This procedure involves screwing in a titanium screw directly into the jaw or bone structure to form the base for the attachment of a crown. This is the only resort for lost teeth that have been previously pulled due to irrecoverable damage or infection. The screw is left to be accepted by the body and for the surrounding tissue to heal around it which take a few weeks. After which the orthodontist forms a base using the came material the crown is made of and then continues the fitting process to make the crown as similar as possible to the surrounding normal teeth.