Object: To approach the reliability of high-frequency current acting upon the devitalization of dental pulp, the safety and clinical effect for peripheral tissues of root tip.
目的：探讨高频电流对牙髓失活作用的可靠性、对根尖周围组织的安全性及临床疗效。
Object: To approach the reliability of high-frequency current acting upon the devitalization of dental pulp, the safety and clinical effect for peripheral tissues of root tip.
目的：探讨高频电流对牙髓失活作用的可靠性、对根尖周围组织的安全性及临床疗效。
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