Sialoliths, commonly known as salivary stones, are hard mineral deposits that form in the salivary glands. They can block the flow of saliva, leading to swelling and pain in the affected area. The most commonly affected gland is the submandibular gland, located beneath the jaw. These stones can vary in size and may cause symptoms such as dry mouth, difficulty swallowing, or a bad taste. Treatment options include hydration, massage of the gland, or in some cases, surgical removal of the stone. Maintaining good oral hygiene can help prevent their formation.