Dental necrosis is a phenomenon that is scary because of its irreversible nature. What is a mortified tooth? Why does she mortify herself? Is it the same as a devitalized tooth?
What is tooth necrosis?
Dental necrosis is defined as the premature destruction of the cells of the dental tissue, especially the dental pulp. The pulp is the innermost part of the tooth. It includes the nerves, which transmit in particular the painful signals, the blood vessels, which ensure the vascularization of the cells of the tooth and some lymphatic vessels.
When the pulp is necrotic, it is colonized by many bacteria that can migrate to the bone area through the alveolar-dental ligament and cause desmodontitis. If left untreated, it typically causes an apical abscess.
What are the signs of dental necrosis?
Dental necrosis has few clinical signs. Generally, it follows a brief acute episode (such as a toothache) that turns into a chronic episode for several years. This gives the illusion of being cured because, on rare occasions, the pain is no longer felt. The tooth concerned nevertheless changes color with time: it becomes opaque and loses its sensitivity. This new, greyish tinge is due to the degeneration of hemoglobin, contained in the globules, which gives yellow and green by-products as in the case of a hematoma.
What are the causes of tooth necrosis?
It is caused by a physical or chemical trauma or an infection that irreparably damages the dental pulp and causes it to degenerate.
There are two ways to attack the pulp located in the heart of the tooth, either through the apex of the tooth or through the crown. This last path is borrowed very frequently by caries.
The composite fillings are sometimes responsible insidiously dental necrosis, as the impact, even trivial, which follows a fall or RSI (bruxism, occluding defects, and tics involving teeth). Pivoting or crowning can also be responsible.
How to treat dental necrosis?
In the absence of treatment, pulpitis logically causes necrosis of the tooth: the pulp being housed in a non-expandable cavity fed by vessels passing a very narrow passage at the apex, healing is not possible. The infection gradually causes asphyxiation of the tissue due to lack of circulation.
Dental necrosis is treated by devitalizing the tooth, that is by cutting the pulp and preventing the infection from extending beyond the tooth. The tooth has become fragile because of its loss of tissue and it is advisable to put a crown to strengthen it.
For the sake of aesthetics, it is sometimes desired to whiten the tooth become opaque or greenish because of necrosis: it is a rather useless process insofar as the scent will be covered by a crown to prevent it from breaking at the long.