Yes, unless worn down or broken.
They are carnivores and as such need sharp teeth coupled with a powerful jaw to take down prey and tear it up for eating purposes.
Razor sharp. Very sharp. Can bite through flesh.
The sharp teeth that a tiger has allows it to rip apart the flesh of it's prey. Flat teeth are better suited to eating plants.
Fangs are for holding onto what they bite. They also can tear and kill prey