Dental care cost can be high even just preventive dental services without dental insurance can cost over $150. Where as most dental insurance plans provide preventive dental care for free. Keep in mind you have an obligation to pay as agreed to the dentist any dental service provided. If you can not afford dental treatment do not agree to have any dental care until you are able. Dental insurance helps in making dental care more affordable so you do not have to put of needed dental care services.