{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T16:02:47Z","timestamp":1783008167741,"version":"3.54.5"},"reference-count":0,"publisher":"Caleo","issue":"3","license":[{"start":{"date-parts":[[2025,4,8]],"date-time":"2025-04-08T00:00:00Z","timestamp":1744070400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur Endod J."],"abstract":"<jats:p>Objective: This study aims to compare the pain perception associated with the needle-free system (Comfort-In\u2122) and the standard needle injection method during root canal treatments in adults.Methods: Forty-four maxillary premolar teeth of the patients that applied to university for treatment and needed endodontic treatment were included in the study. Patients were anesthetized with two different injection methods; needle-free injection and conventional dental injection. In both groups, oxygen saturation and pulse measurements of the patients were recorded at 30-second intervals for 2 minutes before anesthesia and 4 minutes after anesthesia. Pain during the injection and opening of the access cavity preparation was recorded according to Visual Analog Scale (VAS). The data were analyzed according to a statistical program.Results: In this study, a significant difference was found between the groups in terms of pain during anesthesia administration and the access cavity preparation (p0.05). There was no significant difference between the groups in terms of oxygen saturation and pulse values before and after treatment (p&gt;0.05).Conclusion: Needle-free injection makes the treatment more comfortable for patients with injection fear and anxiety, making the procedure easier for the physician and the patient. (EEJ-2024-12-197)<\/jats:p>","DOI":"10.14744\/eej.2025.26566","type":"journal-article","created":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T08:32:58Z","timestamp":1747125178000},"page":"181-187","source":"Crossref","is-referenced-by-count":2,"title":["Anesthetic Efficacy, Injection Pain and Pulse-rate Effect of Needle-free Injection in Pulpal Anesthesia of Maxillary Premolars with Irreversible Pulpitis: Randomised Clinical Study"],"prefix":"10.65717","volume":"10","author":[{"given":"Hatice","family":"Sa\u011flam","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ertu\u011frul","family":"Karata\u015f","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"55248","published-online":{"date-parts":[[2025,4,8]]},"container-title":["European Endodontic Journal"],"original-title":[],"link":[{"URL":"https:\/\/www.eurendodj.com\/index.php\/pub\/article\/download\/338\/338","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.eurendodj.com\/index.php\/pub\/article\/download\/338\/338","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T12:17:13Z","timestamp":1769084233000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.eurendodj.com\/index.php\/pub\/article\/view\/338"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,4,8]]},"references-count":0,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2025,4,8]]}},"URL":"https:\/\/doi.org\/10.14744\/eej.2025.26566","relation":{},"ISSN":["2548-0839"],"issn-type":[{"value":"2548-0839","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,4,8]]}}}