Accuracy of Dynamic Navigation and Free Hand Surgery Using Zygomatic Implants for Rehabilitation of Atrophic Maxilla – A Split Mouth Study

Aim The zygoma implant has proven to be a viable treatment option for atrophic edentulous maxillae as well as in post maxillectomy conditions. This study aimed to assess the accuracy of implant placement using the conventional technique versus dynamic navigation technology.

Methods Zygomatic implant placements were performed using the freehand technique in the control group and the dynamic navigation system in the test group. The deviations were assessed by comparing pre and post-operative CBCT scans using the "Evalunav" module in the software.

Results The mean deviations at the entry site (2D) were significantly lower with the navigation system than with the freehand technique. At the apex (3D), the deviation in implant placement was greater in the freehand group compared to the navigation group. A further comparison was done between the right and left sides of the arch, where a greater deviation on the right side of the arch than on the left was observed with no statistical significance.

Conclusion The Dynamic navigation system in implant surgery for accurately placing zygomatic implants in patients with atrophic maxilla requiring full-arch rehabilitation reduces variability/errors, ensuring more precise treatment outcomes.