am i still covered under my parent health insurance?

I'll be 19 this month and I'm not going to college but I was wondering under the new obama health plan would I still be covered under my parent they did claim me as dependent on there taxes. I was wondering bc I went to my dentist and found out I wasn't under the dental plan anymore sense I had turned 18 even though I was still in school I wasn't elgiable for it anymore
--------------------
That portion of the bill goes into effect when the policy renews after 9/23/10. If you don't know when the policy renews it is generally right after open enrollment. At that time you can get back on if you desire. Until then apparently you are not covered.
Source