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Published on: October 18, 2021
The validity of marker registration for an optimal integration method in mandibular navigation surgery
Sang-Hoon Kang1, Moon-Key Kim, Jin-Hong Kim
1Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.
Summary
For mandibular navigation surgery, registration using implanted orthodontic screws is generally more accurate than using tooth cusps. Tooth cusp references may be suitable for dentoalveolar surgery registration.
Area of Science:
- Oral and Maxillofacial Surgery
- Medical Navigation Technology
Background:
- Accurate patient positioning is crucial for successful mandibular navigation surgery.
- Comparing registration methods is essential for optimizing surgical accuracy.
Purpose of the Study:
- To evaluate the accuracy of marker-based and marker-free registration techniques in mandibular navigation surgery.
- To compare the efficacy of orthodontic screw versus tooth cusp references for surgical registration.
Main Methods:
- Two point-to-point registration methods were tested: marker-based using orthodontic screws and marker-free using tooth cusps.
- Navigation software and equipment were utilized to assess registration accuracy across various mandibular anatomical areas.
Main Results:
- Screw-based registration demonstrated higher accuracy in most areas compared to tooth cusps, with errors under 1.5 mm in specific regions.
- Tooth cusp registration showed higher accuracy in dentoalveolar and mental foramen areas, with errors under 1.0 mm.
- Registration errors exceeding 2.0 mm were noted in the condyle, condyle neck, and sigmoid notch areas with screw references.
Conclusions:
- Orthodontic screw registration generally offers superior accuracy for mandibular navigation surgery.
- Tooth cusp references are a viable alternative for registration in specific dentoalveolar surgical applications.
