Journal of
Dentistry and Oral Hygiene

  • Abbreviation: J. Dent. Oral Hyg.
  • Language: English
  • ISSN: 2141-2472
  • DOI: 10.5897/JDOH
  • Start Year: 2009
  • Published Articles: 137

Case Report

Anatomy of the periodontium: A biological basis for radiographic evaluation of periradicular pathology

I. U. Madukwe
  • I. U. Madukwe
  • Department of Oral Surgery and Pathology, Faculty of Dentistry, College of Medical Sciences, University of Benin, Edo State, Nigeria.
  • Google Scholar

  •  Received: 02 June 2014
  •  Accepted: 08 October 2014
  •  Published: 30 November 2014



The periodontium surrounds and supports the teeth and consists of four major components; gingiva, periodontal ligaments, cementum/dentin, and alveolar bone/lamina dura, with collective function of keeping the tooth in position despite varying changes and responses during mastication. A near-normal radiograph of periradicular tissues was used as the basis for evaluation of some common periradicular radiographic pathologies. Apical periodontitis was 70 (58.33%), alveolar abscess 32 (26.66%), and apical granulomas 15 (12.50%). A background anatomy of the periodontium is advocated as a precondition for accurate evaluation of periradicular pathologies.


Key words: Periodontium, periradicular, pathology.