I have this bump on the roof of my mouth behind my front teeth. it is painful, swells when irritated. i have had it for years, wont go away.

Could be papilla: The incisive papilla is a projection on the palate near the incisors. It may be but i don't want to guarantee since it needs to be examined. Often, it is not a problem, but if it is really troublesome for you, i would consult an oral surgeon and get options.

Nasopalatine duct: Cyst is a good possibility. . This is a common developmental cyst. Can be seen at any age but most common in 40-60 year old men. Depending on size and symptoms treatment can range from no treatment needed to surgical removal by an oral surgeon. Once treated they rarely reoccur. Have an evaluation by your dentist. If needed they can refer you to an oral surgeon.

NDC: Nasopalatine duct cyst. Is a non-odontogenic (not tooth relelated) cyst that only occurs in the anterior maxilla from the embryonic remnants of nasopalatine ducts. It is usually located between two upper frontal teeth. Depending on the size and infection, treatment could be no treatment or surgical elimination. Rec.: see your dentist for evaluation and panoramic x-ray.

Bump behind 8-9: There is a large papilla there covering a foramen in the palatal bone that can become easily irritated when eating certain foods. It is always there but may be more noticeable when irritated. If it is constantly present it could be a nasopalatine cyst. You need to see your dentist for evaluation and tx suggestions if any, as it is not always necessary to do anything here.