Though implants are often used to replace single teeth, they can also be used for implant retained (or supported) dentures. An implant-retained denture is a custom-made prosthesis that is made to fit over and be supported by several implant posts surgically inserted into the jaw. Though it is similar in appearance to a traditional denture, an implant-retained denture is much more stable and comfortable because it is securely anchored to the jawbone via the dental implants, rather than affixed with temporary denture adhesive. Implant-retained dentures can be removable or fixed permanently into place.