What are some of the long term issues people can have with a molar gutta percha root canal overfill? 2.6mm long and in my inferior alveolar nerve. Very rear bottom molar, #18. Initially caused severe numbness, and rythmic shock-like pains through my chin and lip. Today after two corrective surgeries with bone grafting by an oral surgeon, the tooth is gone. Still partial numbness in lip, and stabbing pains at injury site, dull ache in chin, and pain when eating and touching. Much improvement after gutta percha removal surgery and microneurosurgery. Neruontin, hyrdrocodones, percocetes, naproxin, and clonazapam is recommended. 7 months post injury. Underweight, depression, and medication side effects are secondary issues. Does the pain ever go away?