Most dental implants are successful without the problems arising on the way so you need not fret too much about dental implant failure. This is not to state that there's no risk to be concerned about. Your dentist or periodontist should discuss the dental implant failing risk on your own individual needs which means you can make the best decision about getting them or not.
Replacement of missing tooth is important as they play a huge part in surrounding the cheeks and lips, and missing teeth will cause a change in facial appearance. The ultimate way to prevent this change is without a doubt to acquire another dental implant, as this also shields against bone reduction in top of the and lower jaws, which provides support for facial appearance.