Clinical selection of the principles of root canal disinfectants

During root canal therapy, according to medical requirements, root canal root canal disinfection must be sterile, therefore, to achieve the medical requirements, we must also rely on the help of drugs, now commonly used in clinical root canal disinfectants are: formocresol (FC), camphor chloro phenol, camphor, phenol, phenol resin between acetate and antibiotics.

  

1. Formocresol: also known as formaldehyde three cresol, referred to as FC. Buchan in 1905 by foreign scholars in the first clinical application. The drug began root canal disinfection, the world has been commonly used disinfectants. Formocresol has dental equipment a strong bactericidal, to rot, deodorizing effect, strong permeability, continues for a long time, the anti-inflammatory and infected root canals have a good residual effect of the fixed marrow. It is noteworthy that this root canal disinfection drugs can cause periapical tissue irritation symptoms. Therefore, periapical have knocked pain of the teeth can not be used, so as not to increase the apical irritation. Periapical without percussion pain of teeth is applicable; also pull cord under local anesthesia for root canal sealing drugs.

2. Camphor-Chlorophenol: The sterilization, penetration strong, corrosive and toxic. The role of heat and light stability. Exposure to pulp, the pulp tissue can cause extensive necrosis, the effect is better than traditional camphor phenol; also kill the bacteria, the disinfection is widely used in clinical medicine.

3. Camphor phenol: phenol irritation than a simple drug for The three best orthodontic age pulp pain and root canal disinfection. Clinically used for root canal without secretions Bingya, have also used periapical irritation root canal disinfection.

4. Asked phenol acetate resin: the apical tissues irritation of the pulp has analgesic effect.

5. Antibiotics: Available tetracycline, erythromycin, gentamicin, and iodoform, as well as the role of Chinese medicine with antibacterial modulation into paste for root canal disinfection.