Materials (Dec 2023)

<i>“No-Primer”</i> Resin Cementation of Lithium Disilicate Ceramic: A Microtensile Bond Strength Evaluation

  • Mohamed M. Awad,
  • Feras Alhalabi,
  • Abdulaziz Abdullah Alanazi,
  • Abdulaziz Ali Alanazi,
  • Ghanem Abdullah Alshahrani,
  • Cheryl Fu,
  • Refal Saad Albaijan,
  • Rana Alkattan,
  • Amr S. Fawzy

DOI
https://doi.org/10.3390/ma17010137
Journal volume & issue
Vol. 17, no. 1
p. 137

Abstract

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Objective: The objective of this study was to evaluate the resin-ceramic adhesion of a long-carbon-chain silane (LCSI)-containing resin cement. Methods: Polished lithium disilicate ceramic discs were etched with hydrofluoric acid and randomly assigned into four groups; (PSAP), cemented using a silane-free resin cement with no prior priming; (PSAP-S), primed using a silane-containing primer before cementation using a silane-free resin cement; (PSAU), cemented using a LCSI-containing resin cement with no prior priming; (PSAU-S), primed as for the group (PSAP-S) and cemented using a LCSI-containing resin cement. The cemented blocks were sectioned into microbeams. The resin-ceramic microtensile bond strength (μTBS) was measured at 1 week and after thermocycling. The failure modes of the tested microbeams were evaluated. Results: The μTBS of the LCSI-containing and silane-free resin cements, either with or without a prior priming step, did not significantly differ. The adhesion of the LCSI-containing resin cement to lithium disilicate ceramic, either with or without a prior priming step, did not significantly deteriorate after artificial aging. Conclusions: The long-carbon-chain silane (LCSI) monomer incorporated in the resin cement eliminated the need for a silane priming step of a hydrofluoric acid-etched lithium disilicate ceramic.

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