If the implant does not integrate, you are back in the 02 chamber to get that site to heal up again, essentially $ and months into it and still at square one. Bridges have been useful for many many decades, only in the last 20 years have implants become an alternative. If you keep a well designed bridge clean, (one that has few food traps) it will service you the rest of your life. Is it a cool as getting an implant, no. I designed implants and their abutments etc, for most of my life, I love implants and the science behind them.

But in radiated bone the results are not stellar. Perhaps if that area of you mouth got little radiation because of IMRT, I would change my mind. Or if you just get off on sitting in 02 and reading, have the time on your hands, you can take the shot. The positive to the implant is that it is not going to require the cutting down of the tooth adjacent to to the missing tooth on each side. So the last consideration in my mind would be what are those teeth like? If they are crowned already, have big restorations in them, or even caries etc. cutting them down is not destroying healthy virgin dentition to be the abutments for the bridge. In that case cut away.