J Adv Prosthodont.  2013 Nov;5(4):382-387. 10.4047/jap.2013.5.4.382.

The effect of alumina and aluminium nitride coating by reactive magnetron sputtering on the resin bond strength to zirconia core

• Kulunk T
• Kulunk S
• Baba S
• Ozturk O
• Danisman S
• Savas S

• KMID: 2176525
• DOI: http://doi.org/10.4047/jap.2013.5.4.382

Abstract

PURPOSE
Although several surface treatments have been recently investigated both under in vitro and in vivo conditions, controversy still exists regarding the selection of the most appropriate zirconia surface pre-treatment. The purpose of this study was to evaluate the effect of alumina (Al) and aluminium nitride (AlN) coating on the shear bond strength of adhesive resin cement to zirconia core.
MATERIALS AND METHODS
Fifty zirconia core discs were divided into 5 groups; air particle abrasion with 50 microm aluminum oxide particles (Al2O3), polishing + Al coating, polishing + AlN coating, air particle abrasion with 50 microm Al2O3 + Al coating and air particle abrasion with 50 microm Al2O3 + AlN coating. Composite resin discs were cemented to each of specimens. Shear bond strength (MPa) was measured using a universal testing machine. The effects of the surface preparations on each specimen were examined with scanning electron microscope (SEM). Data were statistically analyzed by one-way ANOVA (alpha=.05).
RESULTS
The highest bond strengths were obtained by air abrasion with 50 microm Al2O3, the lowest bond strengths were obtained in polishing + Al coating group (P<.05).
CONCLUSION
Al and AlN coatings using the reactive magnetron sputtering technique were found to be ineffective to increase the bond strength of adhesive resin cement to zirconia core.

Keyword

Air abrasion; Magnetron sputtering; Coating; Zirconia

MeSH Terms

Adhesives
Aluminum Oxide*
Collodion
Resin Cements
Zirconium
Adhesives
Aluminum Oxide
Collodion
Resin Cements
Zirconium

Figure

• 

  Fig. 1 SEM images of treated zirconia surfaces; Air particle abrasion with Al2O3 (A), Al coating (B), AlN coating (C).

• 

  Fig. 2 Lateral view of coated zirconia surfaces; Al coating (A), AlN coating (B).

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