|RCT was done and failed
|The dark area around the roots is infection
|10 weeks after retreatment was done
|Notice bone regeneration around roots
How is Root Canal Treated?
on the symptoms and the stage of the disease, root canal treatment may take one or more visits. The objective of RCT is to
clean all the infected tissue out of the canals of the tooth and seal them with special insoluble material- gutta-percha.
First doctor will anesthetize the patient with anesthetic solution. After patient is numb, doctor will remove the decay and
“open” the tooth to gain access to the nerve. Nerve could be live or already dead depending on the stage of pulp
disease. If the nerve is "dead" - non-vital - the infection already can spread to the periapical tissue, and lead
to the pulp abscess. After the crown part of the nerve removed, doctor using special files will clean the inside of
canals, widen them and shape them. During the instrumentation, the inside of the canals will be washed (irrigated) with antiseptic
solutions. Then canals will be dried with special paper points and sealed with gutta-percha. Gutta-percha has to fill the
whole length of the canal up to the apex. Usually doctor will file tooth slightly down, to keep it out of occlusion to prevent
pain and place temporary filling. It is very strongly recommended to restore any endodontically treated tooth with post and
core and the crown.
In the last few years new technologies and approaches allow dentists to perform root canal treatment
in much faster and in more efficient way. The use of rotary instruments for the instrumentation faze of the root canal treatment,
can cut treatment time in half or even more. With rotary instruments dentist is able to shape the canal exactly to match the
guttapercha, thus providing much better seal of the canal, insuring better results of root canal treatment.
root canal treatment procedure is complete, it is normal to expirence some and discomfort especially while biting on the tooth.
If it happenes the most discomfort will happen on 3rd or 4th day. one of the reasons of this complication
attributed to the pressure tooth receives during the instrumentation faze of root canal treatment. This pressure is significantly
reduced by the correct use of rotary instruments, thus reducing post root canal treatment pain to minimum.
Re-treatment Do Root Canals always work?
Unfortunately not. The success rate for the root canal treatment according to different studies is 92-96%. Sometimes
root canal failures can be attributed to poorly sealed canals, but some times x-ray shows perfectly sealed canal and the periapical
infection is still there. What are the options if endodontically treated tooth has the infection? There are few procedures,
which could be done to save the tooth.The most conservative one would be a Root Canal Re-Treatment procedure. During this procedure, the doctor will remove
any restorations the tooth may have to gain access to the pulp chamber, remove all old filling material from the canals, and
do the root canal treatment from scratch as described before. If successful, the periapical infection seen on the x-rays will
start to disappear. The principle is to eliminate the cause, and the immune system does the rest. The images of x-ray show
huge infection around the roots of previously endodontically treated tooth almost disappear in ten weeks after procedure was
done. It can take 6 month before bone fully restores after the treatment.