Does The Working Length Change When Using The XP-Endo Shaper File at Different Operating Temperatures?

• Main Authors: Motaz Elsadat, Ashraf Refai, Taher Islam
• Format: Article
• Language: English
• Published: Mashhad University of Medical Sciences 2021-06-01
• Series: Journal of Dental Materials and Techniques
• Subjects: root canal preparation; rotary files; working length change; xp-endo shaper
• Online Access: https://jdmt.mums.ac.ir/article_18158_67bc297d4adc705e68ca1cf510eb68c0.pdf
• ISSN: 2322-4150; 2252-0317

Introduction: This study was directed to evaluate the effect of different operating temperatures on the change in working length when using the XP-endo shaper file. Methods: A total of 20 plastic blocks with16 mm curved canals were used in this study. The working length was adjusted to be 15 mm using a customized Teflon stopper (10mm in length) which was used with all files in the study. The preparation was done using the XP-endo shaper file (FKG, La Chaux-de-Fonds, Switzerland) according to the manufacturer’s instructions. The blocks were divided into 2 groups: Group 1: body temperature, Group 2: room temperature. Pre and post instrumentation imaging of the blocks was done using the stereomicroscopy at 8x. The images were superimposed to create a composite image on which the evaluation of working length change was done. Mann-Whitney U test was used to compare the change in working length in the two groups. Results: There was no statistically significant difference between the two groups (P ≤ 0.05). Conclusions: Within the parameters of this study, although both groups showed an increase in working length when using the XP-endo shaper file, the operating temperature did not have an effect.