Mom told me I can get a dental plan for $20/month. Seriously? Where can I find a $20/month dental insurance?

I don't think she knows what she's talking about. I thought the lowest was like $200/month. I'm from Kansas, so states may have something to do with what dental insurance is available. So, how would I be eligible for the cheapest dental insurance?
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healthplans.my-age.net - my family have this health insurance. It is affordable and has good coverage for dental issues.
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