Hi @hlp123, @jenniferhunter brought me into your conversation. I have a dental background and can maybe offer a little more information on your situation.

I’m wondering how far down this tooth has broken off below the gum line and if there was decay involve. If the nerve is involved it will not shrink and be fine. Usually when this happens the nerve dies and can become infected if the damaged tissue isn’t removed. (It would become an abscess at the bottom tip of that root)

That’s when a root canal treatment is done. It removes the dead nerve tissue in the root, while preserving the actual root itself. The nerve chamber inside the root looks like a tiny hollow straw, inside of that tube is the nerve. The tube is essentially cleaned out and the old nerve tissue is removed, replaced with a sterile sealant.
Where I’m going with this is, if there isn’t extensive decay on that root and the bone around that root is sound, you might be able to have a root canal treatment to preserve the root of the tooth for future use. A post could be inserted into the root and a permanent replacement tooth (crown) cemented on top. That way you would not need a dental implant in the future.

If, however, the oral surgeon is seeing quite a bit of damage to the tooth root with decay, which may be why it broke off at the gum line, he is making the right call to remove that damaged root now. As far as the Reclast injection and your having an extraction done. You should be fine. I read your comments regarding the oral surgeon’s plan for pre and post extraction. It is a ‘risk vs benefit’ situation as he stated. Your risk of osteonecrosis is minimal and he’s doing all he can to minimize infection and promote healing.

Are you feeling any discomfort with this broken tooth? Can you tell me is this an upper or lower tooth and where is it located in your mouth?