My employer does not offer it. I have good teeth and just need the basic coverage. Is this typically expensive? And where do I go about finding it?

Individual dental insurance is not widely available because it is a money looser for the insurance company. You might be able to purchase a "basics only" plan through your state (I know Washington State offers one), but you could be better off putting money aside in the bank instead of paying premiums.

Insurance companies make money by taking in more in premiums than they pay out in benefits. While this may work in a group of insured people, it does not work with an individual.

Avoid internet-based dental discount plans such as Ameriplan. Please follow the link to see why this is not such a good idea.