PRINCIPLES OF PERIODONTOLOGY: EARLY OBSERVATIONS, EPIDEMIOLOGY AND CLASSIFICATION. REVIEW.

Periodontology has been defined as the scientific study of the periodontium in health and disease. The objective of this overview of principles of periodontology is presentation of current and established concepts. Aspects of the history, classification and epidemiology of the most common periodontal diseases are discussed. People exhibiting periodontal abnormalities, for example impairments of tissue integrity or function, are said to have periodontal diseases. Periodontal diseases are arguably among the most ancient and common infectious diseases affecting humans, leading to permanent destruction of the supporting structures of the dentition and ultimately tooth loss. The new classification is complex and will take time to fully incorporate into patient care globally.