Postoperative pain after the application of two different irrigation devices in a prospective randomized clinical trial

By Gondim E, Setzer F, Dos Carmo C, Kim S

Date: 01/2010
Journal: JOE


To compare post op pain with conventional irrigation vs EndoVac


Single operator (endodontist) in private practice. Duration: 25 months. Effort made to standardize clinical endodontic procedure as much as possible. Same volume of irrigant used for both groups – 2.5% NaOCl, 17% EDTA. Patient given eight 200mg ibuprofen tablets to take for pain prn.

Evaluation criteria:

(1) Patient questionnaire for pain evaluation – Borg scale 1-10

(2) Frequency and quantity of analgesic use

Data collected for times points at 4, 24, 48 h after tx


1.Significantly less overall pain associated with EV group.

2.Significantly less analgesic consumption between 0-4 h in the EV group. No statistically significant difference in analgesic consumption at 24 or 48 h.

Clinical Significance:

1.Reasons for post op pain can be mechanical, chemical, or microbial. Study tried to minimize other confounding variables with inclusion criteria.

2.EndoVac shown to decrease post-op pain vs conventional irrigation.