Anatomy & Histology · single question
The mylohyoid nerve as an accessory nerve may provide sensory supply to which mandibular teeth?
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Correct answer: D. All mandibular teeth
✓ D) All teeth in the mandible (potential accessory supply) is correct per the answer key.
The mylohyoid nerve (branch of the inferior alveolar nerve, given off before entering the mandibular foramen) can provide accessory innervation to mandibular anterior teeth and occasionally molars. It runs in the mylohyoid groove and may enter the mandible anteriorly. This accessory supply is a key reason why IAN blocks sometimes fail — supplemental mylohyoid nerve block or intraosseous injection is needed. Some sources specifically cite the mandibular incisors and molars as most affected.
The mylohyoid nerve (branch of the inferior alveolar nerve, given off before entering the mandibular foramen) can provide accessory innervation to mandibular anterior teeth and occasionally molars. It runs in the mylohyoid groove and may enter the mandible anteriorly. This accessory supply is a key reason why IAN blocks sometimes fail — supplemental mylohyoid nerve block or intraosseous injection is needed. Some sources specifically cite the mandibular incisors and molars as most affected.
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