近年来,随着厌氧培养技术的进展,人们愈来愈重视感染根管内厌氧菌的地位和作用。已有研究表明,恒牙感染根管的病原菌是以厌氧菌为主体的混合感染。而乳牙感染根管的病原菌国外也已有研究,并发现厌氧菌占有一定 In recent years, with the progress of anaerobic culture technology, people pay more and more attention to the status and role of anaerobic bacteria in infected root canals. Studies have shown that the root canal infection of permanent teeth is an anaerobic bacteria as the main mixed infection. The root canal infection of primary teeth of the bacteria have also been studied abroad and found that anaerobic bacteria occupy a certain