Skip to content
Submit a Ticket
  • There are no suggestions because the search field is empty.

How does the guidance actually work during a Zygo surgery?

In the CHROME GuidedSMILE / Option 1 approach to a zygomatic case, ROE deliberately controls the coronal aspect of the drill, meaning the portion in the palate, so that the implant exit point lands where the prosthesis needs it. The remainder of the drill guidance and implant apex positioning is performed by the surgeon, commonly freehand, which is how most surgeons place zygomatic implants today. Controlling the exit point is what allows a pre-manufactured prosthesis to be attached to the abutments and delivered at surgery instead of picking up a denture chairside.

A typical quad zygomatic case uses the familiar stackable CHROME components: an edentulous pin guide, fixation base (pinned to the metal, often requiring only minimal bone reduction), osteotomy control, carrier guide, the immediate provisional prosthesis, and the RAPID Appliance, along with bone reduction and working models.

Several design features make the guidance practical in surgery.

  • Catch / half-arc design. A "catch," or half arc, is left on one guide so that different size drills can pass through it during surgery. When you are ready to place the implant, the implant mount fits into the guide so you can control depth, and finally rotation is set using the nubs. This is why the system can use two cooperating guides.
  • Rotational indexing nubs. As with standard CHROME, angled sites are indexed by nubs that define the precise rotational stop, so abutments, temporary copings, and prosthetic holes line up.
  • Simple guide labeling. Guides are marked with dots to keep track of which guide belongs to which implant. For example, one side may use one dot and two dots, while the opposite side uses blue dots numbered one and two.

Cases may also include optional planning decisions confirmed in surgery, such as an implant in the incisive canal when the anatomy allows.

ROE continues to develop this technology, including future work toward controlling the full drill trajectory. For now, the Zygo system provides an ideal, restoratively driven way to seat the prosthesis at surgery while leaving apical positioning to the surgeon. See the Quad Zygomatic Patient Case and Pterygoid and Nazalus videos on the GuidedSMILE Zygo page.

 

Resources

    Contact Information

    For immediate chairside support or troubleshooting assistance, contact ROE Dental Laboratory: