Science Diet Oral Care

Does Science Diet Oral care work? Would it work if only fed as a treat? (my cats do not eat dry, just as a treat)

I haven't fed it, but I would wager it's not as effective as they try and market it. If your cats like it and you want to feed it as a treat, you can, but I would say it's junky (anything I see corn in, I discredit immediately but that's my personal preference against it) and overpriced. If you can get into your cats' mouths to give them a brushing, I think that would be a better route than relying on a dry food to make any impact on their dental health. The way we see cats eat doesn't really allow kibble to "rub" against teeth like SD would love for us to believe. Regardless of the shape the kibble is in, it usually shatters and they swallow it so no matter what dry food they're eating, there isn't really an opportunity for food to "clean" teeth.