随着微生物学、免疫学研究的很大进展,人们对牙周病病因和发病机理的认识也日益深入。牙周病是牙菌斑的细菌引起的感染过程所致,已是毫无疑问,而且某些细菌确能引起牙周病也已得到证实。然而各型牙周病究竟是哪一种细菌或哪一群细菌所引起,则仍是一个悬而未决的问题。 With the great advances in microbiology and immunology, people have become more aware of the etiology and pathogenesis of periodontal disease. Periodontal disease is caused by the bacterial process of plaque caused by the infection process, there is no doubt that some bacteria can cause periodontal disease has also been confirmed. However, various types of periodontal disease which bacteria or which group of bacteria caused, it is still an open question.