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April 10, 2026Scientific ReportsOpen Access

Microtensile bond strength and dentin–adhesive interface of universal adhesives before and after artificial aging: an in vitro study

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Authors

FSFlor Santander-RengifoCCCarmen Martin Carreras-PresasCCCésar Cayo-Rojas

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Overview

In vitro evaluation of bond strength and interface stability of universal adhesives before and after aging, suggesting differences in durability.

Key Points

  • This research aims to evaluate the bond strength and interface stability of universal adhesives before and after artificial aging.
  • Used four types of universal adhesives on human molar samples.
  • Conducted microtensile bond strength tests under two aging conditions: with and without artificial aging.
  • Examined failure modes under a stereomicroscope after testing.
  • Measured adhesive-interface thickness using scanning electron microscopy.
  • Significant bond strength reduction in Palfique Universal Bond after aging.
  • Single Bond Universal and All-Bond Universal maintained bond strength without thickness reduction.
  • One Coat 7 Universal showed decreased bond strength despite stable interface thickness.
  • Palfique Universal Bond exhibited the thinnest adhesive interface after aging compared to others.

Cite This Study

Santander-Rengifo et al. (2026) studied this question.

synapsesocial.com/papers/69d894326c1944d70ce05234https://doi.org/10.1038/s41598-026-47697-y
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