The Mandibular canal (MC) is a bilateral anatomical structure extending from the mandibular foramen to the mental foramen carrying the inferior alveolar nerve , artery and vein.1,2 When administering regional anesthesia, performing periapical and dental implant surgeries, or implementing endodontic treatments in the mandible, it is important to localize the mandibular canal and mental foramen to prevent injuries.3,4
The purpose of this study was to investigate the course of the mandibular canal and the relationship between mandibular canal and the lower molars teeth
MATERIAL AND METHODS:
In this retrospective study 4 parameters were measured on CBCT images. The distance from the mandibular canal to the upper border of the mandible; the distance from the mandibular canal to the lower border of the mandible, the distance from the mandibular canal to the buccal border of the mandible; the distance from the mandibular canal to the lingual border of the mandible. A statistical analysis was performed to compare the size and differences between these parameters at the lower first molar, lower second molar and lower third molar.
For a new method; A line was drawn vertically from the top of alveolar crest to the middle of the lower edge of the mandible and the other line was drawn horizontally half of the vertical height of the mandible. Consequently, 4 zones were created. And noted the region which mandibular canal seen in.1 zone: superior and buccal side, 2. zone: superior and lingual side, 3. zone: inferior and buccal side, 4.zone: inferior and lingual side.
A total of 50 patients (27 women, 23 men), with a mean age of 51.87 ± 13.27 years were assessed. MC course was defined on CBCT images. The distribution of location of mandibular canal was the top at 3. zones (53% - 52%) in both gender groups and all teeth regions.