Do you have to wait before you can use your new dental insurance?

If you get a new dental insurance policy, do they make you wait for a certain period of time before you can get dental surgery (wisdom tooth extraction)? Can you get the policy and then get the extraction done soon after?
--------------------
It depends on the policy of the health insurances, it could be up to 30+ days. Call the number at the back of the paper, if you want to know.
Source