Replacement of Failed Dental Implant?

From what you are describing, it sounds as though the procedure performed by your periodontist was successful. That being said, should that dental implant ever fail bone grafting could be performed. Once the graft is deemed a success, a new implant could be placed.  Make sure that you see your periodontist approximately every three months for a cleaning and bacterial reduction around the implant to help minimize the risk of implant failure.  Good luck.

It seems like your periodontist has done a great job in regenerating bone.  If there is not enough buccal bone and if threads are exposed, you need to have your hygiene kept at a very high and meticulous level.  Otherwise you may develop additional peimplantitis.  If that were the case and if it is more agressive that your prior episode, your implant might have to come out.  When that time comes, your implantologist may decide to place a wider diameter implant or just graft the area and come back in the future to place the implant.  In the meantime, good luck and work with your doctor on ways to keeping your oral hygiene meticulously clean and reducing any excessive load with your oral appliance/mouthguards.  Good luck and keep us informed.

It sounds like things are going better at this point.  If an implant fails, you can usually get a graft and replace the implant.  Try to get in every 3 months for a cleaning.  Prevention is the key to long term success!