Periapical disease

Overview periapical disease is confined to the apical root, root around the periodontal ligament and alveolar bone tissue such as Tsim diseases. Cause pathogenesis one. The most common infection from the infected pulp disease, periodontal disease, followed by root through the hole, Deputy root canal side and the dentinal tubules and secondary, blood-borne infections are relatively rare. That the modern, sharp weeks of the main disease infection of anaerobic bacteria is mainly of mixed infection, Melanin is Bacteroides acute apicitis with the pathogen. Bacterial toxin is the chronic periodontitis the proinflammatory factor, but also pointed weeks granuloma of the main risk factors. 2. Dental trauma suffered external, such as strikes, collisions, falls, can be addressed to the dental hard tissue, Periodontal and Tsim tissue injury. Biting hard objects, such as rice bite the sand, Walnut bite, bite-cap, occlusal trauma may lead to a sharp Week damage. 3. Zhou pointed tumor spread to damage tumor cancer, lung cancer and breast cancer metastasis, jaw sarcoma, myeloma and ameloblastoma. 4. Odontogenic factors pulp and root canal medication overdose, endodontic instruments piercing the apical, orthodontic forced improper, rapid separation teeth, Extraction inadvertent injury, and other adjacent teeth can cause injury Tsim weeks.