Though the procedure does take some time, once it is complete, you will have a completely natural looking, functional tooth where you once had a gap between your teeth. You no longer have to worry about adjacent teeth shifting, damaging their roots, or bone loss in your jaw.
Dental implants have one obvious advantage over full or partial dentures in that they are permanent and do not require you to care for them in any special way other than brushing and flossing as normal. However, they have another advantage over bridges, as well.
A bridge is much like a dental crown, but instead of replacing one tooth, it replaces multiple teeth. If you choose a bridge over a dental implant, it will have to be anchored on the adjacent teeth. That will require them to be shaven down the same way we would prepare a tooth for a dental crown. If these teeth are otherwise healthy, many patients would much rather keep them as they are instead of ruining them to put a bridge in place.