What are the causes of palatal tori? can that be associated to oral cancer?

Normal: Tori are normal bony growths on the plate or the lower jaw. They are not cancer so don't worry. They tend to get larger with age. Unless they interfere with your daily functions there is no reason to remove them. The surgery can be brutal.

Tori Are Normal: Palatal tori, and mandibular tori are a variation of normal. They are not associated with any disease. A regular dental exam including radiographs, a careful soft tissue exam is important two times a year to screen for oral cancer. There are new technologies that i employ in my office that shines a light that can catch oral cancer at it's earliest stages. Palatal tori are a variation of normal.

Torus Pallatinus: Palatal tori are bony enlargements occurring in the midline of the hard palate in about 20% of the population. They are just developmental areas of benign excess bone and pose absolutely no relationship to the development of oral cancer in any way.

Not Cancer: Palatal tori are mostly a genetic issue. 15% of the population have them. They are exacerbated by clenching and grinding your teeth. There is no correlation to oral cancer.