Fatigue survival and failure resistance of titanium versus zirconia implant abutments with various connection designs

Şen, Nazmiye; Us, Yeşim Ölçer

doi:10.1016/j.prosdent.2019.05.036

Cited by 20 publications

(18 citation statements)

References 30 publications

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“…Future clinical long-term follow-ups are necessary to confirm the current in vitro results. The effect of the connection and abutment on the fatigue strength and assembly change is important for the maintaining of the interface, which wear is not always similar between titanium and zirconia materials (28). In addition, the type of abutment material and the connection design may affected the fit and the sealing capability of the different abutments (29).…”

Section: Discussionmentioning

confidence: 99%

Implant Volume Loss, Misfit, Screw Loosening, and Stress In Custom Titanium and Zirconia Abutments

et al. 2020

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The aim of this study was to verify the effect of the implant volume loss, vertical misfit between abutment and prosthetic platform, prosthetic screw loosening torque, and screw stress distribution in titanium and zirconia abutments. Ten CAD/CAM system custom abutments of each material were milled and attached to the titanium implants. The implant volume loss was evaluated by microtomography, the vertical misfit with optical microscopy, and digital torque wrench measured the prosthetic screw loosening. All experimental analyses were performed before and after mechanical cycle (1,000,000 cycles, 100 N/2 Hz). Virtual models of the structures were created for finite element analysis, and the stress on the screw obtained with von Mises procedure. Data were analyzed using an independent t-test, two-way ANOVA for repeated measures, and Tukey’s HSD test (a=0.05). There was no significant difference in the implant volume loss for the two abutment materials (p=0.662). Titanium abutments provided higher loosening torque values after mechanical cycling (p<0.001). Lesser marginal misfit was obtained with titanium abutments before and after mechanical cycling (p<0.001). The stress distribution on the screw was similar between abutment materials. In conclusion, CAD/CAM custom titanium abutment reduced the marginal misfit and increased the torque maintenance of prosthetic screws when compared to CAD/CAM custom zirconia abutment.

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Section: Discussionmentioning

confidence: 99%

Implant Volume Loss, Misfit, Screw Loosening, and Stress In Custom Titanium and Zirconia Abutments

et al. 2020

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“…Current results suggest that a large microgap or poor seating of the milled abutment, along with its high Young modulus, may result in deformation of the body of the implant (33). Sen et al (34) published that abutment material and connection design affect the fatigue survival of the implant-abutment assembly and that milled abutments have less resistance to failure than machined abutments, its results reported marginal misfit values in the range of 2.7-4.0μm for machined abutments and 1.8-5.3μm for machined abutments. Baixe et al (35) reported the size of the microgap in the range of 0.25 to 18.93μm for milled abutments with tri-channel connection.…”

Section: Discussionmentioning

confidence: 99%

Analysis of the Mechanical Behavior and Effect of Cyclic Fatigue on the Implant-Abutment Interface

Sandoval

Magdaleno

Robles

et al. 2020

Odovtos - Int J Dent Sc

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Purpose: The seal of the interface formed at the implant-abutment connection is essential for the long-term success of the implant-supported restoration. The aim of this study was to analyze the mechanical behavior and the effect of cyclic fatigue before and after in the marginal fit of implant-abutment according to the manufacturing technique of the abutment. Materials and methods: Machined titanium abutments (DENTIS), cast abutments with Nickel-Chromium alloy (VeraBond II), and manufacturing custom milled Zirconia abutments (Zirkonzahn) were evaluated. The implant-abutment assemblies were subjected to cyclic loads of 133 N at a frequency of 19.1 Hz for 200,000 cycles. The microgap was measured using Scanning Electronic Microscope and the distribution of compressive stress by the three-dimensional Finite Element (FE) method. Results: The microgap measurement values of the machined abutments were 1.62 μm and 1.92 μm, cast abutments were 14.14 μm, and 28.44 μm, and the milled abutments were 14.18 μm and 20.15 μm before and after cyclic fatigue, respectively. Only the cast abutments and the machined abutments showed a statistically significant difference before and after cyclic fatigue (p ≤ 0.05). The FE analysis showed that the critical areas of compressive stress were located at the implant-abutment connection, increasing in the cast abutments and decreasing in the milled and the machined abutments. Conclusion: Cyclic fatigue exerts an effect on the dimensions of the microgap at the implant-abutment interface before and after loading; this microgap depends of the type of abutment material and the manufacturing technique.

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“…tlenek cyrkonu, choć technologiczne możliwy do zastosowania, w praktyce ze względu na swoje właściwości mechaniczne, a w szczególności dużą twardość mógłby doprowadzić do zniszczenia struktury powierzchni implantu. 15,16 Tytanowe bazy zwiększają wytrzymałość łączników cyrkonowych. 16,17 Połączenie tytanowej bazy z elementem cyrkonowym wymaga odpowiedniego przygotowania powierzchni cyrkonu poprzez piaskownie i bonding obu powierzchni oraz zastosowanie odpowiedniego cementu.…”

Section: Omówienieunclassified

“…15,16 Tytanowe bazy zwiększają wytrzymałość łączników cyrkonowych. 16,17 Połączenie tytanowej bazy z elementem cyrkonowym wymaga odpowiedniego przygotowania powierzchni cyrkonu poprzez piaskownie i bonding obu powierzchni oraz zastosowanie odpowiedniego cementu. Wiadomo również, że połączenia cementu z tytanem są silniejsze niż z tlenkiem cyrkonu.…”

Section: Omówienieunclassified

Principles of designing and methods of fabricating screw-retained zirconia Ti-base crowns on implants

Kochanek-Leśniewska¹,

Oksiński²

2022

Prosthodontics

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Fatigue survival and failure resistance of titanium versus zirconia implant abutments with various connection designs

Cited by 20 publications

References 30 publications

Implant Volume Loss, Misfit, Screw Loosening, and Stress In Custom Titanium and Zirconia Abutments

Implant Volume Loss, Misfit, Screw Loosening, and Stress In Custom Titanium and Zirconia Abutments

Analysis of the Mechanical Behavior and Effect of Cyclic Fatigue on the Implant-Abutment Interface

Principles of designing and methods of fabricating screw-retained zirconia Ti-base crowns on implants

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