Skip to main content

ORIGINAL RESEARCH article

Front. Bioeng. Biotechnol.
Sec. Biomaterials
Volume 12 - 2024 | doi: 10.3389/fbioe.2024.1507525
This article is part of the Research Topic Advanced Technologies for Oral and Craniomaxillofacial Therapy View all articles

The effect of different activation irrigations on intracanal smear layer removal: a vitro study

Provisionally accepted
Lingxiang Wang Lingxiang Wang *Bo Feng Bo Feng Shaojing Shi Shaojing Shi Degang Sun Degang Sun Di Wu Di Wu
  • Qingdao Stomatological Hospital, Qingdao, China

The final, formatted version of the article will be published soon.

    Objective: To compare the effect of syringe irrigation technique, passive ultrasonic activation technique, EDDY activation technique and Er,Cr,YSGG laser activation technique on smear layer removal in root canals in vitro. Methods: Forty mandibular first premolars with single canal were collected from patients in Qingdao Stomatological Hospital affiliated to Qingdao University. After root canal preparation with ProTaper Universal to F3, they were randomly divided into four groups (n=10) according to different activation irrigations for the final washing: syringe irrigation(SI), passive ultrasonic activation(PU), EDDY activation (EDDY) and Er,Cr,YSGG laser activation (YSGG). Finally, all the crowns of them were cut off and the root length was trimmed to 15mm. The roots were split longitudinally and observed with scanning electron microscope (SEM) for assessment of smear layer removal in different parts of the root canal. Results: All groups showed similar effects for cleaning the root canals in the coronal thirds (P>0.05). For cleaning the root canals in the middle thirds, PU group, EDDY group and YSGG group showed similar effects, (P>0.05).They were more effective than SI group (P < 0.05). For cleaning the root canals in the apical thirds, PU group and EDDY group showed similar effects (P>0.05). They were more effective than SI group (P < 0.05). YSGG group was more effective than other groups (P < 0.05). Conclusions: Er,Cr,YSGG laser activation technique can remove smear layer of root canals effectively. The cleaning effect of the passive ultrasonic activation technique, EDDY activation technique is better than that of syringe irrigation technique.

    Keywords: Smear Layer, Ultrasonic technique, ER, Cr, YSGG laser, EDDY activation technique, scanning electron microscope

    Received: 07 Oct 2024; Accepted: 13 Nov 2024.

    Copyright: © 2024 Wang, Feng, Shi, Sun and Wu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Lingxiang Wang, Qingdao Stomatological Hospital, Qingdao, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.