Nivaskumar G A, Ranjini M A, Vedavathi B, Ambili C, Prathiksha Shetty K
Department of Conservative Dentistry and Endodontics, Dayananda Sagar College of Dental Sciences, Bengaluru, Karnataka, India.
J Conserv Dent Endod. 2023 Sep-Oct;26(5):579-583. doi: 10.4103/JCDE.JCDE_14_23. Epub 2023 Sep 16.
To assess and compare the effect of resveratrol pretreatment of root dentin on immediate and delayed pushout bond strength (POBS) of fiber postluted using self-adhesive resin cement.
Postspace was prepared in endodontically treated roots and randomly divided into two groups based on pretreatment rinse before fiber postcementation: Group 1: Distilled water Group 2: 1 mL of 10 mg/mL resveratrol solution for 1 min. Fiber posts were luted using self-adhesive resin cement. Among, two 1 mm slices of the coronal and middle third of root, one slice was subjected to immediate POBS using the universal testing machine and the other slice was subjected to POBS after storing in distilled water for 12 months.
Resveratrol pretreatment showed significantly higher immediate POBS with more mixed failure than distilled water group. There was no significant difference in delayed POBS between the distilled water (mean: 7.07 MPa) and resveratrol pretreated group (mean: 8.20 MPa) with predominantly adhesive failure among them. There was significant difference between immediate and delayed POBS value of both the groups.
Resveratrol pretreatment can be considered to improve bond strength stability of radicular dentin to self-adhesive resin cement.
评估并比较白藜芦醇预处理根管牙本质对使用自粘结树脂水门汀粘结纤维桩的即刻和延迟推出粘结强度（POBS）的影响。
在经过根管治疗的牙根中制备桩道，并根据纤维桩粘结前的预处理冲洗液将其随机分为两组：第1组：蒸馏水；第2组：1 mL 10 mg/mL白藜芦醇溶液，处理1分钟。使用自粘结树脂水门汀粘结纤维桩。在牙根冠部和中部三分之一处各取两片1 mm厚的切片，一片使用万能试验机进行即刻POBS测试，另一片在蒸馏水中储存12个月后进行POBS测试。
与蒸馏水组相比，白藜芦醇预处理组的即刻POBS显著更高，且混合破坏更多。蒸馏水组（平均：7.07 MPa）和白藜芦醇预处理组（平均：8.20 MPa）的延迟POBS无显著差异，两者主要为粘结破坏。两组的即刻和延迟POBS值之间存在显著差异。
可以考虑使用白藜芦醇预处理来提高根管牙本质与自粘结树脂水门汀之间粘结强度的稳定性。
