Periodontology is the area of dentistry that studies backup structures of teeth, as well as diseases and circumstances that disturb them. Periodontal disease contains a number of diseases of the periodontal tissues that conclusion in attachment loss and destruction of alveolar bone. Periodontal disease is the second most collective cause of tooth loss (second to dental caries). This device, known as the periodontium, has some very important functions. It is complete up of several component structures that work together.