Dental health insurance is the insurance that covers expenses related to treating dental problems and is available through various dental insurance companies such as Aetna, PrimeCare, California Dental, UnitedHealth Care, Delta Dental and others. Dental health insurance is available for individuals, small businesses, and families as well. Dental health insurance plans are one way of ensuring individuals and families get regular dental check ups. There are several different types of dental health insurance plans, but there are four kinds that are most commonly purchased. Finally, these types of plans are much different than discount dental plans because they are indemnity plans, capitation programs or schedule-of-allowance programs.