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Volume 30 , Issue 4
July/August 2017

Pages 367–369


Reliability of a CAD/CAM Surgical Guide for Implant Placement: An In Vitro Comparison of Surgeons’ Experience Levels and Implant Sites

Su-Jung Park, DMD, MSD, PhD/Richard Leesungbok, DMD, MSD, PhD/Taixing Cui, DMD, MSD/Suk Won Lee, DMD, MSD, PhD/Su-Jin Ahn DMD, MSD, PhD


DOI: 10.11607/ijp.5179

Purpose: This in vitro study evaluated the reliability of a surgical guide with regard to different levels of operator surgical experience and implant site. Materials and Methods: A stereolithographic surgical guide for epoxy resin mandibles with three edentulous molar sites was produced using a computer-aided design/computer-assisted manufacture (CAD/CAM) system. Two surgeons with and two surgeons without implant surgery experience placed implants in a model either using or not using the CAD/CAM surgical guide. Four groups were created: inexperienced surgeon without the guide (group 1); experienced surgeon without the guide (group 2); inexperienced surgeon with the guide (group 3); and experienced surgeon with the guide (group 4). Planned implants and placed implants were superimposed using digital software, and deviation parameters were calculated. Results: There were no significant differences in any of the deviation parameters between the groups when using the surgical guide. With respect to the implant sites, there were no significant differences among the groups in any parameter. Conclusion: Use of the CAD/CAM surgical guide reduced discrepancies among operators performing implant surgery regardless of their level of experience. Whether or not the guide was used, differences in the anterior-posterior implant site in the molar area did not affect the accuracy of implant placement.


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