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Published on: October 18, 2021
Influence of deviation tolerances on the positioning accuracy using computer aided dynamic navigation in endodontic
Si-Min Liu1,2, Li Peng3, Yi-Jiao Zhao4
1Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, PR China.
Optimizing deviation tolerances in dynamic navigation for endodontic surgery is crucial. A 0.6 mm distance and 5° angle deviation tolerance setting improves positioning accuracy and operability.
Area of Science:
- Endodontic Surgery
- Medical Device Technology
- Surgical Navigation Systems
Background:
- Dynamic navigation accuracy is influenced by deviation tolerance settings.
- Assessing distance and angle deviation tolerances (DDT and ADT) is key for endodontic surgery.
- In vitro study to evaluate DDT and ADT impact on dynamic navigation positioning accuracy.
Purpose of the Study:
- To assess the influence of DDT and ADT on positioning accuracy in endodontic surgery.
- To determine optimal deviation tolerance settings for dynamic navigation.
- To improve operability and accuracy in endodontic procedures.
Main Methods:
- Standardized 3D printed models with 15 mm drilling depth and reserved cavities.
- Five groups with varying DDTs and ADTs (0.3 mm/5°, 0.6 mm/3°, 0.6 mm/5°, 0.6 mm/7°, 0.9 mm/5°).
- Trajectory analysis and comparison with design path to calculate operational accuracy using one-way ANOVA.
Main Results:
- Lower 2D and 3D distance deviations observed with 0.3 mm and 0.6 mm DDT when ADT was 5° (P < .01).
- Angle deviations were significantly smaller in the ADT 3° and 5° groups compared to the 7° group when DDT was 0.6 mm (P < .01).
- The 0.6 mm DDT and 5° ADT combination demonstrated reduced positioning deviations.
Conclusions:
- A 0.6 mm DDT and 5° ADT setting effectively reduces positioning deviation in dynamic navigation.
- The 0.6 mm/5° deviation tolerance is recommended for dynamic navigation in endodontic surgery.
- This optimized tolerance may enhance operation efficiency and ensure superior positioning accuracy.
