Mental foramen is located near: (A) First premolar of mandible, (B) Second molar of mandible, (C) Canine of mandible, (D) Canine of maxilla
Answer is A. On the medial surface of the mandible is the mandibular foramen for inferior alveolar nerve and vessels. The foramen leads in to mandibular-canal which opens on the lateral surface of the mandible at mental foramen, situated below the second premolar tooth.
Fracture of mandible most commonly involves neck.