摘要
Gum during the onset of inflammation and swelling, and accompanied by serious plaque accumulation, and extended from the gums to the lower part of the gums. Because of the characteristics of the lower gingival micro-ecological environment, gingival plaque and the emergence of a large number of pathogenic bacteria, resulting in exacerbations of periodontitis and have a tendency to expand, resulting in alveolar bone resorption and periodontal pocket, the formation of various types Of periodontitis.
