embodiments a computer treatment planner can provide input by e g directing the marking a planned hole parameter on a virtual or physical 3 d representation at the planned location site of an endosseous implant with for instance a computer marking device or a physical marking device respectively in some embodiments a ctt is produced as shown in fig1 the ctt will generally be fashioned from a rigid material and will include three or more calibration marks which can be in the form of depressions placed at various locations on a surface of the ctt in some cases the ctt is roughly triangular in shape and includes calibration marks arranged near each vertex of the ctt the ctt can be adapted to the mmr using silicone or other suitable adhering material once the ctt has been immobilized relative to the mmr the combination of replica and calibration template is mounted on a cnc1 machine the cnc1 machine is then used to record to relative position of the calibration marks in the ctt and this data is included in the virtual treatment plan data in some embodiments recorded positional calibration data and the ctt are later used to calibrate a second cnc machine for example a cnc2 machine which can be used in performing the surgery as well as in the installation of the prosthesis prior art methods of surgical delivery of implants generally employ a common approach a surgical guide is mounted on the patient 39 s jaw the surgical guide includes drill guides that direct the dental professional 39 s hand in terms.