Abstract

Periodontal disease is among the most prevalent oral diseases worldwide. There is a tendency for the disease to increase in severity as people age. It is a unique clinical entity, Many of unique features of periodontists are derived from the anatomy of periodontium. Plaque bacteria produce a number of metabolic waste products that contribute directly to tissue damage many of species that are considered in periodontal pathogenies may simply reside in deep pocket because the pocket is favorable environment