Hi Diana,
I do not about your particular case, but tooth problems or any other oral infections can cause or contribute to facial nerve pain and/or neuralgia. Various conditions associated with the TMJ can cause these issues to occur as well.

A good website to learn about facial pain is www.drshankland.com
Dr. Shankland has also written two very informative books about the subject. In case you do some additional research about Shankland, you may find that he has recently had his dental license temporarily suspended. Just like so many others before him who have devoted their lifes work to helping people with various types of facial pain/neuralgia from the perspective that there is a scientific connection between the mouth and the whole body.

Unfortunately, the "Integrative" approach of connecting dentistry and medicine has not been recognized by the large dental associations and they prefer to keep the two professions separate. Of course that is a huge governing body that puts alot of pressure on the dental practitioner to never step outside of the box. So for those that do take the Integrative approach, they are continuously scrutinized by these large dental associations and insurance companies who are out to stop them from practicing this type of healthcare. Fortunately, due to consumers becoming more and more aware of the oral/body health connection through research or personal experience, this closed minded thinking will eventually change. Hopefully, it will be sooner than later........

Have you had any recent dental radiographs done? One that may be helpful is called a Panorex. This shows the maxillary and mandibular areas of the head in it's entirety.

I hope this information was helpful.
Bryanna