# Effect of different cavity liners on nanocomposite resin shear bond strength to dentine

## TL;DR

This study examines how different cavity liners affect the bond strength of nanocomposite resin to dentin.

## Contribution

The novelty lies in comparing the shear bond strength of nanocomposite resin to dentin with various cavity liners.

## Key findings

- All groups showed lower bond strength compared to the control group.
- Apacal ART had the highest bond strength followed by giomer and biodentin.
- There was no statistically significant difference between the groups.

## Abstract

The effect of different cavity liners on the shear bond strength of nanocomposite to dentin is of interest. A total of sixty extracted
caries-free maxillary, mandibular molars were randomly assigned to four groups in the following manner Group 1: control (no cavity liner),
group 2: Biodentin, group 3: Apacal ART and Group 4: Giomer. Following the application of different cavity liners based on the groups,
restoration was carried out using nanocomposite resin using the total-etch Tetric N bond adhesive. The samples were thereafter subjected
to a shear bond strength test at a cross-head speed of 1 mm/min until bond failure occurred, utilizing the universal testing machine. The
one-way ANOVA test and the post hoc test were used to evaluate the data for pairwise group comparisons. Compared to the control group,
all groups showed lower shear bond strength to dentin, irrespective of the type of liner. Apacal ART showed higher shear bond strength
followed by giomer and biodentin. However, there's no apparent statistical difference between the groups.