African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5233


Ecology of pulpal and periapical flora

Hanan Balto
Department of Restorative Dental Science, College of Dentistry, Dental Caries Research Chair, King Saud University, Riyadh, Saudi Arabia.
Email: [email protected]

  •  Accepted: 09 September 2013
  •  Published: 04 October 2013


Inflammatory lesions in the periapical tissues of the teeth are a result of root canal infection following partial or complete breakdown of the pulp. Infected root canals have a complex microbial flora consisting of cocci, rods, spirochaetes, filaments and fungi which may exist as a loose collection in mist canal lumen or as dense aggregates (biofilms) adhered to dentinal walls. The biofilm environment has been found to be advantageous for bacterial living; as it helps the bacteria to survive and multiply, inducing their metabolic products that will lead in the persistence of periapical infection.


Key words: Inflammatory lesions, periapical tissues, root canal infection, bacterial.