@article { author = {Elsadat, Motaz and Refai, Ashraf and Islam, Taher}, title = {Does The Working Length Change When Using The XP-Endo Shaper File at Different Operating Temperatures?}, journal = {Journal of Dental Materials and Techniques}, volume = {10}, number = {2}, pages = {108-113}, year = {2021}, publisher = {Mashhad University of Medical Sciences}, issn = {2322-4150}, eissn = {2252-0317}, doi = {10.22038/jdmt.2021.56500.1436}, abstract = {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.}, keywords = {Root canal preparation,Rotary files,Working length change,XP-endo shaper}, url = {https://jdmt.mums.ac.ir/article_18158.html}, eprint = {https://jdmt.mums.ac.ir/article_18158_67bc297d4adc705e68ca1cf510eb68c0.pdf} }