What causes complications from root canal therapy?
Dentists are faced with a variety of complex clinical situations at every stage of root canal therapy. Individual differences in patients may lead to complications. Complications cause great pain to the patient and even lead to failure of the treatment. In the event of an accident, effective measures should be taken immediately and aggressively to remedy the situation and minimize the damage.
Acute inflammatory response
A small number of patients experience local swelling, bite pain, and spontaneous pain during the root canal procedure or after the filling procedure. The dentistry community believes that acute inflammation occurs in about 10% of cases and is caused by the dentist’s failure to properly measure the length of the root canal. When the dentist performs root canal preparation, the dentist pushes the infected material from the root canal to the gums where the gums become infected.
Separation of instruments and root canals.
Instrument separation within the root canal is one of the most common causes of root canal obstruction, with an incidence of 2.09%, due to multiple use of instrument metal, corrosion damage from disinfectant, and improper handling by the dentist. Therefore, dentists should perform x-rays to understand the shape of the root canal prior to root canal preparation. In patients with a large curvature of the root canal, the dentist should be vigilant and carefully inspect the instruments before and after the operation, and instruments that are separated in the root canal can be removed by apical surgery. The dentist should be more disinfected. Patients should be rechecked regularly.
Perforation of the pulp chamber or root canal
Root canal perforations are more likely to occur in narrower portions of the pulp cavity, such as where the root canal is bent. If the perforation of the tooth is small, it can be repaired directly with filling material after adequate hemostasis. If the perforation of the tooth is large, the dentist may consider root canal surgery.
Instruments falling into the respiratory and digestive tract
Such complications are extremely rare but extremely damaging and dentists should avoid such incidents whenever possible. Nowadays, when dentists treat, the procedure is performed under a rubber barrier, so such incidents hardly ever occur.
The teeth are less resistant to fracture after root canal treatment, and the patient is protected by a crown.