Hi roberto, sometimes the roots of your wisdom teeth can be seating in the sinus area and infection can cause pressure on your sinus. If you are having this problem for past year or so, I believe you should get your wisdom teeth extracted and mainwhile go for MRI or CAT scan to make sure there is no mass in the roof of the mouth. Sometimes begnine tumor or cancerous tumor can cause pressure as well.
Good LUck
voordon
