Sharifi Roohollah, Almasi Davood, Sudin Izman Bin, Abdul Kadir Mohammed Rafiq, Jamshidy Ladan, Amiri Seyed Mojtaba, Mozaffari Hamid Reza, Sadeghi Maliheh, Roozbahani Fatemeh, Iqbal Nida
Department of Endodontics, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran.
School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Int J Biomater. 2018 Aug 1;2018:9607195. doi: 10.1155/2018/9607195. eCollection 2018.
The mechanical properties of coated layers are one of the important factors for the long-term success of orthopeadic and dental implants. In this study, the mechanical properties of the porous coated layer were examined via scratch and nanoindentation tests. The effect of compression load on the porous coated layer of sulphonated poly ether ether ketone/Hydroxyapatite was studied to determine whether it changes its mechanical properties. The water contact angle and surface roughness of the compressed coated layer were also measured. The results showed a significant increase in elastic modulus, with mean values ranging from 0.464 GPa to 1.199 GPa (p<0.05). The average scratch hardness also increased significantly from 69.9 MPa to 95.7 MPa after compression, but the surface roughness and wettability decreased significantly (p<0.05). Simple compression enhanced the mechanical properties of the sulphonated poly ether ether ketone/hydroxyapatite coated layer, and the desired mechanical properties for orthopaedic and dental implant application can be achieved.
涂层的机械性能是骨科和牙科植入物长期成功的重要因素之一。在本研究中，通过划痕和纳米压痕试验研究了多孔涂层的机械性能。研究了压缩载荷对磺化聚醚醚酮/羟基磷灰石多孔涂层的影响，以确定其机械性能是否发生变化。还测量了压缩涂层的水接触角和表面粗糙度。结果显示弹性模量显著增加，平均值在0.464 GPa至1.199 GPa之间（p<0.05）。压缩后平均划痕硬度也从69.9 MPa显著增加到95.7 MPa，但表面粗糙度和润湿性显著降低（p<0.05）。简单压缩增强了磺化聚醚醚酮/羟基磷灰石涂层的机械性能，并且可以实现骨科和牙科植入应用所需的机械性能。
