Compressive strength of Ti-6Al-A4 after immersion test with artificial saliva pH 8.0 and dynamic testing

Abstract

Dental implants are an alternative dental treatment that has been developed with one of the chosen materials, called Ti-6Al-4V. The pH environment in the oral cavity is expected not to affect the Ti-6Al-4V implant’s durability. The aim of this research was to analyze the change in compressive strength of the Ti-6Al-4V implant after dynamic and immersion tests with artificial saliva at pH 8.0. The method that we used in this research is laboratory experimental and analytic research was conducted with 27 Ti- 6Al-4V implant samples, which were classified into three groups as research subjects. Each group consists of 9 samples, including those with no treatment (UT), aquades solution (DW), and artificial saliva with a pH of 8.0 (AS). In the negative control group, the samples were treated dynamically in accordance with the ISO 14801 standard, while the samples in the positive control group were not treated. Samples from the treatment group were subjected to a dynamic test in accordance with ISO 14801 standards while being immersed in artificial saliva with a pH of 8.0. Thereafter, a compression test was conducted on the three sample groups. A one- way ANOVA test was used to analyze the comparison of treatment results. The result for this research is the immersed Ti-6Al-4V implant in artificial saliva and dynamic testing with a stress of 50 N, 2 million load cycles, and a frequency of 12 Hz do not significantly impact the compressive strength of each Ti-6Al- 4V sample. In Conclusion, the dynamic treatment along with the immersion test on artificial saliva at pH of 8.0 seemed to have no effect on the compressive strength of each sample.