Where can I find a specialist dentist?

Hello. For about 6 months, I have had a lump in my upper right jaw that has appeared and slowly grown. At first, while drinking a hot tea, I had a sharp pain and I thought it was a tooth. I had an appointment with my dentist who checked with x-rays, but didn't see anything special about the teeth. The lump is located between the base of the teeth and the left eye. I would like to have an x-ray and a consultation with a facio maxillary professional. I am near [...].