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Randomized Controlled Trial
. 2020 Aug;46(8):1017-1022.
doi: 10.1016/j.joen.2020.04.004. Epub 2020 Jun 14.

Postoperative Pain after Treatment Using the GentleWave System: A Randomized Controlled Trial

Daryl Grigsby Jr  1 , Ronald Ordinola-Zapata  2 , Scott B McClanahan  2 , Alex Fok  3
Affiliations
Randomized Controlled Trial

Postoperative Pain after Treatment Using the GentleWave System: A Randomized Controlled Trial

Daryl Grigsby Jr et al. J Endod. 2020 Aug.

Abstract

Introduction: Cleaning and shaping are necessary to allow for the delivery of irrigants and medicaments to the apical third of the canal. Standard treatment irrigation generally uses a conventional needle and some frequency of sonic activation. The GentleWave System (GWS; Sonendo, Inc, Laguna Hills, CA) combines irrigant delivery with multisonic activation. This randomized clinical trial aimed to determine if the GWS significantly decreases the incidence and intensity of postoperative pain.

Methods: Patients used a numeric rating scale to record their pain level at the 6-hour time point before treatment. All participants were randomly divided into 2 groups and were blind to the treatment they received. The standard (control) group received endodontic treatment with conventional side-vented needle irrigation and ultrasonic activation. The second group received treatment with the GWS. Following treatment, patients used a numeric rating scale to record their pain level at 6, 24, 72, and 168 hours.

Results: In the standard treatment group, 72.2% of patients experienced at least 1 occurrence of postoperative pain, whereas in the GWS group, 83.3% of patients experienced at least 1 occurrence of postoperative pain. The highest pain intensity level for both treatments occurred at the 6-hour posttreatment time point. All pain decreased with time after the 6-hour posttreatment time point (P < 1.237e-7).

Conclusions: There was no significant difference in the incidence or intensity of postoperative pain after either treatment group. However, both groups reported a statistically significant decrease in pain with time.

Keywords: Endodontics; GentleWave; incidence; intensity, irrigation; postoperative pain.

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Figures

Figure 1:
Figure 1:
Pain intensity scores before and after treatment
See this image and copyright information in PMC

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