Impacted wisdom teeth may produce referred pain via
**Core Concept**
The referred pain phenomenon is a complex process involving the convergence of nociceptive and non-nociceptive afferent fibers onto the same spinal cord neurons, which can lead to pain perception in areas not directly innervated by the painful stimulus. This process is mediated by the trigeminal nerve and its branches, including the auriculotemporal nerve, which is responsible for transmitting pain from the auricle and surrounding structures to the trigeminal ganglion.
**Why the Correct Answer is Right**
The auriculotemporal nerve carries fibers from the trigeminal ganglion to the mandibular division of the trigeminal nerve, which can lead to referred pain in the area innervated by the auriculotemporal nerve, including the external auditory meatus and surrounding structures. Impacted wisdom teeth can irritate the surrounding soft tissues, leading to the release of pain mediators that stimulate the nociceptors and eventually result in referred pain in the auriculotemporal nerve distribution.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not directly related to the referred pain phenomenon caused by impacted wisdom teeth. While the maxillary nerve is a branch of the trigeminal nerve, it is not primarily responsible for transmitting pain from impacted wisdom teeth.
**Option B:** The inferior alveolar nerve is responsible for transmitting pain from the lower teeth, but it is not directly involved in the referred pain phenomenon caused by impacted wisdom teeth.
**Option C:** The lingual nerve is responsible for transmitting sensation from the tongue, but it is not primarily involved in the referred pain phenomenon caused by impacted wisdom teeth.
**Clinical Pearl / High-Yield Fact**
The auriculotemporal nerve is a common source of referred pain from impacted wisdom teeth. Remember that the auriculotemporal nerve carries fibers from the trigeminal ganglion to the mandibular division of the trigeminal nerve, which can lead to referred pain in the area innervated by the auriculotemporal nerve.
**Correct Answer:** C.