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Effect of metal primers and tarnish treatment on bonding between dental alloys and veneer resin.

Choo SS, Huh YH, Cho LR, Park CJ - J Adv Prosthodont (2015)

Bottom Line: However, in Ti alloy, there was no significant difference between Alloy Primer and MAC-Bond II.Combined use of MDP and VBATDT were effective in bonding of the resin to Co-Cr and Au-Ag-Pd alloy.Tarnish using polyvinylpyrrolidone solution negatively affected on the bonding of veneer resin to Co-Cr and Au-Ag-Pd alloys.

View Article: PubMed Central - PubMed

Affiliation: Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Gangneung, Republic of Korea.

ABSTRACT

Purpose: The aim of this study was to evaluate the effect of metal primers on the bonding of dental alloys and veneer resin. Polyvinylpyrrolidone solution's tarnish effect on bonding strength was also investigated.

Materials and methods: Disk-shape metal specimens (diameter 8 mm, thickness 1.5 mm) were made from 3 kinds of alloy (Co-Cr, Ti and Au-Ag-Pd alloy) and divided into 4 groups per each alloy. Half specimens (n=12 per group) in tarnished group were immersed into polyvinylpyrrolidone solution for 24 hours. In Co-Cr and Ti-alloy, Alloy Primer (MDP + VBATDT) and MAC-Bond II (MAC-10) were applied, while Alloy Primer and V-Primer (VBATDT) were applied to Au-Ag-Pd alloys. After surface treatment, veneering composite resin were applied and shear bond strength test were conducted.

Results: Alloy Primer showed higher shear bond strength than MAC-Bond II in Co-Cr alloys and Au-Ag-Pd alloy (P<.05). However, in Ti alloy, there was no significant difference between Alloy Primer and MAC-Bond II. Tarnished Co-Cr and Au-Ag-Pd alloy surfaces presented significantly decreased shear bond strength.

Conclusion: Combined use of MDP and VBATDT were effective in bonding of the resin to Co-Cr and Au-Ag-Pd alloy. Tarnish using polyvinylpyrrolidone solution negatively affected on the bonding of veneer resin to Co-Cr and Au-Ag-Pd alloys.

No MeSH data available.


Tarnished specimen by polyvinylpyrrolidone solution (SEM photograph, ×4,000 magnification). (A) Co-Cr alloy, (B) Ti alloy, (C) Au-Ag-Pd alloy.
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Figure 4: Tarnished specimen by polyvinylpyrrolidone solution (SEM photograph, ×4,000 magnification). (A) Co-Cr alloy, (B) Ti alloy, (C) Au-Ag-Pd alloy.

Mentions: Figures 3, 4, 5 show the SEM images of the metal surfaces subjected to surface treatment. The surfaces of the Co-Cr alloy specimens subjected to airborne-particle abrasion (Fig. 3A) showed sharp edges with a honeycomb structure. Such cavities could be observed when the specimens were tarnished (Fig. 4A).


Effect of metal primers and tarnish treatment on bonding between dental alloys and veneer resin.

Choo SS, Huh YH, Cho LR, Park CJ - J Adv Prosthodont (2015)

Tarnished specimen by polyvinylpyrrolidone solution (SEM photograph, ×4,000 magnification). (A) Co-Cr alloy, (B) Ti alloy, (C) Au-Ag-Pd alloy.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4644781&req=5

Figure 4: Tarnished specimen by polyvinylpyrrolidone solution (SEM photograph, ×4,000 magnification). (A) Co-Cr alloy, (B) Ti alloy, (C) Au-Ag-Pd alloy.
Mentions: Figures 3, 4, 5 show the SEM images of the metal surfaces subjected to surface treatment. The surfaces of the Co-Cr alloy specimens subjected to airborne-particle abrasion (Fig. 3A) showed sharp edges with a honeycomb structure. Such cavities could be observed when the specimens were tarnished (Fig. 4A).

Bottom Line: However, in Ti alloy, there was no significant difference between Alloy Primer and MAC-Bond II.Combined use of MDP and VBATDT were effective in bonding of the resin to Co-Cr and Au-Ag-Pd alloy.Tarnish using polyvinylpyrrolidone solution negatively affected on the bonding of veneer resin to Co-Cr and Au-Ag-Pd alloys.

View Article: PubMed Central - PubMed

Affiliation: Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Gangneung, Republic of Korea.

ABSTRACT

Purpose: The aim of this study was to evaluate the effect of metal primers on the bonding of dental alloys and veneer resin. Polyvinylpyrrolidone solution's tarnish effect on bonding strength was also investigated.

Materials and methods: Disk-shape metal specimens (diameter 8 mm, thickness 1.5 mm) were made from 3 kinds of alloy (Co-Cr, Ti and Au-Ag-Pd alloy) and divided into 4 groups per each alloy. Half specimens (n=12 per group) in tarnished group were immersed into polyvinylpyrrolidone solution for 24 hours. In Co-Cr and Ti-alloy, Alloy Primer (MDP + VBATDT) and MAC-Bond II (MAC-10) were applied, while Alloy Primer and V-Primer (VBATDT) were applied to Au-Ag-Pd alloys. After surface treatment, veneering composite resin were applied and shear bond strength test were conducted.

Results: Alloy Primer showed higher shear bond strength than MAC-Bond II in Co-Cr alloys and Au-Ag-Pd alloy (P<.05). However, in Ti alloy, there was no significant difference between Alloy Primer and MAC-Bond II. Tarnished Co-Cr and Au-Ag-Pd alloy surfaces presented significantly decreased shear bond strength.

Conclusion: Combined use of MDP and VBATDT were effective in bonding of the resin to Co-Cr and Au-Ag-Pd alloy. Tarnish using polyvinylpyrrolidone solution negatively affected on the bonding of veneer resin to Co-Cr and Au-Ag-Pd alloys.

No MeSH data available.