Design and Manufacture of Computer-controlled Wear Device for Biomedical Material: A Different Ambient pH Experimental Application

Abstract

Abstract Background: The wear resistance of biomaterials determined in experimental studies will have a major impact on material selection in clinical applications. Because the experimental determination of optimum material behavior will provide a more comfortable treatment process in clinical terms. Methods: In this study, a computer-controlled device with rotating parts that can determine the abrasion resistance of biomaterials placed in the human mouth has been design and manufacture in the experimental study. The periodic wear behavior of biomaterials placed in the human mouth was determined by the experiments carried out on this device. Test specimen was stored in the distill water for 7 days before the wear test procedures. Then, the composite test specimen was subjected to 15N wear force, 10.000 rotating wear cycle, 37°C ambient temperature, 2 Hz wear frequency immersed drinking water (about pH = 7.7), and citric acid solution (about pH = 3.2). Al2O3 balls were used as antagonist materials in every wear test procedure (d = 6 mm). Composite test specimen’s microhardness values were determined with Vickers hardness method before wear test procedures. Results: With the data obtained in this study, it was observed that the composite biomaterial had more wear volume scar loss in the acidic environment. Conclusion: In addition, it was observed in the microstructure analyses that the designed device affected the wear area, thus it was proved that the device remained in the optimum region throughout the wear test procedures.