It’s described as the inner layer of the tooth which possesses the nerves and blood vessels in it.
WHY & WHEN IT’S REQUIRED?
It’s recommended when the teeth decay(cavities) and is left untreated, then things can get worse, for the decay progresses and eventually destroys a significant portion of the tooth before reaching the ‘pulp’ of the tooth. Once it reaches the pulp (a soft tissue present in the tooth canal comprising of nerves and blood vessels), it leads to a common dental pain or sensitivity.
Root canal treatment is recommended when the decay reaches up to this layer and involves removal of decay, cleaning and shaping of the canals and filling up of the canals. Subsequently, the procedure is followed by the filling of the tooth and in most cases a crown placement.
The treatment process is a painless procedure, extremely comfortable, and convenient. As a result of this treatment, one can save decayed tooth and when a natural tooth is saved there will be no need of an artificial tooth.
The placement of crown is mandatory in most cases after root-canal therapy. This is because the tooth becomes brittle after root-canal therapy, due to which a lot of tooth structure needs to be removed.
In some teeth that has extensive loss of tooth structure, sometimes post & core treatment is essential to restore the teeth structure. In such a situation, a thin rod like structure is put inside the root for support in the extremely destructed teeth.
There are different types of post available such has metal post, fiber post, cast post etc; reinforcement of the tooth can be successfully done by properly selecting case and post and core technique.