Comparison of retentive systems for composites used as alternatives to porcelain in fixed partial dentures

Tarozzo, Luciana Silva Andrade; Mattos, Maria da Glória Chiarello de; Ribeiro, Ricardo Faria; Semprini, Marisa

doi:10.1016/s0022-3913(03)00180-x

Cited by 9 publications

(1 citation statement)

References 22 publications

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“…In the previous study, the association of chemical and mechanical retention showed higher bond strength than mechanical or chemical retention alone. 22 , 23 Therefore, all the possible treatments for better retention were applied to this study.…”

Section: Discussionmentioning

confidence: 99%

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

Lee

Wright

et al. 2015

J Adv Prosthodont

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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.

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Section: Discussionmentioning

confidence: 99%