Crown after a root canal treatment


If only a root canal treatment helps to preserve a natural tooth and to silence the pain, the question arises as to what happens with the drilled tooth afterwards.

Sometimes the statics of the tooth is so weakened by the root canal treatment itself or by extensive caries or a fracture of the hard tooth substance that it is not enough to cover it with a filling.

Since the teeth are exposed to heavy loads, a further prosthetic restoration in the sense of a crown is often necessary in order to give the tooth the required stability.

Also read more on the topic : Root canal treatment

The root canal treatment

It is often unclear what exactly happens during root canal treatment and how the tooth can be saved. Due to carious changes bacteria continued to work their way through the tooth. Starting with Enamel, they are now in the pulp arrives, the supply center of the tooth. The one triggered there inflammation causes great pain as the inflamed tissue presses on the nerve in the canal and this is transmitted to the brain. At a Root canal treatment becomes a hole in the tooth drilledto let the dentist die Root canals with special Root files can hollow out. He away the inflamed tissues, Blood vessels and the Nerve tissue. The tooth is then to be regarded as dead, as it can no longer be supplied with nutrients. Various follow Douches, With Chlorhexidine, Hydrogen peroxide and Sodium hypochlorite, What disinfectant and anti-inflammatory works. This should kill all bacteria so that no new inflammation can occur. Then a filling material, Gutta-percha, filled into the root canal, which seals it tightly. The natural tooth is no longer alive, but could be preserved, which is an advantage from an aesthetic and functional point of view.

Need for a crown

A crown is not necessary after every root canal treatment. It is assumed, however, that the no longer existing supply of the tooth and the continued constant stress, the risk of tooth breakage is very high. Since he is no longer cared for, he will brittle and loses strength. With great forces, such as those occurring when chewing, it can break and would have to be replaced. Teeth that are no longer supplied with nerve fibers become in the course of the Chewing process stronger burdened, i.e. those that are still alive and contain nerves, so that the Risk of breakage is increased. Furthermore are vital teeth more susceptible to bacteria than vital teeth. To that Breaking of the porous tooth prevent, can a Crown be made. It can also be that the Dental crown by Caries or one accident is damaged and no longer meets the functional and / or aesthetic requirements, so that a crown is also necessary. The Crown, however, is not carried out directly, but only takes place after a certain time after the treatment. Usually after 6 months. The timing and necessity of crowning are at the discretion of the dentist. The new tooth crown then increases the Stability of the tooth.

Root canal treatment after crowning

In some cases it can also happen that a tooth has to be prepared very heavily to create a tooth crown esthetic and to be able to place it functionally suitable on the tooth. The tooth is still alive and not treated with the root. Due to the high amount of hard tooth substance being removed, the pulp is almost reached or is already exposed. Now it is no longer possible to simply place the tooth crown on the tooth, as the risk is too great of having to remove it only a short time later, as bacteria could easily penetrate the pulp and cause inflammation. As a precaution away the pulp to avoid this complication.
This method should of course be avoided as part of the previous dental treatment just to be used when the circumstances do not allow otherwise. Before this step, there is also the option of a Capping and give the tooth the chance Tertiary dentist to build. This does not work in every case.

Drill out the crown

A root canal treatment

If you already have a tooth crown that has been permanently attached, you can of course also get one with such a tooth Inflammation deep inside form. If you want to perform a root canal treatment in such a case, there is either the possibility that you can drills into the crown and through this tries to find the channels and treat them. However, this is not very easy, since the canals are difficult to localize and optimal filling cannot be guaranteed. The resulting hole is then closed again with a filling.
Alternatively, you can try the Remove the crown beforehandto be able to receive them. By the Cement However, it sits very firmly on the tooth and cannot be easily removed again, so that the third option is to remove it by drilling it open in order to have unrestricted access to the tooth. However, the crown would be lost and would have to be replaced. Which method is used should be discussed with the treating dentist, as he can assess the individual situation and find the best option.


The Pain before and after a root canal treatment can be very uncomfortable. Before treatment, however, they are very strong and affect everyday life. After the root canal treatment, pain occurs as a result of the cure on, so they are completely normal and not a matter of concern. Only when they get stronger and do not go away on their own is it advisable to ask the dentist for advice, as it is again one inflammation may have formed so that the filling can be revised got to.

Read more here: Pain under a crown

Also one already root canal treated tooth with crown can cause pain, the cause usually being inflammation in the area of ​​the root tips. In this case, a new root canal treatment (revision) or a Apical resection in question.

Read more on the topic: Root tip resection

If the root-treated tooth is to be crowned, there is hardly any further pain, since the removal of the supplying vessels and nerves means that it is no longer a living tooth and stimuli can no longer be passed on. The tooth can be prepared to receive a crown and then provided with it. Of course, pain can reappear when it occurs again Bacteria in the canal or if tissue surrounded during treatment, such as Gums, get hurt.

Also read more on the topic : Root canal pain


In addition to the costs for the root canal treatment (€ 200-800), if they are not covered by health insurance, there may be additional costs for a crown. On Crown types the following are available:

  • a Metal mantle crown (Precious metal / base metal),
  • a Full ceramic crown,
  • a Metal crown With Ceramics blinded and
  • a pin-anchored crown.

in the Anterior region standard care is one Metal crownthat then with Ceramics aon the vestibular side (which lies towards the cheek and lips) is blinded. Ceramic has the advantage that it is because of its color that natural color very similar to teeth and with different coatings that can be adapted to the individual tooth color of the patient. But if you want one complete ceramic crown, without a metal frame, they have to Extra costs private be worn.

in the Posterior regionas soon as it is no longer visible, it is Standard supply a complete crown metalthat is not blinded. If you want a veneer, just like an all-ceramic crown, Private to pay. With standard care, the Health insurance also just a share and not the complete supply. If a bonus booklet is kept, the percentage taken over by the health insurance company increases by up to 30%. On average, with a full metal crown made of non-precious metal on a molar, you can pay approx. 120-130€ calculate. If you want to completely veneer the crown, costs of approx. 400€ To approach.

It is therefore important to ask the dentist in detail beforehand and to discuss everything in order to avoid unpleasant surprises after a treatment. The crown can either be prepared directly on the tooth, but this requires that there is still enough hard tooth substance, or it can be anchored with the help of a pin that is inserted into the root canal.

Also read more on the topic : Root canal treatment costs

Crown or filling after a root canal treatment?

As soon as a tooth has been treated with a root canal, this tooth is no longer vital. This means that it is no longer supplied by nerves or blood vessels. In most cases, it is recommended to support the tooth from the inside with a fiberglass pin or a screw and to crown it with a crown from the outside. The advantage of this is the good stability and durability. The disadvantage is the inadequate aesthetics of a shiny gold metal crown. It is therefore most suitable for the posterior region. In this case, in the anterior region, you should think about ceramic that can be designed in a tooth color.

An alternative is a filling with which the root-treated tooth can be rebuilt. However, this is only carried out in exceptional cases. Another condition for a filling is that no more than two surfaces of the tooth have to be damaged and consequently rebuilt. Otherwise the construction will be too unstable. This possible instability also represents the greatest disadvantage of a filling. The advantage of fillings is their high aesthetics and the lower price for the patient compared to the metal or ceramic crown.

In general, stabilization by means of a screw or a fiberglass post is the most common and, above all, the most durable method of restoring a tooth that has been treated with root canals.


Teeth that have been treated with root canals not always crowned, but can to stabilization be provided with a crown. This ensures a successful root canal treatment long life of the tooth, both off more functional, as well as from aesthetic point of view. The crown increases the stability, so that the tooth strong chewing forces can intercept and not break. Once the tooth is porous and cracks have appeared, you can only see it extract and a prosthetic restoration to make.