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Fig. 2 | International Journal of Implant Dentistry

Fig. 2

From: Accuracy of keyless vs drill-key implant systems for static computer-assisted implant surgery using two guide-hole designs compared to freehand implant placement: an in vitro study

Fig. 2

Guide-hole designs: manufacturer sleeve sites for the drill-key system (A) including three gaps between drill, key, sleeve, and guide material; and the keyless system (B) including two gaps between drill, sleeve, and guide material. Sleeveless sites for the drill-key system (C) including two gaps between drill, key, and guide material; and the keyless system (D) including one gap between drill and guide material. Visualization of the keyless TH guide-hole deterioration via scanning electron microscope images representing pre- and post-operative sites for MS (E, F) and SL (G, H). ST drill-key Straumann, TH keyless Thommen, MS manufacturer’s sleeve, SL sleeveless sites

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