There are several differences:
A dental implant preserves jaw bone.
We do not have to destroy neighboring healthy teeth by grinding down the teeth to pegs in order to accept a crown.
Implants last longer than a traditional crown and bridge. Implants are designed to last a lifetime, while a traditional crown and bridge is projected to last approximately 10 years and may need to be replaced.
Although dental implants have become the standard of care, they are more expensive than old tooth replacement methods. They are a better choice for the money; however, some dentists still recommend traditional tooth-supported bridges for patients due to their own comfort level or when patients insist on having the immediate lowest possible fee for tooth replacement. Most dentists today detest the idea of grinding down perfectly healthy teeth to place a traditional bridge; and therefore, will almost always recommend dental implant treatment in these cases.