Accurately Defining the Location and Dimension of the Bony Lid Under the Guidance of Dynamic Navigation: Report on Three Cases.

The bony lid technique can be a highly valuable procedure when facing surgical challenges, such as the presence of a thick, intact cortical plate, associated with large periapical lesions in posterior teeth. The critical task of accurately defining the location and dimension of the bony lid is a clinical concern that demands careful consideration. This case report, through three cases, illustrates the application of dynamic navigation in guiding the determination of point positions and osteotomy angles on the buccal bone plate. Postoperative complications were not observed during the examination. Dynamic Navigation Systems (DNS) can aid in the planning of surgical approaches in large lesion cases with an intact thick buccal plate, enabling accurate access to the lesion site. The utilisation of DNS in the bony lid technique is a reliable and clinically feasible method for clinicians in complex surgical processes.