When choosing a Dental plan/Dental Discount Plan, it is important to make sure there are providers in the plan you are willing to go to. Under a dental discount plan even though you are not assigned to a dental provider you must go to dentist that are a provider of the plan.   

I suggest making sure there is more the one or two providers available so you can change to go to a different dental office is you should choose to. Also call the dentist and confirm they are still accepting the plan before buying it.  One of the biggest mistakes made with discount plans is buying the plan without make sure there are dental offices locally in your area.