Submandibular salivary gland sialoliths perforated through the oral floor.

A brief review of the literature concerning salivary gland stones is presented. The stones do not tend to occur within the gland as frequently as in the respective ducts. The stones may be formed anteriorly in the submandibular duct, posteriorly in the extraglandular portion of the duct, or in the main glandular portion. Perforation of the floor of the mouth may occur in cases of anterior ductal stones. On the other hand, it is rare in cases of posterior ductal and intraglandular stones. A case of posterior ductal stone, perforated through the floor of the mouth, has been presented.