What to do if the tooth nerve is necrotic and the teeth turn black

If the dental nerve is necrotic, it will often cause tooth discoloration. At this time, you should go to the hospital for treatment in time, because tooth discoloration not only affects the appearance, but also easily causes adverse effects on other teeth. When going to the dental hospital for treatment, the dental nerve needs to be treated. Root canal treatment can be performed. If you want to achieve beauty, you can consider porcelain braces, which are also effective.

Indications for root canal treatment

1. Pulpitis: The dental pulp becomes inflamed due to bacterial infection. The dental pulp is in a sealed pulp cavity and is generally not infected by bacteria. When the tooth has a hole due to caries and the hole is too deep, external bacteria will invade the pulp cavity and infect the pulp.

2. Apical periodontitis: After the dental pulp is infected by bacteria, the bacteria will invade the alveolar bone through the apical foramen, causing inflammation of the tissues around the root apex. As long as the infected pulp is removed, the apical inflammation will subside.

3. Exposed pulp: When a tooth is broken and the dental nerve is exposed, root canal treatment is generally required.

Treatment steps

Step 1: Root canal preparation

Before root canal preparation, preoperative evaluation of root canal treatment, pulp chamber preparation and working length measurement are required, followed by the root canal preparation stage. There are two methods of root canal preparation, and different preparation methods are used depending on the instrument selected. When doing root canal preparation for endodontic treatment, it is important to emphasize that since the root canal system is very complex, no instrument or preparation method can reach the entire root canal system, so the combination of mechanical preparation and chemical preparation is very important.

Step 2: Root canal disinfection stage

During root canal treatment, experts recommend that teeth with vital pulp or infection limited to the coronal pulp can be treated with a one-time method, while others can be treated with root canal sealing medication.

Step 3: Root canal filling stage

During root canal treatment, when filling the root canal, it is important to grasp the timing of filling. Generally, filling can be performed when there are no subjective symptoms, no obvious percussion pain, no odor in the root canal, no exudation, and no symptoms of acute periodontitis. There is no need to wait until all symptoms disappear, nor does it necessarily have to wait for the fistula to heal completely. Repeated filling can easily cause greater irritation to the periapical region. As for filling methods, the cold gutta-percha lateral pressure method is still the mainstream, while the hot gutta-percha method is the future trend.