正常上颌窦的细菌学是一个令人十分感兴趣的问题。以往认为健康上颌窦是无菌的 ,Brook于 1981年首次报告正常上颌窦有厌氧菌、非厌氧菌的存在。不同作者采用不同的方法、标准确认正常上颌窦 ,如病史、临床表现及影像学检查。大多数作者常规采用鼻窦 X线检查确认正常上颌窦。近 Bacteriology of normal maxillary sinus is a very interesting issue. In the past that healthy maxillary sinus is sterile, Brook reported in 1981 for the first time normal anaerobic bacteria in the maxillary sinus, the presence of non-anaerobic bacteria. Different authors use different methods, the standard confirmation of normal maxillary sinus, such as history, clinical manifestations and imaging studies. Most authors routinely use sinus X-rays to confirm normal maxillary sinus. near