Root Canal Treatment

RCT

What is Root Canal Treatment

A root canal is a treatment to repair and save a badly damaged or infected tooth. The procedure involves removing the damaged area of the tooth (the pulp), cleaning and disinfecting it and then filling and sealing it. The common causes affecting the pulp are a cracked tooth, a deep cavity, repeated dental treatment to the tooth or trauma. The term “root canal” comes from cleaning of the canals inside the tooth’s root.

What to Expect During a ROOT CANAL
If you think you need a root canal, consult your dentist. There are a number of steps that occur over a few office visits.

  1. X-ray – if a dentist suspects you may need a root canal, he will first take X-rays or examine existing X-rays to show where the decay is located.
  2. Anesthesia – local anesthesia is administered to the affected tooth. Contrary to popular belief, a root canal is no more painful than a filling.
  3. Pulpectomy – an opening is made and the diseased tooth pulp is removed.
  4. Filling – the roots that have been opened (to get rid of the disease pulp) are filled with gutta-percha material and sealed off with cement.

How Root Canal Treatment is Done?

rct before after

The general sequence of a root canal procedure is as follows:

Step 1

Local anesthesia is administered via injections to numb the tooth to be treated and the surrounding tissues. If the pulp in a tooth is acutely inflamed, and therefore very painful, it may take a while to get it numb, but your dentist will not start the treatment until it is.

Step 2

A dental dam — a thin sheet of rubber or vinyl — will be placed over the affected and adjacent teeth. The tooth undergoing treatment protrudes through a hole punched in the dam, isolating it from the rest of the mouth. This allows the root canal treatment to be carried out in a sterile environment free from contamination by bacteria found in saliva or the rest of the mouth.

Step 3

A small access hole is drilled through the biting surface of an affected back tooth or from behind a front tooth, allowing access to the pulp chamber and root canals for treatment.

Step 4

DeepInfectionRoute2Root

The diseased and dead pulp tissue is removed from the tooth with specially designed instruments used to clean out the root canals and pulp chamber. This is not painful; the area is numb and the tissue being removed is either dead or dying. Once the pulp, along with the nerves contained in it, is removed, the tooth itself can no longer feel pain.

Step 5

The canals are disinfected with antiseptic and antibacterial solutions.

Step 6

Inflamed

The canals are then shaped with tiny flexible instruments to allow them to receive root canal fillings and sealers. The canals are washed and cleaned again to remove root canal debris prior to sealing them.

Step 7

Filling

Root canal fillings are selected that will exactly fit into the freshly prepared canals. Usually a rubber-like material called gutta-percha is used to fill the canal space. It is a thermoplastic material (“thermo” – heat; “plastic” – to shape), which literally is heated and then compressed into and against the walls of the root canals to seal them. Together with adhesive cement called a sealer, the gutta-percha fills the prepared canal space. Sealing the canals is critically important to prevent them from becoming reinfected with bacteria.

Step 8

Rebuilding

A temporary or permanent filling material will then be placed to seal the access hole that was made to treat the canals, and the dental dam is removed. If the tooth lacks sufficient structure to hold a restoration (filling) in place, the dentist or endodontist may place a post (either metal or a very strong plastic) in one of the canals inside the tooth to help retain it.

Step 9

After the procedure, an antibiotic may be prescribed to treat or prevent infection. Be sure to follow the instructions of your dentist or endodontist carefully. After-effects of treatment are minimal, generally lasting from a couple of days to about a week. It is normal to have some minor discomfort after treatment including slight soreness that can usually be managed with over-the-counter (aspirin, ibuprofen) medications or prescription (codeine-type) drugs, or a combination of the two.

Step 10

Crown

Your tooth will need a permanent restoration — a filling or a crown — to replace lost tooth structure, and provide a complete seal to the top of the tooth. Your endodontist will send you back to your general dentist to determine which type of restoration is best for you. This step is of particular importance since many studies show that if the filled root canals are recontaminated with bacteria from the mouth, there could be a recurrence of infection around the tooth

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