“…The studies included in this systematic review applied graphene treatment to several materials such as yttria-stabilized tetragonal zirconia, [10] , [11] zirconia, [34] PEEK [26] , [35] , PMMA [36] , pure titanium [29] , [37] , [38] , [39] , [40] , [41] , [42] , [43] and titanium alloys [44] , [45] .…”