When buying a HMO insurance plan or a Dental discount plan make sure to evaluate the network of dentists before buying. Not all dental insurance/discount plans have extensive networks of dental care providers. Before you sign up for a plan, make sure there are qualified dentists in your area. You should have several to choose from in case you decide that you do not like a particular dentist. Most plans will allow you to browse their provider directory prior to purchasing the insurance. If an insurer will not allow you to do that, take that is a red flag and find another insurer.