[Fox]

As an oral surgeon I will say that I tend to think in the bigger picture... restorable or non-restorable / keep or extract. As far as teeth go, if all you have is a hammer everything tends to look like a nail and your opinion would likely not be all that clarifying.

As for how would you restore or prognosis, you will likely get a better answer from someone else.

Your dentist who does fillings says he can do it and if the nerve tissue was involved then the endodontist (root canal specialist) or your dentist could do the root canal treatment.

A periodontist on the other hand would be able to give feedback on whether a graft would be needed or what might be the consequence if a gum tissue graft was needed and not done. Seems to me that is the issue and I think that would be the place to get the second opinion.

Hope that is helpful. Let me know how it goes.

-John