Effect acidic and alkaline/heat treatments on the bond strength of different luting cements to commercially pure titanium

Investigation of the effectiveness of surface treatments that promote a strong bond strength of resin cements to metals can contribute significantly to the longevity of metal-ceramic restorations. This study evaluated the effect of surface treatments on the shear bond strength (SBS) of a resin cement to commercially pure titanium (CP Ti). Ninety cast CP Ti discs were divided into 3 groups (n=30), which received one of the following airborne-particle abrasion conditions: (1) 50 ?m Al2O3 particles; (2) 30 ?m silica-modified Al2O3 particles (Cojet Sand); (3) 110 ?m silica-modified Al2O3 particles (Rocatec). For each airborne-particle abrasion condition, the following post-airborne-particle abrasion treatments were used (n=10): (1) none; (2) adhesive Adper Single Bond 2; (3) silane RelyX Ceramic Primer. RelyX ARC resin cement was bonded to CP Ti surfaces. All specimens were thermally cycled before being tested in shear mode. Failure mode was determined. The best association was Rocatec plus silane. All groups showed 100% adhesive failure. There were combinations that promote higher SBS than the protocol recommended by the manufacturer of RelyX ARC.

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Effect of a magnetron-sputtered ZrSiN/ZrO2 film on the bond strength of commercially pure titanium to porcelain

Journal of Prosthetic Dentistry ◽

10.1016/s0022-3913(13)60307-8 ◽

2013 ◽

Vol 109 (5) ◽

pp. 313-318 ◽

Cited By ~ 5

Author(s):

Guowei Wang ◽

Xiaojing Wang ◽

Yimin Zhao ◽

Tianwen Guo

Keyword(s):

Bond Strength ◽

Pure Titanium ◽

Commercially Pure Titanium ◽

Zro2 Film ◽

Commercially Pure

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Effect of laser welding on the titanium composite tensile bond strength

Brazilian Dental Journal ◽

10.1590/s0103-64402009000500008 ◽

2009 ◽

Vol 20 (5) ◽

pp. 403-409 ◽

Cited By ~ 4

Author(s):

Rodrigo Galo ◽

Ricardo Faria Ribeiro ◽

Renata Cristina Silveira Rodrigues ◽

Valéria de Oliveira Pagnano ◽

Maria da Glória Chiarello de Mattos

Keyword(s):

Bond Strength ◽

Laser Welding ◽

Shear Bond Strength ◽

Testing Machine ◽

Pure Titanium ◽

Al2o3 Particle ◽

Commercially Pure Titanium ◽

Airborne Particle ◽

Commercially Pure ◽

Indirect Composites

The aim of this study was to analyze the shear bond strength between commercially pure titanium, with and without laser welding, after airbone-particle abrasion (Al2O3) and 2 indirect composites. Sixty-four specimens were cast and divided into 2 groups with and without laser welding. Each group was divided in 4 subgroups, related to Al2O3 grain size: A - 250 µm; B - 180 µm; C- 110 µm; and D - 50 µm. Composite rings were formed around the rods and light polymerized using UniXS unit. Specimens were invested and their shear bond strength at failure was measured with a universal testing machine at a crosshead speed of 2.0 mm/min. Statistical analysis was carried out with ANOVA and Tukey's test (α=0.05). The highest bond strength means were recorded in 250 µm group without laser welding. The lowest shear bond strength means were recorded in 50 µm group with laser welding. Statistically significant differences (p<0.05) were found between all groups. In conclusion, airborne particle abrasion yielded significantly lower bond strength as the Al2O3 particle size decreased. Shear bond strength decreased in the laser welded specimens.

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