Role of dentin cross-linking agents in optimizing dentin bond durability
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Date
2017
Journal Title
Journal ISSN
Volume Title
Type
Article
Publisher
Elsevier Ltd
Series Info
International Journal of Adhesion and Adhesives
78
78
Scientific Journal Rankings
Abstract
The present work compared the effects of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC-HCl) and ultraviolet (UV)- or blue light-activated riboflavin cross-linking agents on resindentin micro-tensile bond strength and nanoleakage in bonds produced using a two-step, etch-and-rinse adhesive after three storage intervals (24 h, 6 months, and 12 months). Forty eight extracted human third molars were used to investigate micro-tensile bond strength and interfacial nanoleakage in resin�dentin bonds created using Adper Single Bond 2, with or without pretreatment of acid-etched dentin surfaces. Either 0.5 M EDC-HCl or 1% riboflavin-5-phosphate activated by blue or UV light were used as cross-linking agents. Samples were evaluated after storage for 24 h, 6 months, or 12 months in distilled water at 37 �C. Statistical analyses revealed that 12 months of storage resulted in significant decreases in the bond strength of the controls (p < 0.003), with significant increases in their silver nanoleakage (p < 0.05), compared with the groups subjected to dentin pretreatment with either EDC-HCl or light-activated 1% riboflavin. Despite the significant drop in bond strength after 6 months� storage in all experimental groups compared with the 24-h bond strength (p < 0.05), there was a further non-significant drop in bond strength after 12 months in samples treated with EDC-HCl and UV-activated 1% riboflavin (p > 0.05). Dental collagen cross-linking induced by UV- or blue light-activated 1% riboflavin or EDC-HCl enhanced the durability and strength of the resin�dentin bond. � 2017
Description
Scopus
Keywords
Hybrid layer, Micro-tensile, Nanoleakage, Riboflavin, Surface treatment, Bond strength (materials), Crosslinking, Drops, Durability, Resins, Surface treatment, Carbodiimide hydrochlorides, Cross linking agents, Experimental groups, Hybrid layer, Micro-tensile, Micro-tensile bond strength, Nanoleakages, Riboflavin, Tensile strength, Cross Linking, Durability, Surface Treatment