Postoperative pain after different irrigation activation techniques: a randomized, clinical trial
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ORIGINAL ARTICLE
Postoperative pain after different irrigation activation techniques: a randomized, clinical trial Mustafa Gündoğar1 · Güzide Pelin Sezgin2 · Sema Sönmez Kaplan2 · Hande Özyürek3 · Gülşah Uslu4 · Taha Özyürek5 Received: 24 April 2020 / Accepted: 3 September 2020 © The Society of The Nippon Dental University 2020
Abstract The aim of this study was to assess the effectiveness of irrigation activation techniques on postoperative pain (PP) in mandibular premolar teeth with irreversible pulpitis after single-visit endodontic treatment. A total of 160 patients with symptomatic irreversible pulpitis were included in this prospective randomized clinical study. Four different activation methods were used in mandibular premolar teeth. In group 1, teeth were irrigated with side-port endodontic needles (NI) without any agitation; in groups 2 and 3, sonic activation was performed using EDDY and EndoActivator (EA), respectively; and in group 4, passive ultrasonic irrigation (PUI) was used. Patients’ analgesic intake—as well as pain intensity during and after treatment—were recorded at 8, 24, 48 h and 7 days. The data relating to age, sex and analgesic intake was evaluated using the Chi-square test and the preoperative pain and PP intensity at different time intervals was evaluated with the Kruskal– Wallis test at a 5% significance level. Highest PP was recorded at 8 h, pain intensity decreased in all groups by the time. Pain in the NI group was found higher than that of EDDY group at 24 h (P 0.05). No statistically difference was found among the groups with regard to analgesic intake (P > 0.05). Although there were slight differences in PP levels between the groups at 24 h, pain levels decreased in all groups after 24 h. Activation of the irrigation solution did not make any difference in terms of PP after 24 h. Keywords Analgesic intake · EDDY · EndoActivator · Passive ultrasonic irrigation · Postoperative pain
Introduction Postoperative pain (PP) is defined as the displeasing condition frequently experienced after root canal treatments, and its occurrence was noted to vary between 3 and 58% [1]. This severe pain is observed in up to 12% of the patients within 24–48 h after the endodontic treatment procedure * Gülşah Uslu [email protected] 1
Faculty of Dentistry, Department of Endodontics, Medipol University, İstanbul, Turkey
2
Faculty of Dentistry, Department of Endodontics, Biruni University, İstanbul, Turkey
3
Faculty of Dentistry, Department of Pedodontics, Kocaeli University, Kocaeli, Turkey
4
Faculty of Dentistry, Department of Endodontics, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
5
Faculty of Dentistry, Department of Endodontics, Istanbul Medeniyet, İstanbul, Turkey
[2]. Many mechanical, chemical and/or microbial factors related to the endodontic treatment have been identified as possible causes of PP. The irrigation process plays a key role in cleaning while eliminating microorganisms and their remains in the difficult areas of the root canal system that the
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