Periodontology Dentistry is a branch that studies the tissues of the periodontium (peri = around; odons = tooth) and related diseases. The periodontium consists of 1 - gum 2 - alveolar bone 3 - cementum (tissue covering the tooth root) 4 - periodontal ligament. The periodontology then takes care of all the soft tissues (periodontal ligament and the gum) and hard (cement and alveolar bone tissue) surrounding the tooth and which ensure its stability nell'arcata alveolar (in conditions of health). Periodontics, also takes care of diseases affecting the periodontium, they are generically called periodontal disease or periodontitis, or pyorrhea (historical term still used today in the population). They are periodontitis and gingivitis.

Periodontal disease is an infectious disease multi-site-specific. Namely: 1) infectious: the necessary cause that can never fail are bacteria (plaque), 2) multifactorial longer causes that together can reinforce and exacerbate the effects of infectious component, 3) site-specific: each tooth and every area may be affected differently, serious, moderate, little or nothing, so it is necessary for an accurate diagnosis tooth for a tooth.

Periodontal disease can present as gingivitis or periodontitis, the first results with healing the "restitution ad integrum" of the supporting tissues, the latter always involves healing after an injury irreversible.
Incidence of periodontal disease

It is estimated that at least ten million Italians suffer from these diseases after thirty years of age with periodontal disease is lost "attack" (epithelial attachment, which in fact is not lost, but it moves apically, away from the tooth to the root ) and alveolar bone. These anatomical changes are consequences of periodontal disease lead to two possible clinical manifestations: 1 - gingival recession (gum down that is highlighted with a tooth longest) 2 - pocket periodontal (gum in the correct position, but the bone and the attack have moved apically along the root, thus forming an empty space called periodontal pocket).
Periodontal disease aggressive child

Although this disease can occur in children and is mainly due to a micro-organism: the actinomices actinomicetemcomitans. Other conditions may favor it particularly unfavorable anatomy that facilitate the loss of gum, poor hygiene and a consequent inflammation can aggravate injuries usually heal after appropriate antibiotic treatment and restoration of good practice of oral hygiene.

Taken from Wikipedia