How is dental pulp necrosis treated?
Jan 26, 2022
Source: Cainiu Health
Dr. Cui Chengyu
Introduction
Pulpitis: When patients develop pulpitis, it may lead to necrosis of the dental pulp nerve, most commonly caused by bacterial infection. Diagnosis can be confirmed through a combination of clinical examination and X-ray imaging. Once diagnosed, patients should cooperate with their dentist for surgical treatment—such as root canal therapy—and may take oral antibiotics postoperatively (e.g., metronidazole or amoxicillin) to prevent infection.
Teeth appear externally to be extremely sturdy structures. In reality, their strength derives primarily from the outer layer of enamel. Once this enamel is compromised, the tooth becomes highly vulnerable. This is because the inner portion of the tooth is hollow and contains dental pulp and root canals. When bacteria invade the pulp, they can cause necrosis (death) of the dental nerve.
How Is Dental Nerve Necrosis Treated?
Dental nerve necrosis is essentially synonymous with pulp necrosis, most commonly resulting from pulpitis. Typical symptoms include spontaneous, paroxysmal, severe pain. The standard and most effective treatment is root canal therapy, which preserves the affected tooth. This procedure involves mechanically and chemically removing the majority of infected material within the root canal system, followed by root canal filling and coronal sealing to prevent apical periodontitis or promote healing of existing apical periodontal lesions.
Pulp necrosis may result either from pulpitis or from apical periodontitis, and root canal therapy is typically required in both cases—sometimes supplemented with pharmacological treatment, as outlined below.
1. Pulpitis: Pulpitis may lead to dental nerve necrosis, most often due to bacterial infection. Diagnosis is confirmed via clinical examination combined with radiographic (X-ray) imaging. Once diagnosed, patients should undergo appropriate surgical intervention—such as root canal therapy—under the guidance of a dentist. Postoperatively, oral antibiotics (e.g., metronidazole or amoxicillin) may be prescribed to prevent infection.
2. Apical Periodontitis: Apical periodontitis may also cause dental nerve necrosis, frequently developing from untreated dental caries or pre-existing pulp disease. Radiographic evaluation aids in definitive diagnosis. Following confirmation, root canal therapy is generally recommended. If the tooth has no restorative potential, extraction may be necessary. Postoperative oral antibiotics—such as cefixime or cefuroxime—may be prescribed to prevent infection.
After root canal treatment, the remaining tooth structure becomes more brittle and susceptible to fracture under occlusal forces. Therefore, placement of a dental crown is generally advised following root canal therapy to restore structural integrity and function.
We hope the above information is helpful. Wishing you good health and happiness!
