[Mandibular incisive canal by cone beam CT]

Area of Science:

• Dentistry
• Oral and Maxillofacial Surgery
• Radiology

Background:

• The mandibular incisive canal (MIC) is a critical anatomical landmark in the mandible.
• Understanding the MIC's three-dimensional structure is essential for safe dental implant placement.
• Previous imaging techniques may have limitations in accurately depicting the MIC.

Purpose of the Study:

• To determine the three-dimensional structure, course, and adjacent anatomical relationships of the mandibular incisive canal (MIC).
• To evaluate the utility of cone beam CT (CBCT) in visualizing the MIC for enhanced dental implantation safety.

Main Methods:

• Retrospective analysis of CBCT images from 80 patients.
• Measurement of MIC diameter and its distances to the buccal and lingual plates of alveolar bone.
• Assessment of MIC proximity to the inferior border of the mandible, tooth apex, and the mental foramen's horizontal plane.

Main Results:

• The MIC was visualized in approximately 78.75% of CBCT scans.
• Mean MIC diameter was 1.21 mm +/- 0.29 mm.
• Significant distances were recorded between the MIC and adjacent bony structures, providing spatial context.

Conclusions:

• CBCT provides clear visualization of the MIC's three-dimensional anatomy and course.
• CBCT imaging offers valuable guidance for planning and executing safe dental implant procedures.
• This technique enhances precision and reduces risks associated with mandibular anterior implantology.