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Accessory mental foramen assessment using cone-beam computed tomography.

Munetaka Naitoh¹, Yuichiro Hiraiwa, Hidetoshi Aimiya

¹Department of Oral and Maxillofacial Radiology, School of Dentistry, Aichi-Gakuin University, 2-11 Suemori-dori, Chikusa-ku, Nagoya, Japan. mune@dpc.aichi-gakuin.ac.jp

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics

|December 17, 2008

Summary

Accessory mental foramina, which connect to the mandibular canal, were found in 7% of patients using cone-beam computed tomography (CBCT). Their presence did not significantly alter mental foramen size.

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Area of Science:

Anatomy
Radiology
Dentistry

Background:

Accessory mental foramina are anatomical variations.
Their prevalence and characteristics are important for dental procedures.

Purpose of the Study:

To evaluate the accessory mental foramen using cone-beam computed tomography (CBCT).
To assess the prevalence and dimensions of accessory mental foramina.

Main Methods:

157 patients were analyzed using 2D CBCT images.
Mental and accessory mental foramina continuity with the mandibular canal was assessed.
Foramen sizes and distances were measured and statistically analyzed.

Main Results:

Accessory mental foramina were identified in 7% of the study population.
No significant difference in mental foramen size was observed between patients with and without accessory mental foramina.
The mean distance between the mental and accessory mental foramina was 6.3 mm.

Conclusions:

Accessory mental foramina are present in 7% of individuals, as visualized by CBCT.
These foramina demonstrate continuity with the mandibular canal.
CBCT is effective for identifying accessory mental foramina.