Comparison of the Accuracy and Efficiency of Two Dynamic Navigation System Workflow for Fiber-post Removal: Small...

Area of Science:

• Endodontics
• Dental Technology
• Surgical Navigation

Background:

• Investigating the feasibility of a dynamic navigation system (DNS) small field of view workflow (DNS-SFOVw) for endodontic fiber-post removal.
• Comparing the accuracy and efficiency of DNS-SFOVw against the conventional large field of view workflow (DNS-LFOVw).

Purpose of the Study:

• To evaluate the accuracy of DNS-SFOVw for fiber-post removal.
• To assess the time efficiency of DNS-SFOVw compared to DNS-LFOVw.
• To determine the feasibility of using a smaller field of view in dynamic navigation for this specific dental procedure.

Main Methods:

• Fifty-six extracted human maxillary molars underwent fiber-post placement and subsequent removal using either DNS-SFOVw or DNS-LFOVw.
• Procedures were planned using X-guide software, with distinct registration methods for each workflow (virtual-based for SFOVw, marker-based for LFOVw).
• Accuracy was assessed by measuring 3D deviations and angular deflection, while efficiency was gauged by registration time, operational time, and number of mishaps, utilizing cone-beam computed tomography (CBCT) for analysis.

Main Results:

• The DNS-SFOVw demonstrated comparable accuracy to the DNS-LFOVw in fiber-post removal (P > .05).
• The DNS-LFOVw exhibited significantly shorter registration time (P < .05) and overall operational time (P < .05) compared to DNS-SFOVw.
• No significant difference was observed in the number of mishaps between the two workflows (P > .05).

Conclusions:

• The DNS-SFOVw is a viable and accurate alternative for endodontic fiber-post removal, performing comparably to the DNS-LFOVw.
• Both dynamic navigation workflows are time-efficient for fiber-post retrieval.
• The DNS-LFOVw offers advantages in terms of reduced registration and total operational time in this in-vitro setting.