冷冻疗法是利用某种致冷物质产生低温治疗疾病的方法。早在一千多年前即有人用冰块或冷水来退热、消肿、止血等,自六十年代初Cooper 制成液氮冷冻机治疗各种肿瘤,由于较其它致冷源温度降得更低(-196℃),故使冷冻治疗在医学应用上日益广泛。我院于1975年开始用冷冻治疗口腔颌面部各种疾病迄今共226例,现小结如下。 Cryotherapy is the use of a cooling substance to produce low temperature treatment of diseases. As early as more than a thousand years ago, people used ice or cold water to expel fever, swelling, hemostasis and so on. Since the early 1960s, Cooper made liquid nitrogen freezer to treat various tumors. Since the temperature was lower than other cooling sources Lower (-196 ℃), so that frozen treatment is increasingly widespread in medical applications. Our hospital in 1975 began to treat various diseases of oral and maxillofacial so far a total of 226 cases, are summarized as follows.