You may have few, you may have many, yours may be razor sharp, or they may be flat. Teeth are an often important aspect of our existence as monsters, beasts, and creatures. As such, they deserve great care and attention.

How else can one chew through the world without a well looked-after set of teeth?
Brush at least twice a day, once in the morning (ready to gnaw through anything that troubles you) and once in the evening (as a thankyou for them being so menacing).

Be sure floss, too. As terrifying to prey as it may be to have the remains of your former successful hunts visible when you snarl, I find that cleanly picked teeth are just as threatening to either meats or greens, as well as a sign of good oral hygiene.

Look after your teeth, you need them to bite through the world.

A note on oral fixations and chewing habits:
Some of us have nervous or inbuilt fixations such as chewing. This can be mostly harmless and indeed if harnessed well can add to a frightening aura, but when biting and chewing becomes a destructive habit - done out of stress and inflicted on oneself for relief - consider ameliorating the negative impact by finding something other than yourself to chew. Chewlery, silicone cooking tools, and even soft canine chew toys work great for this. It won't deal with the cause of the destructive chewing, per se, but it will at least turn the destruction harmlessly outward.