Augmented Reality Head-Mounted Device and Dynamic Navigation System for Postremoval in Maxillary Molars.

Area of Science:

• Dental Surgery
• Medical Technology
• Augmented Reality Applications

Background:

• Fiber post removal from maxillary molars presents challenges in surgical navigation.
• Dynamic navigation systems (DNS) aid in precise drilling trajectories.
• Evaluating new technologies like AR HMDs for surgical guidance is crucial.

Purpose of the Study:

• To assess the feasibility of using an AR HMD with DNS for fiber post removal.
• To compare the accuracy and efficiency of AR HMD + DNS versus DNS alone.
• To evaluate the safety and time-effectiveness of the AR HMD in a surgical simulation.

Main Methods:

• Fifty maxillary molars with fiber posts were divided into two groups: AR HMD + DNS and DNS alone.
• Cone beam computed tomography (CBCT) was used for pre- and post-operative analysis.
• Three-dimensional deviations (GCD, GAD) and angular deflection (AD) were measured; mishaps and operating time were recorded.

Main Results:

• Fiber post removal was successful in all samples.
• The AR HMD + DNS group demonstrated significantly higher accuracy with lower deviations (GCD, GAD, AD) compared to DNS alone (P < .05).
• No mishaps occurred in either group, and both methods were comparable in operating time (P > .05).

Conclusions:

• AR HMDs can be safely integrated with DNS for fiber post removal in maxillary molars.
• AR HMD + DNS significantly improves navigational accuracy over DNS alone.
• Both AR HMD + DNS and DNS are time-efficient techniques for this dental procedure.