Mental nerve is a sensory nerve which provides sensation to the front of the chin and lower lip. It is a branch of the posterior trunk of the inferior alveolar nerve, which is itself a branch of the mandibular division of the trigeminal nerve (CN V).
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NBDE Quiz # 65
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1. Question
The mental nerve exits the mental foramen at which of the following sites?
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The correct answer D. The mental nerve exits the mental foramen below the second premolar, halfway down the mandible. The mental nerve is the terminal branch of the inferior alveolar nerve, a major branch of the third division of the trigeminal (V) nerve. It provides sensation to the lower lip and skin overlying the chin. As such, its location must be known before using local anesthetic block techniques
in this region. Moreover, knowing the mental nerve’s exact location can be of use in avoiding inadvertent injury during osseous genioplasty.Incorrect
The correct answer D. The mental nerve exits the mental foramen below the second premolar, halfway down the mandible. The mental nerve is the terminal branch of the inferior alveolar nerve, a major branch of the third division of the trigeminal (V) nerve. It provides sensation to the lower lip and skin overlying the chin. As such, its location must be known before using local anesthetic block techniques
in this region. Moreover, knowing the mental nerve’s exact location can be of use in avoiding inadvertent injury during osseous genioplasty.
