Dental implants according to cosmetic dentists are a superior procedure than bridges or dentures.
Dental implant is the best option to help replace missing tooth. It is the closest thing to the actual tooth. It helps conserve teeth, bone and gum and that helps in the long term to preserve overall oral health of the patients. Dental implants help the elderly to eat better and have a better quality of life. For the younger people who lose teeth prematurely due to various reasons, it is now possible to have almost normal teeth helping preserve both their other teeth and self-confidence.
Full tooth implant is a titanium tube like piece, that the tooth connects to, is implanted in your jaw. After that has established it is uncoated and then the actual porcelain tooth, that has another titanium piece on the inside of it, is then inserted into the tube. This whole procedure is done at the site of the former tooth and surrounding gum and teeth are not affected.
One very important reason why implants are better than bridges is because dental bridges and dentures cause the erosion of teeth, bones and gum which is not the case with a tooth implant. Bridges usually are supported by neighboring teeth. The bridge actually rests on these teeth. Over time, the rubbing of the bridge against the teeth causes them to erode and get damaged.
If you can not afford dental implants than the second option you can explore are dental bridges. Not the best, but these are way cheaper. You have to take the underlying risk damaging the neighboring "good" teeth which can get eroded because the dental bridges are resting on them.
Before you decide against implants due to the high cost of dental implants know that they are a great investment. They help save bone, as it is restricted to a single site and you will not have to worry about damage neighboring teeth. However, bear in mind that it needs lifetime maintenance and you still need to go back to your dentist for check-ups.