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Comparative study of the shear bond strength of various veneering materials on grade II commercially pure titanium
- Comparative study of the shear bond strength of various veneering materials on grade II commercially pure titanium
- Lee, Fun-Young; Jun, Sul-Gi; Wright, Robert F.; Park, Eun-Jin
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- JOURNAL OF ADVANCED PROSTHODONTICS
- JOURNAL OF ADVANCED PROSTHODONTICS vol. 7, no. 1, pp. 69 - 75
- Titanium; Bond strength; Veneering material; Heat-polymerized acrylic resin; Porcelain; Indirect composite
- KOREAN ACAD PROSTHODONTICS
- SCIE; SCOPUS; KCI
- Document Type
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- PURPOSE. To compare the shear bond strength of various veneering materials to grade II commercially pure titanium (CP-Ti). MATERIALS AND METHODS. Thirty 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 degrees C 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. RESULTS. The 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. CONCLUSION. The shear bond strength of veneering materials such as heat-polymerized acrylic resin, porcelain, and indirect composite to CP-Ti was compatible to that of heat-polymerized acrylic resin to cast gold alloy.
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