People who have dry mouth are more likely to get cavities. Dry mouth may be caused by illness, medications, radiation therapy and chemotherapy, and depending on its cause, may be either permanent or temporary.
The three main types of cavities are: coronal, root, and recurrent decay. Coronal cavities, the most common type of cavity occurring in children and adults, usually are located on chewing surfaces or between the teeth. Root cavities are usually found on the root of the tooth when part of the tooth’s root is exposed, infecting the dental pulp. Recurrent decay is formed around existing fillings and crowns.
