Quelques questions fréquentes au sujet du traitement de canal
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Traitement de canal

Some common questions about root canal treatment


A dentist answer your questions about root canal treatment!

Is it true that root canal treatment hurts a lot?

In the vast majority of cases, no.  It is not uncommon to see people fall asleep during treatment.  The worst pain precedes root canal treatment, the very pain that pushes the patient to consult.

During root canal treatment, local anesthesia makes it possible to work without pain, except in rare cases where inflammation ‘overexcites’ the dental pulp (‘nerve’). But everything is done to reduce the sensitivity as much as possible and it is usually short-lived, until the pulp has been eliminated from the canals.

And after the treatment, the tooth may be moderately sensitive, by itself, or to chewing, for about 48 hours. Analgesics may be prescribed in these cases.

Will I need a crown after the root canal treatment?

This is not always the case. However, what led to root canal treatment has often damaged the tooth, which remains fragile and needs to be protected from fracture as much as possible, and the crown is appropriate. It is not uncommon to meet a patient who fears root canal treatment because he has had one in the past and the tooth is lost afterwards because it has not been sufficiently protected and fractured. Sometimes a restoration with covering of the cusps may be sufficient.

It is also important to know that the most common cause of failure of a root canal treatment is an impairment of the restoration that was done afterwards. A fracture may occur, if the filling is inadequate to protect against a fracture. Or if the restoration is not watertight (allows saliva to infiltrate that can re-infect the canals) because the destruction is too advanced for adequate restoration to be carried out, or because it is only a “patching” restoration. ”

Anyway, this is a discussion that you will have, ideally even before the root canal treatment, with the dentist who will have to restore the tooth.

Is it good for life?

This is desired, but it is not always the case. A root canal treatment, even perfect, may fail as nature has a role to play. The success rate could range from 90% to 98%, depending on the case. Some infections are resistant and recurrence may occur. In addition, as we saw in the previous question, failure may occur following inadequate restoration after root canal treatment. Cases, for example, of pulpitus will have a better success rate than an abscess case where a bone lesion is present.

That doesn’t mean you lose the tooth. If it is restorable, root canal reprocessing may be attempted, and ultimately an apectomy (local surgical correction) if indicated.