implants - international magazine of oral implantology

_Thisclinicalcaserequiredoptimalimplantplace- mentbaseduponarestorativelydriventreatmentplan and guided surgery. To achieve this goal, we made use of CT scans, SimPlant planning software (Materialise Dental),thenewZimmerGuidedSurgeryInstrumenta- tion and the new Immediate Smile model (Materialise Dental).Thepatientwasa49-year-oldwhitefemalein goodhealth,completelyedentulousinthemaxillaand wore a complete upper denture. On the lower jaw, she woreanimplant-retainedover-denture. The planning phase for the case began with a CT scanutilizingthei-CatandtheDualScanprotocol(Ma- terialise Dental). The patient’s existing denture was transformedintoascanprosthesisbygluingeightDual ScanMarkersontothesurface.Aradiolucentbiteindex was made to secure the prosthesis in the correct posi- tion. The patient was first scanned in the i-Cat 17–19 while wearing the conversion prosthesis and the bite index. In a second scan, the conversion prosthesis was scanned alone. The resulting CT data was loaded into SimPlant, and the scan prosthesis was superimposed upon the study using the SimPlant Dual Scan wizard (Fig.1). Using SimPlant, the optimum implant positions were determined, based upon available bone with a minimumof3mmbetweenimplants,andthedesignof I clinical technique _ immediate restoration Immediate restoration in the fully edentulous maxilla region Author_Dr Max J. Cohen, USA 20 I implants3_2011 Fig. 2Fig. 1 Fig. 4Fig. 3 Fig. 5 Fig. 6