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

Abstract

PURPOSETo compare the shear bond strength of various veneering materials to grade II commercially pure titanium (CP-Ti).MATERIALS AND METHODSThirty specimens of CP-Ti disc with 9 mm diameter and 10 mm height were divided into three experimental groups. Each group was bonded to heat-polymerized acrylic resin (Lucitone 199), porcelain (Triceram), and indirect composite (Sinfony) with 7 mm diameter and 2 mm height. For the control group (n=10), Lucitone 199 were applied on type IV gold alloy castings. All samples were thermocycled for 5000 cycles in 5-55℃ water. The maximum shear bond strength (MPa) was measured with a Universal Testing Machine. After the shear bond strength test, the failure mode was assessed with an optic microscope and a scanning electron microscope. Statistical analysis was carried out with a Kruskal-Wallis Test and Mann-Whitney Test.RESULTSThe mean shear bond strength and standard deviations for experimental groups were as follows: Ti-Lucitone 199 (12.11 ± 4.44 MPa); Ti-Triceram (11.09 ± 1.66 MPa); Ti-Sinfony (4.32 ± 0.64 MPa). All of these experimental groups showed lower shear bond strength than the control group (16.14 ± 1.89 MPa). However, there was no statistically significant difference between the Ti-Lucitone 199 group and the control group, and the Ti-Lucitone 199 group and the Ti-Triceram group. Most of the failure patterns in all experimental groups were adhesive failures.CONCLUSIONThe shear bond strength of veneering materials such as heat-polymerized acrylic resin, porcelain, and indirect composite to CP-Ti was compatible to that of heatpolymerized acrylic resin to cast gold alloy.

Influence of surface treatment and thermocycling on porcelain bonding to two forms of titanium

“…After porcelain application, Half of the specimens in each subgroup (n=5) were subjected to thermocycling (5 ºC to 55 ºC, 5000 cycles) in a thermocycling machine with a 5 second transfer time between baths and 10 second dwell time in each bath. 31,41 All specimens were submitted to the 3-point bending test in a universal testing machine (Model LRX-plus; Lloyd Instruments Ltd), in compliance with the requirements of ISO standard 9693-1:2012 specifications. 40 The specimens were positioned on 2 supports with a span distance of 20 mm and then loaded (5 KN) at the midline of the metal specimens by using a bi-beveled metallic chisel at a speed of 0.5 mm/min until failure occurred (Fig.…”

Effect of Alumina Particle Size on the Bond Strength between Autopolymerized Acrylic Resin and Commercially Pure Titanium

“…The shear bond strength was tested following the well‐established technique described previously . A mechanical universal testing system (Instron 5965; Instron, Norwood, MA) was used for this purpose.…”

“…Following shear testing, ten random specimens from each group were examined under a stereoscopic microscope (Nikon Stereoscopic Zoom Microscope SMZ1000; Nikon Corp., Tokyo, Japan) attached to a special digital camera (DXM1200F; Nikon Corp.) at 30x magnification to identify the mode of bond failure (Fig ) . The failure mode was categorized as cohesive failure within resin, adhesive failure at the metal/resin interface, or a mixture of cohesive and adhesive failures.…”

Retentive Force of Glass-Ceramic Soldered Customized Zirconia Abutment Copings with Prefabricated Titanium Bases

“…These can form a chemical bond with silicon dioxide. This bonding technology is considered mature and is recommended for routine clinical use [ 12 , 13 , 14 , 15 ]. In contrast, the bond between the glass–ceramic solder and zirconia is based on mechanical adhesion.…”