ĐÁNH GIÁ TÁC ĐỘNG CỦA KÍNH HIỂN VI 3D LÊN HIỆU QUẢ THAO TÁC TRONG THỰC HÀNH NỘI NHA

Abstract

Objective: To evaluate the impact of a 3D-DOM on accuracy and working time in simulated endodontic procedures, and to compare postgraduate dentists and dental students regarding perceived visual clarity, spatial orientation, and ergonomic comfort. Materials and Methods: Cross-sectional study on doctors and students performing a needle insertion task on targets placed on a dental phantom. Each participant performed the task under two conditions: naked eye and with a 3D microscope. Outcomes were assessed based on accuracy (Bowers scale), operation time, and subjective feedback on visual ability, spatial orientation, and working posture. Results: Operative accuracy significantly improved when using the 3D microscope compared to the naked eye among both dentists and students (p < 0.001). However, the procedure time was also significantly prolonged in both groups. No statistically significant performance difference was observed between dentists and students. The majority of users rated the 3D microscope as superior in terms of visual ability, spatial orientation, and postural support. Conclusion: The 3D microscope provides superior operative accuracy and visual experience, albeit at the cost of increased procedure time. Integrating this device into training and clinical practice holds the potential to enhance treatment quality and ergonomics for practitioners.