title: Dual-cured etch-and-rinse adhesive systems increase the bond durability of direct coronal dentin restorations.
abstract: This study aimed to evaluate the bond durability of dentin restorations bonded with light- or dual-cured etch-and-rinse adhesive systems. A three-step adhesive system (Scotchbond Multipurpose Plus), an acetone-based two-step adhesive system (Prime & Bond 2.1), and an ethanol-based two-step adhesive system (Excite) were tested. Both the light- and the dual-cured versions were evaluated. High C-factor dentin cavities were prepared on 120 bovine incisors, which were then restored with resin composite (n=10). The samples were stored in water for 24 hours, and half of them were subjected to additional degradation with 10% NaOCl for five hours. The push-out bond strength test was performed in a universal testing machine until failure. Failure modes were evaluated by scanning electron microscopy. Data were analyzed by three-way analysis of variance and Tukey tests (p<0.05). The dual-cured adhesive system presented a higher immediate bond strength and durability than those that were light cured. The three-step adhesive system produced the highest values, whereas the acetone-based adhesive system produced the lowest result. Therefore, the use of dual-cured etch-and-rinse adhesive systems can induce increased bond durability to direct coronal dentin restorations.
authors: B C D
authors: BC
authors: Borges
authors: A R R C
authors: AR
authors: Vilela
authors: C A
authors: CA
authors: da Silva-Junior
authors: E J
authors: EJ
authors: Souza-Junior
authors: M A C
authors: MA
authors: Sinhoreti
authors: F H S L
authors: FH
authors: Pinheiro
authors: R
authors: R
authors: Braz
authors: M A J R
authors: MA
authors: Montes
mesh_terms: D000096:Acetone / Q000627:therapeutic use; D000818:Animals; D002417:Cattle; D045662:Dental Etching / Q000379:methods*; D003793:Dental Restoration, Permanent / Q000379:methods*; D003799:Dental Stress Analysis; D017220:Dentin-Bonding Agents / Q000627:therapeutic use*; D007180:Incisor; D055115:Light-Curing of Dental Adhesives / Q000379:methods; D011109:Polymethacrylic Acids / Q000627:therapeutic use; D019279:Resin Cements / Q000627:therapeutic use; D055116:Self-Curing of Dental Resins / Q000379:methods
chemical_list: D017220:Dentin-Bonding Agents; D011109:Polymethacrylic Acids; D019279:Resin Cements; C444444:prime and bond 2.1; D000096:Acetone; C041330:Scotchbond