There are various indications for endodontic (root canal) treatment. This procedure treats inflamed or infected dental pulp – the living tissue inside the tooth. When the pulp is irreversibly affected, root canal treatment becomes the only way to preserve the tooth.
The pulp is located in the centre of the tooth and plays an important role in its nutrition and sensory function. When caries, trauma, or deep tooth preparation compromise the tooth’s protective layers, bacteria can reach the pulp and cause inflammation. In early stages, this may present as sensitivity to cold or heat, pain on biting, or spontaneous pain. In some cases, however, the process develops without symptoms. In that case, it is only detected later, when the surrounding bone has already been affected.
Modern dentistry aims to preserve vital teeth whenever possible. That means to avoid root canal treatment when biological or conservative alternatives are available. Therefore, the decision is always made individually following a clinical and radiographic examination.
How long does root canal treatment take?
In most cases, root canal treatment is completed in one to a few visits. The duration depends on tooth anatomy, the severity of infection, and whether it is a primary treatment or a retreatment case. In more complex situations, referral to a specialist endodontist may be necessary, as they have additional expertise and equipment for difficult canals and retreatment procedures.
When is root canal treatment NOT necessary?
It is important to understand that not every tooth with pain requires root canal treatment. In early stages, it may be possible to preserve the vitality of the pulp using biological approaches. Root canal treatment is also not automatically required before placing a crown or bridge if the tooth is clinically healthy and vital.
In some cases, alternative approaches allow the preservation of a living pulp, particularly in early inflammation or superficial carious lesions. Each case must be assessed individually, as incorrect indication may lead to unnecessary removal of healthy tissue.
Wisdom teeth are also assessed individually. Due to their complex anatomy and less predictable long-term prognosis, extraction may in some cases be a more reliable and predictable option.
How is a tooth restored after root canal treatment?
After endodontic treatment is completed, the tooth loses its vital pulp and becomes more brittle over time. Therefore, proper restoration is essential. Depending on the amount of remaining tooth structure, this may involve a simple filling, a build-up with a post and composite material, or the fabrication of a crown for increased strength and long-term protection.