TY - JOUR
A1 - Campos, Fernanda
A1 - Sarmento, Hugo
A1 - Alves, Maria
A1 - Amaral, Marina
A1 - Valandro, L
A1 - Bottino, Marco
A1 - Souza, Rodrigo
T1 - Resin bond to root dentin: Influence of adhesive systems and solvent drying time
Y1 - 2013/9/1
JF - Archives of International Surgery
JO - Arch Int Surg
SP - 216
EP - 221
VL - 3
IS - 3
UR - https://www.archintsurg.org/article.asp?issn=2278-9596;year=2013;volume=3;issue=3;spage=216;epage=221;aulast=Campos
DO - 10.4103/2278-9596.129567
N2 - Background: Endodontically treated teeth with damaged coronal tooth structure need an additional retention to provide a durable restoration. We evaluate different adhesive systems and solvent drying time on the push-out bond strength of fiber posts luted to root dentin.
Materials and Methods: For this in vitro study, the canals of 90 bovine teeth (16 mm in length) were prepared, the roots were embedded (14 mm) in acrylic resin and allocated into nine groups (n = 10), according to the "adhesive system" (Multi-bottle etch-and-rinse self-curing adhesive system-MBSC/ Scotchbond Multi-Purpose; Simplified etch-and-rinse dual-curing adhesive-SLC/One-Step; Simplified etch-and-rinse light-curing adhesive-SDC/Excite DSC) and "solvent drying time" (control, 50 s and 110 s). The fiber posts were luted using resin cement and composite cores were made. Each set of root/post/core was submitted to mechanical cycling (10.000.000 cycles, 84 N, 4 Hz). Each root was cut into four disk-samples (1.8 mm in thickness) and submitted to push-out testing. The data (MPa) were analyzed using analysis of variance (ANOVA) (two-way) and Tukey's test (5%).
Results: The factor "adhesive system" (P = 0.0081) influenced the bond strength significantly (ANOVA). The MBSC groups (6.0 ± 2.2 MPa) promoted higher bond strength than SLC groups (3.7 ± 2.1 MPa) b and was similar to SDC groups (4.4 ± 3.4 MPa) a, b (Tukey).
Conclusion: The solvent drying time did not affect the bond strength of fiber postluted to root dentin, regardless the adhesive solution used.
ER -