Beware if ;you have taken Zometa or any bissphonates. I took Zometa for about 6 months and developed small necrosis of the jaw. Although the drug was stopped, I cannot have anything done to remove a root canal or anything that would normally require removal of a tooth. The danger is that the area w/not heal. I've seen 2 oral surgeons and am told DEFINITELY NOT! During this time I had the top of a tooth w/a crown and root canal come off. Now I have a blank spot in my mouth where the crown was. Periodically, it gets infected which means and antibiotic, but I've tried for over a year to get it taken out w/no luck. Since the Zometa was stopped, I have developed mets to spine, hip and leg bones. I had radiation and am now free of pain. Good Luck! Doris