Comparative study of chemical and mechanical retentive systems for bonding of indirect composite resin to commercially pure titanium

Abstract

This study evaluated the effect of chemical and mechanical surface treatments for cast metal alloys on the bond strength of an indirect composite resin (Artglass) to commercially pure titanium (cpTi). Thirty cylindrical metal rods (3 mm diameter x 60 mm long) were cast in grade-1 cpTi and randomly assigned to 6 groups (n=5) according to the received surface treatment: sandblasting; chemical treatment; mechanical treatment -0.4 mm beads; mechanical treatment -0.6 mm beads; chemical/mechanical treatment -0.4 mm; and chemical/ mechanical treatment -0.6 mm beads. Artglass rings (6.0 mm diameter x 2.0 mm thick) were light cured around the cpTi rods, according manufacturer's specifications. The specimens were invested in hard gypsum and their bond strength (in MPa) to the rods was measured at fracture with a universal testing machine at a crosshead speed of 2.0 mm/min and 500 kgf load cell. Data were analyzed statistically by one-way ANOVA and Tukey test (α=5%). The surface treatments differed significantly from each other (p<0.05) regarding the recorded bond strengths. Chemical retention and sandblasting showed statistically similar results to each other (p=0.139) and both had significantly lower bond strengths (p<0.05) than the other treatments. In conclusion, mechanical retention, either associated or not to chemical treatment, provided higher bond strength of the indirect composite resin to cpTi.

Effect of Air Abrasion and Different Silicoating Techniques on the Bond Strength of Particulate Filler Composite to Titanium

“…Silane coupling with heat treatment may be effective on titanium surface to increase shear bond strength [20]. When compared traditional surface treatment methods, with this system more favorable results were obtained in adhesive prostheses, metal-composite fixed partial denture and crowns, telescopic crowns and removable partial dentures [12]. But when compared the Siloc system, silano-pen application is useful and easy handling in clinical and laboratory condition.…”

“…The presence of an excessive oxide layer is a possible cause of decreased bonding durability. For this reason, particulate filler composite resin materials used on titanium castings as an alternative to porcelain fused to metal restorations for esthetic anterior/posterior restorations [9][10][11][12]. Indirect lightcured composite resins have been extensively used in tooth restoration because they can provide acceptable aesthetics, wear resistance similar to tooth structure, and are easy to manipulate in the laboratory and to repair [3,8,9].…”

Comparative study of the shear bond strength of various veneering materials on grade II commercially pure titanium

“…Besides this, a comparison between chemical and mechanical treatments shows that mechanical retention is greater than chemical. 18 , 19 , 20 However, chemical bonding has many advantages. It reduces microleakage at the interface and is useful in limited space where the mechanical retention methods are restricted.…”

Effect of luting system with acidic primers on the durability of bonds with Ti-15Mo-5Zr-3Al titanium alloy and its component metals

“…The method of bonding dental prostheses to the luting material is important for the long-term stable prognosis of prostheses. Current bonding methods include mechanical retention 10) and surface modification of prostheses, but one of the most effective methods is the application of functional adhesive monomers to the adherend surface. Many reports have been published on bonding to titanium [11][12][13][14][15][16][17] and Ti-6Al-7Nb alloy 16,[18][19][20][21][22][23][24] , and the effectiveness of acidic functional monomers on base metal alloy has become apparent 25) .…”