Comparative Evaluation of Bond Strengths Between Dual Cure Resin Cement and Light Cure Resin Cement in Root Surface Indirect Restorations: An In Vitro Analysis Study

TL;DR

This study compared the bond strength of two types of resin cements used in dental restorations on root surfaces and found no significant difference between them.

Contribution

The study provides an in vitro comparison of dual cure and light cure resin cements for root surface bonding.

Findings

Light cure resin (Calibra Veneer) showed a higher mean shear bond strength (57 N) than dual cure resin (Fusion Ultra D/C) (41 N).

The difference in bond strength between the two cements was not statistically significant (P>0.05).

Abstract

Aim

The aim of this study was to evaluate the shear bond strength between dual cure and light cure resin cements in root surface indirect restorations.

Materials and methods

Ten recently extracted human teeth were selected. Cylindrical blocks of resin were prepared and bonded near the Cemento-Enamel Junction (CEJ) of the prepared teeth to mimic the restoration at the root surface. The samples were randomly luted to the root surface using the light cure (Calibra Veneer, Dentsply Sirona, India) and dual cure (Fusion Ultra D/C, DenPro, USA) forming two groups. The bond strength was checked using the INSTRON 3000 device (INSTRON, MA, USA). The point of fracture of the prepared sample from the tooth surface was noted. All readings were tabulated and further statistically analyzed.

Results

On comparing the two groups, it was found that the light cured resin had a greater mean shear bond strength (57 N) than the dual cure resin cement (41 N). The difference in the mean value of the shear bond strength between two resin cements was found to be statistically not significant according to independent T-test analysis using Levene’s Test (P>0.05).

Conclusion

From the results obtained and within the limits of the study conducted, we can infer that Calibra Veneer is a more viable option for luting to the root surface area. On the other hand, Fusion Ultra Dual cure resin cement seems to have similar results but has a lower bond strength than the other.

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