Patent ID: 8827699

Claim:
A method for making a surgical drill guide for use in installing a dental implant to replace teeth in a patient's mouth comprising steps: a. taking an impression of the patient's upper or lower mouth jaw bone, b. from said impression producing a denture replica of the patient's teeth and gums represented by said impression, c. attaching radiopaque markings onto said denture replica to indicate parts of said denture replica corresponding to the jaw bone to receive the dental implant, d. taking a CT scan of the patient's mouth and of said radiopaque-marked denture replica in the patient's mouth to show the jaw bone in relation to said denture replica, e. with computer software that is saved in a non-transitory computer readable medium and data from said CT scan, determining locations and angular alignments in said jaw bone for drilling and installing dental implants, and f. from said determined locations and angular alignments forming a surgical drill guide which includes opposite tissue and mouth side surfaces and drill guide holes which extend through said surgical drill guide from said mouth side to said tissue side surfaces, and which correspond to said determined locations and angular alignments in said jaw bone, and g. the further step for each of said drill guide holes of applying a set of rotational indicator marks on said tissue side and mouth side surfaces respectively of said drill guide, said rotational position marks of each of said sets being at the same rotational position about a central axis through said drill guide hole.