Torus mandibularis (pl. mandibular tori) is a bony growth in the mandible along the surface nearest to the tongue. Mandibular tori are usually present near the premolars and above the location of the mylohyoid muscle’s attachment to the mandible. In 90% of cases, there is a torus on both the left and right sides, making this finding an overwhelmingly bilateral condition.
The prevalence of mandibular tori ranges from 5% – 40% and are less common than bony growths occurring on the palate, known as torus palatinus. Mandibular tori are more common in Asian and Inuit populations, and slightly more common in males. In the United States, the prevalence is 7% – 10% of the population with similar findings between blacks and whites.
It is believed that mandibular tori are caused by several factors. They are more common in early adult life and are associated with bruxism. The size of the tori may fluctuate throughout life, and in some cases the tori can be large enough to touch each other in the midline of mouth. Consequently, it is believed that mandibular tori are the result of local stresses and not solely on genetic influences.
Mandibular tori are usually a clinical finding with no treatment necessary. It is possible for ulcers to form on the area of the tori due to trauma. The tori may also complicate the fabrication of dentures. If removal of the tori is needed, surgery can be done to reduce the amount of bone, but the tori may reform in cases where nearby teeth still receive local stresses
This is hard overgrowth of jawbone that takes place during the development of the jaws
- It can occur in the midline of the palate (torus palatinus) or on the inside of the lower jaw next to the premolar teeth (torus mandibularis).
- It is usually harmless and rarely needs to be removed.
Dental fistula/abscess – Periapical Abscess
Ignoring that pain in your tooth can be dangerous to your health. If you have an abscessed tooth, and you leave it untreated, the infection can spread to your neck and head—and cause you to die.
An abscessed tooth is caused by bacteria that invade the soft tissue surrounding your tooth or at the root of your tooth. The abscess is attempting to isolate the infection and build a fence around the infection so that it can’t spread to other areas of your body. The ball of pus that forms contains dead and live bacteria, white blood cells that are trying to stop the infection, and liquefied dead tissue. One of the major causes of an abscess is an untreated cavity. The cavity opens the door to give bacteria an opportunity to attack the nerves and blood vessels (pulp) inside the tooth.
If the affected nerve is not treated, the bone around the tooth can be destroyed. If the root of the tooth dies, the toothache may stop, but that does not mean that the infection has gone away. The infection continues to spread and destroy tissue.
How to recognize an abscessed tooth
There are several telltale symptoms of an abscessed tooth:
- A gnawing or throbbing pain in the tooth
- A sharp or shooting pain in the tooth
- Chewing causes pain
- Tooth is sensitive to hot or cold fluids or food
- A bitter taste in the mouth
- Bad breath
- Red and swollen gums
- Swollen area of the upper or lower jaw
- Swollen glands in the neck
- Open draining sore on the side of the gum
Early treatment can rescue your tooth and you
In its early stage, an abscessed tooth can be successfully treated with antibiotics, warm salt-water rinses and over-the-counter pain relievers. However, if the infection has damaged the tooth’s pulp, a root canal may need to be done and a crown placed over the tooth. The abscess may need to be surgically drained. Extracting the tooth may be necessary as well. X-rays can help determine the extent of the infection’s damage to surrounding bone.