Assuming everything is hunky dory, then we do start talking about Trigeminal Neuralgia
. If you looked at the picture of the Trigeminal
Nerve (cranial nerve V) and read my description, you'll remember that the nerve has three branches (Tri = three, Geminal = roots). V1 handles sensation from the top of the face above the eye. V2 has the middle part of the face, nose, upper gums/teeth, and upper lip, + others.
V3 has the lower jaw, lower teeth and gums, lower lip +.