DDS2B,
Tx OMS has given you some good advice. In my experience, the older you get the more chance you have of both the primary and permanent canine being ankylosed. Also, sometimes I have just extracted the primary canines and this triggered the permanent canines to erupt withou surgery. However, this is the exception. One technique that is used quite often is to cut a "window" in the palate to expose the canine and remove the bone all the way to the CEJ. Removing bone the the CEJ is important because it helps to trigger the tooth to erupt natually. This will happen is probably 90% of all cases. However, what if you fall in the 10% that the tooth does not spontaneously erupts. So, I like to also place a button and chain onto the tooth. This can be difficult sometimes because in order to bond the bracket to the tooth you need a dry field. So, I do not like to cut a "window into the tissue but rather lay a flap. This technique allows you to have better hemostasis control hence better bonding. You do not want to have another surgery in order to rebond the button
and chain. Also, if you extract the tooth the same day as you expose the canine then you can run the chain through the primary tooth extraction socket. Finally, you need to try to luxate the tooth at the surgery. This will give you a pretty good idea if the tooth is ankylosed. If the tooth does not luxate and I am sure that it is ankylosed then I will extract the teeth that day and may or may not graft the area with bone. Then recommend implants or FPD. Price wise in our area the going rate is around $700 per tooth or #300 at the school. Also, some medical and dental insurances will pay for this procedure. You probably would have to get your dentist to write some sort of narrative on why this procedure is necessary. Hope this helps.
Todd
3rd year perio resident