Tensile peel failure of resin-bonded Ni/Cr beams: An experimental and finite element study

Northeast, S.E.; Noort, Richard van; Shaglouf, A.S.

doi:10.1016/0300-5712(94)90126-0

Cited by 18 publications

(14 citation statements)

References 15 publications

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“…Our results confirm the findings and the conclusions of Sneddon [ 11 ], Nakabayashi et al [ 12], Peutzfeldt and Asmussen [ 17], Tanaka et al [13], and Noort et al [15]. Northeast et al [21] combined the tensile peel test of resin-bonded Ni/Cr beams with a finite element study and reported that the load at failure was closely correlated to the beam thickness.…”

Section: Discussionsupporting

confidence: 95%

Effect of bonded metal substrate area and its thickness on the strength and durability of adhesively bonded joints

Pfeiffer¹,

Shakal

1998

Journal of Adhesion Science and Technology

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In this in vitro study, the effect of substrate surface area and substrate thickness on the strength and durability of an adhesively bonded joint was evaluated. Sixty metal substrate samples were cast out of a cobalt-chromium alloy. Samples of the first group were in a disk shape of 2 mm thickness and 35 mm2, 65 mm2, and 95 mm2 surface area with a U-shaped loop on the non-testing side. Samples of the second group were in the shape of disks of surface area 65 mm2 with a U-shaped loop and thicknesses of 0.5 mm, 1 mm, or 2 mm. All samples were treated by the Silicoater MD® method and bonded with bisphenol-A glycidyl methacrylate (Bis-GMA) adhesive. Samples were either stored in distilled water for 3 days or thermocycled for 5000 cycles followed by storage for 180 days in water at 37 °C. After storage, the tensile bond strength was determined. Increasing the bonded surface area resulted in a significant drop in the initial bond strength values. However, after thermocycling and water storage, the bond strength increased with increasing bonded surface area. Increasing the substrate thickness resulted in a significant increase of the initial bond strength values. After thermocycling and water storage, there were no significant differences in the bond strength values for samples with different thicknesses.

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Section: Discussionsupporting

confidence: 95%

Effect of bonded metal substrate area and its thickness on the strength and durability of adhesively bonded joints

Pfeiffer¹,

Shakal

1998

Journal of Adhesion Science and Technology

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“…A combination of shear and tensile stresses is far more unfavorable than a combination of shear and compressive stresses, and might lead to peel failure of the interface. The loads for adhesive failure by peeling action are considerably less than those required for pure tensile bond failure (17). Interface area III was subjected to shear and compressive stresses, whereas the other interfaces were subjected to shear and tensile stresses.…”

Section: Fe Analysis Of Loaded Composite Restorationsmentioning

confidence: 99%

Can internal stresses explain the fracture resistance of cusp‐replacing composite restorations?

Fennis¹,

Kuijs

Barink

et al. 2005

European J Oral Sciences

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The aim of this study was to explore and compare the results of occlusal load application to cusp-replacing composite restorations, studied by means of finite element (FE) analysis and in vitro load tests. A three-dimensional (3D) FE model was created with a set up similar to an in vitro load test that assessed the fatigue resistance of upper premolars with buccal cusp-replacing resin composite restorations. Occlusal load was applied to two geometries (with and without palatal cuspal coverage), and the tooth-restoration interface and composite material stresses were calculated. Subsequently, safety factors were calculated by dividing the material strength values by the obtained stresses. The highest safety factors were observed for the restorations with cuspal coverage. This was consistent with the load test, in which cuspal coverage led to higher fracture resistance. Furthermore, the FE analysis predicted that failure of the tooth-restoration interface is more likely than failure of the composite material. Correspondingly, the load test showed predominantly adhesive failures of the restorations. Although the described test methods did not lead to a complete understanding of the failure mechanism, it can be concluded that the FE analysis provides additional information with regard to the differences in fracture behaviour of these types of restorations.

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“…To understand the failure mechanisms as such within the tooth–restoration interfaces of both fixed‐fixed and cantilevered RBFPDs, three test modalities were used in this study (Figs 2 and 3) without a retentive preparation to avoid preparation influences. A simulation of cantilevered RBFPDs in a laboratory setup was studied previously 11,24,25 . Behr et al 18 have compared failure rates of three‐unit fixed‐fixed RBFPDs in vivo and in vitro with loads applied on the pontic with significantly higher failure rates for nonretentive anterior RBFPDs.…”

Section: Discussionmentioning

confidence: 99%

In Vitro Exploration and Finite Element Analysis of Failure Mechanisms of Resin‐Bonded Fixed Partial Dentures

Dalen

Feilzer

Kleverlaan

2008

Journal of Prosthodontics

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The low failure loads for the three-unit bent fixed-fixed RPFPDs, compared with their straight counterparts and the two-unit cantilevered RBFPDs, indicate that clinically a reserved attitude needs to be maintained with regard to three-unit fixed-fixed RBFPDs spanning a clearly curved part of the dental arch. The FEA results make it clear which part of the tooth restoration interface is subject to the highest stress levels, making it possible to design abutment preparations that avoid high interfacial stresses to help prevent debonding.

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Tensile peel failure of resin-bonded Ni/Cr beams: An experimental and finite element study

Cited by 18 publications

References 15 publications

Effect of bonded metal substrate area and its thickness on the strength and durability of adhesively bonded joints

Effect of bonded metal substrate area and its thickness on the strength and durability of adhesively bonded joints

Can internal stresses explain the fracture resistance of cusp‐replacing composite restorations?

In Vitro Exploration and Finite Element Analysis of Failure Mechanisms of Resin‐Bonded Fixed Partial Dentures

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