Actualización en microbiología endodóntica

  1. Pérez Alfayate, Ruth
  2. Díaz Flores García, Victor
  3. Valencia de Pablo, Oliver
  4. Estévez Luaña, Roberto
  5. Cisneros Cabello, Rafael
  6. Algar Pinilla, Juan
Científica dental: Revista científica de formación continuada

ISSN: 1697-6398 1697-641X

Year of publication: 2013

Volume: 10

Issue: 1

Pages: 27-39

Type: Article

More publications in: Científica dental: Revista científica de formación continuada


Microbiological agents are essential in the progression and perpetuation of periradicular inflammatory pathologies. Within these, bacteria constitute the most prevalent flora. For a canal to become infected, the pulp must be necrotic and the microorganisms must adhere to the tissues and multiply in sufficient quantity, with the interaction being important, therefore, between the host and the infectious dose. The specific associations that are implied in the pathogenesis of the periradicular disease are still unknown, but it is accepted that the most frequently isolated species should have a greater contribution in the degree of pathogenicity. The different forms of periradicular disease may be classified as different microbial aetiologies. The types of endodontic infections (primary, secondary and persistent) are associated with different clinical conditions. Extraradicular infections can be classified as any of the previous ones and are gaining importance, because of the resistance that they present to the treatment due to the existence of biofilms. Enterococcus faecalis has been considered one of the principal aetiological factors in the failure of the endodontic treatment, but there is still no clear evidence on what microorganisms provoke it. Many microbiological techniques have been used for the evaluation of the microbiota of the radicular canal. In recent years the PCR amplification techniques have obtained greater sensitivity and specificity when compared with cultures. However, there are still disadvantages.