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Research on a novel digital tooth sectioning guide system for tooth sectioning during mandibular third molar
Jun Zeng1, Ye Jiang2, Yudong Liu1
1Department of Oral and Maxillofacial Surgery, Guangdong Engineering Research Center of Oral Restoration and Reconstruction Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510182, China.
A new digital tooth sectioning guide significantly improves mandibular third molar extraction accuracy. This technique enhances predictability and reduces risks for dental surgeons of all experience levels.
Area of Science:
- Oral Surgery
- Dental Technology
- Surgical Navigation
Background:
- Mandibular third molar extraction poses challenges due to anatomical complexity.
- Inaccurate sectioning can lead to complications and nerve damage.
Purpose of the Study:
- To develop and evaluate a novel portable tooth sectioning guide.
- To improve the accuracy of mandibular third molar extraction procedures.
Main Methods:
- 3D-printed mandibular third molar models with varying impactions were used.
- Dental surgeons performed sectioning using both digital guided and traditional techniques.
- Postoperative cone-beam computed tomography (CBCT) assessed apical and angular deviations.
Main Results:
- The guided technique significantly reduced mean apical deviation (0.28-0.32 mm) compared to the conventional technique (1.12-1.54 mm).
- Mean angle deviations were also significantly lower with the guided technique (1.47-1.88°) versus conventional (6.57-8.01°).
- P < 0.001 indicated statistically significant differences between techniques.
Conclusions:
- The digital guide technique offers superior predictability and accuracy in tooth sectioning.
- This method ensures successful outcomes regardless of the dental surgeon's experience level.
