Evaluation of the Effects of Bromelain and Papain Enzymes on Shear Bond Strength of Composite Resin to Enamel

• Main Authors: Farahnaz Sharafeddin (Author), Mohammad Hossein Yazdanpanah (Author), Zahra Jowkar (Author)
• Format: Book
• Published: Hindawi Limited, 2021-01-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary

Aim. This study aimed to evaluate the effects of 6% bromelain and 10% papain enzymes on shear bond strength (SBS) of composite resin to enamel compared to conventional 37% phosphoric acid etching. Materials and Methods. 50 human maxillary premolar teeth were randomly divided into 5 groups (G1-G5/n = 10). In G1 and G2, after etching enamel with 37% phosphoric acid for 15 seconds and washing the surface, 10% papain and 6% bromelain enzymes were used, respectively. In G3 and G4, 6% bromelain or 10% papain enzymes were applied on enamel. In G5, the enamel surface was etched with 37% phosphoric acid for 15 seconds. A two-step etch-and-rinse adhesive system (Adper Single Bond 2) was applied. A nanohybrid composite (Z350) was placed using Teflon molds. All the samples were then subjected to the SBS test using a universal testing machine. Data analysis was performed using a one-way ANOVA test followed by the Tukey test. p values less than 0.05 were considered significant. Results. Comparison of the mean SBS between G1, G2, and G5 shows no significant differences (p>0.05); however, they had higher mean SBS compared with G3 and G4 (p<0.0001). Conclusions. The shear bond strength of composite to enamel was not affected significantly using either 6% bromelain or 10% papain enzymes after 37% phosphoric acid application. Moreover, 6% bromelain and 10% papain enzymes were not as effective as 37% phosphoric acid alone.

Item Description

1687-8728
1687-8736
10.1155/2021/3233639