方法：通过动物实验了解冷冻治疗牙本质敏感的机制及优选冷冻剂量。
Methods: the mechanism of cryotherapy for dentinal hypersensitivity and the dose of cryosurgery were studied in guinea pigs.
方法：通过动物实验了解冷冻治疗牙本质敏感的机制及优选冷冻剂量。
Methods: the mechanism of cryotherapy for dentinal hypersensitivity and the dose of cryosurgery were studied in guinea pigs.
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