随着免疫学的发展,人们对牙周炎的发病机理有了新的认识。目前认为,人类的牙周炎是由菌斑作为抗原引起宿主一系列免疫反应的结果。大量的临床资料研究表明,牙周炎时,不仅在牙周组织内,而且在唾液中可查出免疫球蛋白(Ig)及补体等体液免疫成分。因免疫学方法的研究特异性高,所以,研究宿主的免疫状态对牙周炎的病 With the development of immunology, people have a new understanding of the pathogenesis of periodontitis. It is currently believed that human periodontitis is the result of a series of host immune responses caused by plaque as an antigen. A large number of clinical data studies show that, in periodontitis, not only in the periodontal tissue, but also in saliva can be found immunoglobulin (Ig) and complement and other humoral immune components. Due to the high specificity of research on immunological methods, the study of the immune status of the host on the pathogenesis of periodontitis