You pay a monthly/yearly premium to a dental insurance company to be covered under a dental plan or denta insurance policy. The insurer pays some or all of your dental care costs in return. You may also need to pay other charges such as deductibles, co-pays, or co-insurance as part of the plan. DPPOs, DHMOs, DEPOs, DPOS, and Dental Indemnity Plans are some of the most common dental plans.