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-e...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.展开更多
The development of oral orthodontic disciplines of Jinzhou Medical College Department of Oral Zhang Yuxia any subject development and other disciplines are closely related to the development of orthodontics is no exce...The development of oral orthodontic disciplines of Jinzhou Medical College Department of Oral Zhang Yuxia any subject development and other disciplines are closely related to the development of orthodontics is no exception, which can be obtained from its development process prove. Initially used to treat orthodontic patients with precious metals, because of the expensive, very few people acceptable. Later, materials scientists and orthodontists through.展开更多
文摘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.
文摘The development of oral orthodontic disciplines of Jinzhou Medical College Department of Oral Zhang Yuxia any subject development and other disciplines are closely related to the development of orthodontics is no exception, which can be obtained from its development process prove. Initially used to treat orthodontic patients with precious metals, because of the expensive, very few people acceptable. Later, materials scientists and orthodontists through.
