A root canal is a dental procedure to remove dead or dying nerve tissue and bacteria from inside a tooth.
A dentist will use a needle to place numbing medicine (anesthetic) around the bad tooth. You may feel a slight prick when the needle is being inserted.
Next, your dentist uses a tiny drill to remove the top part of your tooth and expose the pulp. Pulp is made up of nerves, blood vessels, and connective tissue. It is found inside the tooth and runs to the jaw bone. Pulp supplies blood to a tooth and allows you to feel sensations such as temperature.
The infected pulp is removed with special tools called files. The canals (tiny pathways inside the tooth) are cleaned. Medicines may be placed into the area to make sure all the germs are gone and prevent further infection.
The cleaned tooth area is sealed with a soft, temporary material. Once the tooth is filled, a permanent crown may ...
Root canal therapy consists of removal of the pulp tissue contained within the tubular root canals, and sealing them with an inert material to eliminate bacterial infection. Degeneration of the dental nerve is the primary reason for root canal treatment. It is most frequently caused by untreated bacterial decay that destroys the enamel and dentin and infects the pulp tissue. A sharp blow to the tooth can also precipitate nerve failure, sometimes years after the initial trauma. Nerves can degenerate long after teeth have been filled or capped, especially if the original decay was deep. Infection in a deep periodontal (pyorrhea) pocket may extend to the nerve, requiring a combination of endodontic and periodontic therapy to save the tooth. Nerve degeneration might also be due to poor dental treatment. Root canal therapy is sometimes necessary to eliminate hypersensitivity due to extreme attrition that has worn away one-third to one-half of the tooth's crown. For example, if a front toot...
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