These plus some hard/dry food helped us beat the averages -- multiple 15+ year old in-/out-side cats with all their teeth without other dental care. Those from Revival, unlike some other vendors, have been fresh and seem to have been properly warehoused; the pricing, including shipping, is competitive with local discount (!) sources, even advantageous with larger total orders.
As for Virbac dental chews, I alternately offer Poultry or Fish -- if one flavor is not accepted, the other usually is; another 'trick' is to dunk a chew in plain water then offer it. .Some cats prefer them to food; occasionally, CET chews entice a ailing cat to go head and eat 'real food'; ... . I am convinced that Virbac CETs, like mouth wash for humans, may not 'fix' dental problems but definitely minimize undesirable consequences.