Injuries to the lips and mouth Includes inner cheeks and the roof of the mouth (hard and soft palate) Front of the mouth includes the tongue. Also, includes the flap under the upper lip (frenulum).

Radiotherapy or chemoradiation to the head or neck can affect your salivary glands. This means you may not make as much spit (saliva) as before and so your mouth may become dry. Your salivary glands ...