Upper and lower jaws are anatomically structured differently. The bone in the upper jaw which is part of the skull is more porous and not as dense as the lower jaw. The lower jaw is a separate anatomical structure and it has very dense bone. Because of this different number of implants are required to support a denture.
The upper jaw, because of more porous structure, usually requires a minimum of four implants to provide the upper denture with uniform retention and stability. The lower jawbone being dense and more compact usually requires only two dental implants to obtain desired result.
Each individual is anatomically different and the number of dental implants required for a desirable result can depend on other factors. These include the amount of bone present, type of bone available, the natural anatomy of the jaw, anatomical variations, and proximity to vital anatomical structures. For example, if a patient has been wearing full dentures (false teeth) for an extended period of time, greater number of smaller diameter implants would have to be used due to decreased amount of bone available. We are all structured differently and the dentist and surgeon should make the final determination as to the number of dental implants required.
Dentures in an hour advertisements are common. This consists of placing dental implants and modifying or fabricating new denture to fit over these anchors. The dentures are set in place to improve esthetics and chewing is deferred until healing is complete. Time of healing will vary on location and the healing ability of the patient. Time frame of three to six months is common. The success of this procedure varies on many factors. If you are considering immediate loading dental implants be sure to ask about warranty in case something doesn’t go as planned. Learn more about immediate loading dental implants.