![shutterstock_17046487](https://www.nationalelfservice.net/cms/wp-content/uploads/2013/06/shutterstock_17046487-150x150.jpg)
This review of whether ultrasonic irrigation results in less postoperative root canal treatment pain than conventional irrigation included 6 RCTs. The suggests less pain with ultrasonic irrigation for the first 48 hours but no difference at 72 hours.
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