Dipentaerythritol penta-acrylate phosphate - An alternative phosphate ester monomer for bonding of methacrylates to zirconia

Ying Chen, Franklin Chi Meng Tay, Zhicen Lu, Chen Chen, Mengke Qian, Huaiqin Zhang, Fucong Tian, Haifeng Xie

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The present work examined the effects of dipentaerythritol penta-acrylate phosphate (PENTA) as an alternative phosphate ester monomer for bonding of methacrylate-based resins to yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) and further investigated the potential bonding mechanism involved. Shear bond strength testing was performed to evaluate the efficacy of experimental PENTA-containing primers (5, 10, 15, 20 or 30 wt% PENTA in acetone) in improving resin-Y-TZP bond strength. Bonding without the use of a PENTA-containing served as the negative control, and a Methacryloyloxidecyl dihydrogenphosphate(MDP)-containing primer was used as the positive control. Inductively coupled plasma-mass spectrometry (ICP-MS), X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR) were used to investigate the potential existence of chemical affinity between PENTA and Y-TZP. Shear bond strengths were significant higher in the 15 and 20 wt% PENTA groups. The ICP-MS, XPS and FTIR data indicated that the P content on the Y-TZP surface increased as the concentration of PENTA increased in the experimental primers, via the formation of Zr-O-P bond. Taken together, the results attest that PENTA improves resin bonding of Y-TZP through chemical reaction with Y-TZP. Increasing the concentration of PENTA augments its binding affinity but not its bonding efficacy with zirconia.

Original languageEnglish (US)
Article number39542
JournalScientific Reports
Volume6
DOIs
StatePublished - Dec 21 2016

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Methacrylates
Esters
Monomers
Phosphates
Polycrystals
Inductively coupled plasma mass spectrometry
Resins
X ray photoelectron spectroscopy
PENTA
acrylic acid
zirconium oxide
Bond strength (materials)
Acetone
yttria stabilized tetragonal zirconia
Chemical reactions
Testing

ASJC Scopus subject areas

  • General

Cite this

Dipentaerythritol penta-acrylate phosphate - An alternative phosphate ester monomer for bonding of methacrylates to zirconia. / Chen, Ying; Tay, Franklin Chi Meng; Lu, Zhicen; Chen, Chen; Qian, Mengke; Zhang, Huaiqin; Tian, Fucong; Xie, Haifeng.

In: Scientific Reports, Vol. 6, 39542, 21.12.2016.

Research output: Contribution to journalArticle

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