Sharks for instance have razor sharp pointy teeth - indeed they do. Some sharks, like Great Whites, have serrated triangular teeth for sawing through tough hide and removing chunks of flesh. Others, like Makos, have thinner teeth that lack a serrated edge, for catching fish.
Lions teeth sharp and pointy - again, yes. The canines of big cats are roughly circular in cross-section. The canines of wolves are oval in cross-section. I read somewhere that some scientists have studied this and concluded that the circular canines of big cats allow them to resist the struggling of prey in all directions. Wolves take shallower bites at running prey, and their canines are oval, flattened side-to-side, so that their teeth resist the huge single-directional force of prey running. I wish I had the references to hand but sadly do not.
What all this means is that carnivores eat meat, and their teeth help them do this.
PS consider also the dentition of T-rex. Anyone think that that monster was herbivorous?
Edit: sorry, didn't realise this was your first post. Welcome, Carl.