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液氮冷冻治疗法自七十年代以来在我国各地医院已先后用于临床。我科自1976年开始采用液氮冷冻口腔颌面部各种肿瘤,共治疗病人1006例,达1896人次一(表1)。
Liquid nitrogen cryotherapy has been used clinically in hospitals throughout China since the 1970s. Since 1976, our department has used liquid nitrogen to freeze various types of tumors in the oral and maxillofacial regions and treated a total of 1,006 patients with 1896 persons (Table 1).