0.0114 μA·cm-2,and Rp increased to 8.97×106 Ω·cm2,all outperforming other treatment groups and the control group,demonstrating the best overall performance.Conclusion MAF technology can significantly improve the surface morphology,roughness,hydrophilicity,and corrosion resistance of Ti-6Al-4V alloy implant abutments.Magnetic needle treatment with a diameter of 1.0 mm is most effective in improving surface performance,providing an experimental basis for subsequent clinical evaluation.关键词
六铝四钒钛/种植体基台/磁力研磨/耐腐蚀性Key words
Ti-6Al-4V/Implant abutment/Magnetic abrasive finishing/Corrosion resistance
