 This systematic literature review examined the tribological performance of four different coatings, diamond like carbon, dlc, titanium nitride, tin, graphite like carbon, glc, and tantalum, tar. The study found that tar had the lowest wear rate among the coatings tested, followed by dlc, glc, and tin. Additionally, tar had the highest hardness and the lowest elasticity, while dlc had the highest hardness and the lowest elasticity. These results suggest that tar may be the most suitable coating for use in joint implant applications. Further testing is required to determine whether or not these findings can be applied to real-world situations. This article was authored by H.A. Ching, Diponka Choudhury, M.D. Joe Canine, and others.