What does this research mean for the field?

The etching strategy and adhesive formulation significantly affect the bond strength and fracture behavior of universal adhesives applied to dentin. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to evaluate the bond strength and fracture characteristics of universal adhesives applied to dentin using different etching strategies.

February 28, 2026Restorative Dentistry & EndodonticsOpen Access

Bonding and fractographic characterization of universal adhesives applied to dentin in multimode strategies: an in vitro study

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Authors

SMSamaa Morsy RBRim Bourgi LHLouis Hardan

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Overview

An in vitro study evaluates bond strength and failure patterns of universal adhesives in SE and TE modes, suggesting implications for clinical use.

Key Points

This research aims to evaluate the bond strength and fracture characteristics of universal adhesives applied to dentin using different etching strategies.
Eighteen human molars were used and sectioned to expose mid-coronal dentin.
Three universal adhesives were tested in self-etch and total-etch modes.
Micro-shear bond strength (μSBS) testing was conducted after bonding composite micro-rods and thermocycling.
Fracture surfaces were analyzed through scanning electron microscopy (SEM) and classified by type of failure.
Statistical analyses included two-way ANOVA, Tukey post hoc test, and Spearman correlation.
In total-etch mode, Single Bond Universal showed the highest μSBS with significant differences (p < 0.001).
No significant differences were noted in bond strength among adhesives in self-etch mode (p > 0.05).
SEM analysis classified fractures into adhesive, cohesive, and mixed types, with descriptions provided for each.
Adhesive failures correlated negatively with μSBS, while mixed failures correlated positively.

Cite This Study

Morsy et al. (2026) studied this question.

synapsesocial.com/papers/69a286240a974eb0d3c00dfc https://doi.org/10.5395/rde.2026.51.e12

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February 28, 2026Restorative Dentistry & EndodonticsOpen Access

Bonding and fractographic characterization of universal adhesives applied to dentin in multimode strategies: an in vitro study

View Full Paper

Ask AI

Bookmark

Authors

SMSamaa Morsy RBRim Bourgi LHLouis Hardan

Discussion

Member takes

Overview

An in vitro study evaluates bond strength and failure patterns of universal adhesives in SE and TE modes, suggesting implications for clinical use.

Key Points

This research aims to evaluate the bond strength and fracture characteristics of universal adhesives applied to dentin using different etching strategies.
Eighteen human molars were used and sectioned to expose mid-coronal dentin.
Three universal adhesives were tested in self-etch and total-etch modes.
Micro-shear bond strength (μSBS) testing was conducted after bonding composite micro-rods and thermocycling.
Fracture surfaces were analyzed through scanning electron microscopy (SEM) and classified by type of failure.
Statistical analyses included two-way ANOVA, Tukey post hoc test, and Spearman correlation.
In total-etch mode, Single Bond Universal showed the highest μSBS with significant differences (p < 0.001).
No significant differences were noted in bond strength among adhesives in self-etch mode (p > 0.05).
SEM analysis classified fractures into adhesive, cohesive, and mixed types, with descriptions provided for each.
Adhesive failures correlated negatively with μSBS, while mixed failures correlated positively.

Cite This Study

Morsy et al. (2026) studied this question.

synapsesocial.com/papers/69a286240a974eb0d3c00dfc https://doi.org/10.5395/rde.2026.51.e12

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