Periodontitis: A Dynamic Pathology

Periodontitis Manifests at Both the Microbial and
Clinical Levels1,2

chronic periodontitis disease tooth bacteria

Periodontitis is a chronic bacterial infection caused by microbial plaque, also called dental biofilm, that grows on the tooth’s surface and below the gingival margin. 

When dental biofilm irritates the gingiva, it breaks down the tissue and bone supporting the dentition. Left untreated, periodontitis, an oral infection, may ultimately increase periodontal pocket depth.3 This may also lead to tissue damage, gingival recession, and the spread of infection to healthy sites.3   

This subgingival biofilm is an epithelial cell-associated biofilm, lining the epithelial surface of the pocket. This dental biofilm contains primarily spirochetes and gram-negative bacterial species. Three of the most prominent species are:2

  • P. gingivalis
  • T. denticola
  • T. forsythia

These species belong to a class known as red complex bacteria (RCB) and have been detected in large numbers in periodontal pockets, and in epithelial cell-associated biofilms.2


Periodontal Disease Progression


  • Begins with an unhealthy balance of bacteria within the dental biofilm2
  • May lead to an oral infection which may ultimately contribute to increased pocket depth3
  • May also spread to healthy sites3
  • May lead to a range of risks and consequences if left untreated

Find out how adding ARESTIN® at the time of SRP may improve clinical outcomes for periodontal patients.

REFERENCES: 1. Socransky SS, Haffajee AD, Cugini MA, Smith C, Kent RL. Microbial complexes in subgingival plaque. J Clin Periodontol. 1998;25:134-144. 2. Socransky SS, Haffajee AD. Dental biofilms: difficult therapeutic targets. Periodontol 2000. 2002;28:12-55. 3. Page RC. Periodontal diseases: a new paradigm. J Dent Educ. 1998;62(10):812-821. 4. ARESTIN® (minocycline hydrochloride) Microspheres, 1 mg. Prescribing Information. Horsham, PA: OraPharma, Inc.; 2011.

ARESTIN® is active against microorganisms associated with periodontal disease.4