An implant is a synthetic tooth root, typically made from titanium metal, that is surgically placed into the jawbone. Once the implant is transfixed, a replacement tooth, either removable or permanent, is attached to the implant. The number of implants you require can vary; if you are missing only one tooth, one implant will suffice. On the other hand, if you are missing several consecutive teeth, you made need multiple implants to support a permanent bridge (or a full bridge, if you have lost all of your teeth.)
Implants are structurally sound and do not rely on adjacent teeth for support; thus, they will not affect the integrity of your other teeth. In contrast, bridges and dentures are not fixed to the bone, and can be unstable. Implants also look natural, fitting in seamlessly with the rest of your teeth, and are extremely durable. In fact, implants are expected to last a lifetime in contrast to bridges, which are expected to last up to 10 years.