{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T22:30:44Z","timestamp":1788388244003,"version":"build-2803163510"},"reference-count":27,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2018,10,5]],"date-time":"2018-10-05T00:00:00Z","timestamp":1538697600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int Endodontic J"],"published-print":{"date-parts":[[2019,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>To evaluate the recovery effect of proanthocyanidin (<jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content>) on microtensile bond strength (\u03bc<jats:styled-content style=\"fixed-case\">TBS<\/jats:styled-content>) to sodium hypochlorite (Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l)\u2010treated dentine.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methodology<\/jats:title><jats:p>Fifty\u2010five freshly extracted third molars with intact dental crowns, no caries or restorations were sectioned to expose a sound middle layer of dentine and were randomly divided into 11 groups. In the blank control group, dentine surfaces were immersed in deionized water for 20\u00a0min. In the negative control group, dental surfaces were immersed in 5.25% Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l for 20\u00a0min. In the other nine experimental groups, after immersion for 20\u00a0min in 5.25% Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l, followed by <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> (5%, 10%, or 15%) treatment for 1, 5\u00a0min or 10\u00a0min. The Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l solution was renewed every 5\u00a0min. Then dentine surfaces were bonded using <jats:styled-content style=\"fixed-case\">SE<\/jats:styled-content> bond. Bonded samples were sectioned into dentine\u2010resin sticks (<jats:italic>n\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>45) for microtensile bond strength testing (<jats:styled-content style=\"fixed-case\">MP<\/jats:styled-content>a). Failure modes were observed and classified into three types with a stereomicroscope. Microtensile bond strength data were analysed using one\u2010way <jats:sc>anova<\/jats:sc>. The confidence interval test was performed to analyse the recovery effect of <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> on bond strength to Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l\u2010treated dentine. The chi\u2010squared test was used to analyse failure mode distribution.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>After use of 5.25% Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l for 20\u00a0min, microtensile bond strength in the negative control group decreased significantly compared with that of the untreated group (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05). After a recovery treatment of 10% <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> for 10\u00a0min or 15% <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> for more than 5\u00a0min, the bond strength was restored to at least 90% of baseline (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05). No recovery effect on bond strength was detected after the application of 5% <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> for 1\u00a0min (<jats:italic>P\u00a0<\/jats:italic>&gt;<jats:italic>\u00a0<\/jats:italic>0.05). Adhesive fracture was found to be the most common failure mode in the Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l\u2010treated group. After the recovery application of <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content>, the proportion of mixed failures increased significantly (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Microtensile bond strength to Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l\u2010treated dentine recovered after the application of either 5% <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> for more than 5\u00a0min or 10% or 15% <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> for more than 1\u00a0min. The application of <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> before an adhesive procedure may immediately restore the compromised bond strength of Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l\u2010treated dentine.<\/jats:p><\/jats:sec>","DOI":"10.1111\/iej.13005","type":"journal-article","created":{"date-parts":[[2018,8,25]],"date-time":"2018-08-25T13:29:31Z","timestamp":1535203771000},"page":"371-376","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["The recovery effect of proanthocyanidin on microtensile bond strength to sodium hypochlorite\u2010treated dentine"],"prefix":"10.1111","volume":"52","author":[{"given":"Y.","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Cariology and Endodontology Peking University School and Hospital of Stomatology Beijing China"},{"name":"Dental Clinic Peking University International Hospital Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Cariology and Endodontology Peking University School and Hospital of Stomatology Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H. 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