Where can l find low cost Dental care in Orange County,CA?

I would like to find low cost dental care in O.C,but the one l find on the net is called Medical Discounts International,Inc, l don't believe it's a government program and l have my reservations. Is government programs better than private ones? Any agencies that are reliable and good? Thanks.
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about the gov't dental care...some of the best work and longst lasting was done by students at UC
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