Noran Mohamed, Hossam Kandil, Ghada Borhan And Mahmoud Abdel Raouf Shalash,

ABSTRACT
Objective: This Study Was Conducted To Evaluate The Diagnostic Accuracy Of Multislice CT As An Imaging Modality For The Fabrication Of 3D Printed Bone Supported Implant Surgical Stent. Methods: 10 Dummy Implants (legacy, Implant Direct) Were Placed In Two Mandibular Models. MSCT Scanner (Philips Brilliance 64) Was Used For Preoperative Scans, Implant Planning And Surgical Guide Design Were Done Using Ondemand And Implant Studio Software, Selective Laser Sintering (FORMIGA P110, EOS) Was Used To Fabricate The Surgical Guide. Postoperative MSCT Scans Were Done Using The Same Preoperative Parameters. Both Preoperative And Postoperative Scans Were Superimposed For The Angular And Linear Deviations Measurements.

Results: The Statistical Analysis Of The Recorded Values Showed Mean Angular Deviation In Buccolingual Direction Of 1.66� (SD, 0.96), Mean Angular Deviation In Mesiodistal Direction Of 1.63� (SD, 1.04), And A Mean Linear Deviation Of The Implant Apex Of 0.47 Mm (SD, 0.27), With No Statistically Significant Difference Between Buccolingual And Mesiodistal Angular Deviation. Conclusion: MSCT Demonstrated High Accuracy Regarding Fabrication Of Bone-supported Implant Surgical Guide And Computer-aided Oral Implant Surgery Offers Prominent Accuracy And Reliability Regarding Implant Placement.