Comparison of resin bonding improvements to zirconia between one-bottle universal adhesives and tribochemical silica coating, which is better?

Haifeng Xie, Qiao Li, Feimin Zhang, Yi Lu, Franklin Chi Meng Tay, Mengke Qian, Chen Chen

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Objectives To evaluate the bonding of resin-cement to yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) via silica coating followed by silanization, and three one-bottle universal adhesives, with or without prior conditioning using a zirconia primer. Methods Y-TZP specimens (n = 160) were conditioned by tribochemical silica coating and silanization (CS), or alumina sandblasting with one of the following MDP containing adhesives or primers: Z-Prime Plus™ (zirconia primer, ZP), Single Bond Universal™ (SU), Clearfil Universal Bond™ (CU) or All-Bond Universal™ (AU). Additionally, some specimens (ZPSU, ZPCU and ZPAU) received Z-Prime Plus™ followed by one of the three adhesives. After 24 h water storage and "aging" (20,000 thermocycles plus additional 40-day water storage), shear bond strength (SBS) was measured. Fourier-transform infrared spectroscopy (FTIR) and X-ray Photoelectron Spectroscopy (XPS) were employed for characterization of the chemical bonds between the primer/adhesives and the zirconia. Thermodynamic calculations were used to examine the hydrolytic stability between the MDP-zirconia chemical bonds and the SiO2-silane chemical bonds. Results The CS and ZPCU groups showed higher SBS than the other six groups. There were no significant pairwise differences amongst ZP, SU and ZPSU, or amongst ZP, AU and ZPAU. Aging led to significantly decreased SBS for all groups except CS and ZPCU. There was no statistically significant interaction between surface treatment and aging. XPS determined the chemical bonds between MDP and zirconia. FTIR showed similar shifts in characteristic phosphate peaks for all the primer and/or adhesive groups. Result of thermodynamic calculation showed that equilibrium constant of SiO2-silane system is much larger than the one of MDP-tetragonal phase zirconia system. Significance The application of one-bottle universal adhesives after alumina sandblasting is an alternative to tribochemical silica coating with silanization for bonding to zirconia, while bonding between resin and Y-TZP is more susceptible to hydrolysis when zirconia primer or one-bottle universal adhesive is used.

Original languageEnglish (US)
Pages (from-to)403-411
Number of pages9
JournalDental Materials
Volume32
Issue number3
DOIs
StatePublished - Mar 1 2016

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Bottles
Silicon Dioxide
Zirconia
Adhesives
Resins
Silica
Coatings
Chemical bonds
Shear Strength
Yttria stabilized zirconia
Polycrystals
Silanes
Photoelectron Spectroscopy
Aluminum Oxide
Aging of materials
Fourier Transform Infrared Spectroscopy
Thermodynamics
Fourier transform infrared spectroscopy
Alumina
X ray photoelectron spectroscopy

Keywords

  • Adhesion
  • Bond
  • Dental zirconia
  • MDP
  • Phosphate ester
  • Primer
  • Universal adhesives
  • Y-TZP

ASJC Scopus subject areas

  • Materials Science(all)
  • Dentistry(all)
  • Mechanics of Materials

Cite this

Comparison of resin bonding improvements to zirconia between one-bottle universal adhesives and tribochemical silica coating, which is better? / Xie, Haifeng; Li, Qiao; Zhang, Feimin; Lu, Yi; Tay, Franklin Chi Meng; Qian, Mengke; Chen, Chen.

In: Dental Materials, Vol. 32, No. 3, 01.03.2016, p. 403-411.

Research output: Contribution to journalArticle

Xie, Haifeng ; Li, Qiao ; Zhang, Feimin ; Lu, Yi ; Tay, Franklin Chi Meng ; Qian, Mengke ; Chen, Chen. / Comparison of resin bonding improvements to zirconia between one-bottle universal adhesives and tribochemical silica coating, which is better?. In: Dental Materials. 2016 ; Vol. 32, No. 3. pp. 403-411.
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AU - Tay, Franklin Chi Meng

AU - Qian, Mengke

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N2 - Objectives To evaluate the bonding of resin-cement to yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) via silica coating followed by silanization, and three one-bottle universal adhesives, with or without prior conditioning using a zirconia primer. Methods Y-TZP specimens (n = 160) were conditioned by tribochemical silica coating and silanization (CS), or alumina sandblasting with one of the following MDP containing adhesives or primers: Z-Prime Plus™ (zirconia primer, ZP), Single Bond Universal™ (SU), Clearfil Universal Bond™ (CU) or All-Bond Universal™ (AU). Additionally, some specimens (ZPSU, ZPCU and ZPAU) received Z-Prime Plus™ followed by one of the three adhesives. After 24 h water storage and "aging" (20,000 thermocycles plus additional 40-day water storage), shear bond strength (SBS) was measured. Fourier-transform infrared spectroscopy (FTIR) and X-ray Photoelectron Spectroscopy (XPS) were employed for characterization of the chemical bonds between the primer/adhesives and the zirconia. Thermodynamic calculations were used to examine the hydrolytic stability between the MDP-zirconia chemical bonds and the SiO2-silane chemical bonds. Results The CS and ZPCU groups showed higher SBS than the other six groups. There were no significant pairwise differences amongst ZP, SU and ZPSU, or amongst ZP, AU and ZPAU. Aging led to significantly decreased SBS for all groups except CS and ZPCU. There was no statistically significant interaction between surface treatment and aging. XPS determined the chemical bonds between MDP and zirconia. FTIR showed similar shifts in characteristic phosphate peaks for all the primer and/or adhesive groups. Result of thermodynamic calculation showed that equilibrium constant of SiO2-silane system is much larger than the one of MDP-tetragonal phase zirconia system. Significance The application of one-bottle universal adhesives after alumina sandblasting is an alternative to tribochemical silica coating with silanization for bonding to zirconia, while bonding between resin and Y-TZP is more susceptible to hydrolysis when zirconia primer or one-bottle universal adhesive is used.

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