Objective To evaluate the clinical efficacy of ultrasonic irrigation in re-treatment the failure in endodontic treatment.
目的探讨超声冲洗对根管治疗失败再治疗临床疗效的作用。
Conclusion ventricular re synchronization therapy is an effective new method for the treatment of congestive heart failure with abnormal inter ventricular conduction.
结论心室再同步治疗是治疗存在室间传导异常的充血性心衰的有效的新方法。
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