I have a bright white circle spot on my x-ray above my tooth in my gum dentist don't know what it is?

Not sure: White on an x-ray is usually metal. A white spot on ur gum usually is some kind of ulceration or hyperkeratinized tissue. If ur dentist does not know what it is, get to another dentist for 2nd opinion. I would be glad to give u a 2nd opinion. I'm in boothwyn. Dr certo 6103641345.

Radiolucent area: If its bright white under the gum, above roots of tooth it could be a filling placed at the root tip after an apicoectomy. Did you have a surgical procedure? Any dense radioopaque area can be a foreign body: piece of metal, shrapnel, etc. More history an exact location would help to make determination.

Very unusual: I am surprised that your dentist does not know what is. I could make some educated guesses but if what you describe is the case, you might want to check with another dentist or two. They should be able to answer that question for you. There are only a limited number of things it could be. Interesting.

Neither do I: As we can't see the x-ray, cannot determine the cause of the image anomaly. You may require additional x-rays taken in different orientations,or perhaps a CBCT (cone beam CAT Scan) would be more diagnostic. Or your Dentist could submit the original x-ray to theDepartment of Radiology at Penn or Temple Dental Schools for an opinion.