Are there dental Insurance plans that can be activated in less than 30 days?!

Are there dental Insurance plans that can be activated in less than 30 days?

I've run into a situation where I need ti buy insurance asap and get in. I'm not so keen on the discount plans but that seems to be all I can do.
I'd like to ask a dentist a few questions. I'm new to my state and do not yet have a dentist here. I've chipped a tooth and it has negotiated a crown. It's sensitive but not super painful. please help point me in a good direction.

Only Discount Dental Plans seem to available. My Physician has refer ed me to a Dentist, who was willing to the the work without a discount plan. That saved me the over hundred dollars for the yearly fee,(for the Discount Plan) and for that price I had my teeth cleaned every 6 mos. However I only get the cleaning done. If you have time enough ask your Doctor, or inquire around if you can find a Dentist that will do the work at a more reasonable price since you have no Dental Insurance, and perhaps they can arrange some kind of payment plan for you. The advise above about the Dental University Schools is also a good source to try.Keep your mouth tongue and teeth extremely clean especially before going for a Dental Exam. My very best wishes.