{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,20]],"date-time":"2026-06-20T04:50:42Z","timestamp":1781931042141,"version":"3.54.5"},"reference-count":30,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T00:00:00Z","timestamp":1781827200000},"content-version":"vor","delay-in-days":169,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100004484","name":"Tehran University of Medical Sciences and Health Services","doi-asserted-by":"publisher","award":["71903"],"award-info":[{"award-number":["71903"]}],"id":[{"id":"10.13039\/501100004484","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Scientific World Journal"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>During retreatment, complete removal of previous obturation materials is essential, as remnants may compromise adhesion. This study evaluated the effect of four retreatment protocols on the push\u2010out bond strength of RetroMTA (BioMTA, Seoul, Korea), a fast\u2010setting calcium silicate\u2013based material, used as an apical barrier in teeth with open apices that had been previously obturated with gutta\u2010percha and AH26 sealer.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>\n                      Sixty extracted single\u2010rooted human teeth were instrumented and obturated using lateral condensation and then stored in phosphate\u2010buffered saline (PBS) at 37\u00b0C for 4 weeks. Specimens were randomly assigned to four groups (\n                      <jats:italic>n<\/jats:italic>\n                      = 15): mechanical retreatment, mechanical retreatment with passive ultrasonic irrigation (PUI), chloroform\u2010assisted retreatment, and chloroform\u2010assisted retreatment with PUI. After retreatment, the apical 5\u2009mm of each canal was obturated with RetroMTA and stored for another 4 weeks. Push\u2010out bond strength was measured using a universal testing machine. Data were analyzed using two\u2010way ANOVA. The significance level was set at\n                      <jats:italic>\u03b1<\/jats:italic>\n                      = 0.05.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Chloroform use did not significantly affect the push\u2010out bond strength of RetroMTA (\n                      <jats:italic>p<\/jats:italic>\n                      = 0.349). In contrast, PUI significantly increased bond strength regardless of solvent use (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001). No significant interaction was observed between chloroform and PUI.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Within the limitations of this ex vivo study, PUI significantly enhanced the bond strength of RetroMTA to root dentin, whereas chloroform provided no additional benefit.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1155\/tswj\/8891215","type":"journal-article","created":{"date-parts":[[2026,6,20]],"date-time":"2026-06-20T04:08:22Z","timestamp":1781928502000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of Retreatment Protocols on the Push\u2010Out Bond Strength of Hydraulic Calcium Silicate Cement in Open\u2010Apex Teeth"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-5658-5972","authenticated-orcid":false,"given":"Faraz","family":"Seyedforootan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4307-438X","authenticated-orcid":false,"given":"Noushin","family":"Shokouhinejad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0945-516X","authenticated-orcid":false,"given":"Fatemeh","family":"Hamidzadeh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,6,19]]},"reference":[{"key":"e_1_2_10_1_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-9657.2002.00097.x"},{"key":"e_1_2_10_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.2004.00284.x"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2009.09.009"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1747-4477.2003.tb00496.x"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00784-022-04733-1"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1747-4477.2012.00349.x"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2016.02.005"},{"key":"e_1_2_10_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.don.0000145033.15701.2d"},{"key":"e_1_2_10_9_2","doi-asserted-by":"publisher","DOI":"10.4103\/0972-0707.94584"},{"key":"e_1_2_10_10_2","doi-asserted-by":"publisher","DOI":"10.1089\/pho.2015.3937"},{"key":"e_1_2_10_11_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2591.2007.01243.x"},{"key":"e_1_2_10_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2009.12.025"},{"key":"e_1_2_10_13_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12903-020-1044-6"},{"key":"e_1_2_10_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2014.08.018"},{"key":"e_1_2_10_15_2","doi-asserted-by":"publisher","DOI":"10.1111\/iej.12257"},{"key":"e_1_2_10_16_2","first-page":"35","article-title":"Effect of Gutta-Percha Solvents on the Push-Out Bond Strength to Root Dentin of a Syringe-Mixed Resin Sealer and Premixed Bioceramic Sealer","volume":"37","author":"Che Ab Aziz Z. 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