{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:39:26Z","timestamp":1760236766941,"version":"build-2065373602"},"reference-count":31,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2021,12,29]],"date-time":"2021-12-29T00:00:00Z","timestamp":1640736000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objectives: Postoperative pain is a common symptom of a flare-up after root canal treatments (RCTs). Insufficient instrumentation, extrusion of irrigation solutions and debris, and the existence of a periapical lesion are the factors affecting postoperative pain after root canal treatments. The aim of this study was to evaluate the postoperative pain and instrumentation time of the single-file reciprocating system and multiple-file Ni\u2013Ti rotary system in children ages 9\u201312 years old. Materials and Methods: Our study was conducted on 51 permanent mandibular molars with the diagnosis of irreversible pulpitis. Patients were randomly assigned into two groups, and RCTs were completed with either the Reciproc Blue or Protaper NEXT file systems. Instrumentation time for each system was noted, and patients were given a pain scale that included a visual analog scale for 6, 24, 48, and 72 h after treatment. Postoperative pain scores and instrumentation times were analyzed statistically with a chi-square test and Student\u2019s t-test. Results: There was no statistically significant difference in postoperative pain between the Reciproc Blue and Protaper NEXT systems at all time intervals. Instrumentation time was significantly shorter in the Reciproc Blue group in comparison with the Protaper NEXT group. Conclusions: Postoperative pain findings following RCT using single-file reciprocating systems were similar to the rotary system group. However, chair time in the reciprocating system group was significantly lower. This provided a comfortable and patient-friendly treatment approach for children, and could enhance their cooperation.<\/jats:p>","DOI":"10.3390\/medicina58010050","type":"journal-article","created":{"date-parts":[[2021,12,29]],"date-time":"2021-12-29T08:12:15Z","timestamp":1640765535000},"page":"50","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Evaluation of Postoperative Pain Following Single-Visit Root Canal Treatment with Rotary and Reciprocal Ni\u2013Ti File Systems in Children"],"prefix":"10.3390","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6346-3801","authenticated-orcid":false,"given":"Alp","family":"Atesci","sequence":"first","affiliation":[{"name":"Independent Researcher, Izmir 35220, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4572-1875","authenticated-orcid":false,"given":"Asl\u0131","family":"Topaloglu-Ak","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry, School of Dentistry, Istanbul Ayd\u0131n University, Istanbul 34295, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ece","family":"Turan","sequence":"additional","affiliation":[{"name":"Independent Researcher, Izmir 35220, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ozant","family":"Oncag","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry, School of Dentistry, Ege University, Izmir 35040, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mehmet","family":"Kaval","sequence":"additional","affiliation":[{"name":"Department of Endodontics, School of Dentistry, Ege University, Izmir 35040, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1111\/j.1365-2591.2007.01316.x","article-title":"The prevalence of postoperative pain and flare-up in single- and multiple-visit endodontic treatment: A systematic review","volume":"41","author":"Sathorn","year":"2008","journal-title":"Int. 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