Effect of masticatory simulation on the translucency of different types of dental zirconia

Alraheam, Islam Abd; Donovan, Terry; Rodgers, Brandon; Boushell, Lee W.; Sulaiman, Taiseer A.

doi:10.1016/j.prosdent.2019.02.002

Cited by 21 publications

(22 citation statements)

References 22 publications

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“…However, it is worthy of note, that all the demonstrated ΔE values in all the groups were not clinically significant, at (ΔE < 3.3). This is in agreement with Alraheam et al [20].…”

Section: Discussionsupporting

confidence: 93%

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The Effect of Thermocycling on the Translucency and Color Stability of Modified Glass Ceramic and Multilayer Zirconia Materials

Aljanobi

Al-Sowygh

2020

Cureus

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“…However, it is worthy of note, that all the demonstrated ΔE values in all the groups were not clinically significant, at (ΔE < 3.3). This is in agreement with Alraheam et al [20].…”

Section: Discussionsupporting

confidence: 93%

“…Yu et al used 3 mm while in the current study a 5 mm aperture was used for the measurement [19]. Other factors for difference in TP can be attributed to specimen thickness, sintering procedure, the different values of the white and black background used as well as the measuring devices [17,[20][21].…”

Section: Discussionmentioning

confidence: 88%

The Effect of Thermocycling on the Translucency and Color Stability of Modified Glass Ceramic and Multilayer Zirconia Materials

Aljanobi

Al-Sowygh

2020

Cureus

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“…Several strategies have been developed to overcome ceramic complications such as chipping. These include gradual improvements to the translucency and color of zirconia, which makes it possible to use the material without a veneer . The elimination of the veneer reduces the technical effort involved in the fabrication of zirconia restorations and their susceptibility to technical complications .…”

Section: Introductionmentioning

confidence: 99%

Three‐year clinical performance of monolithic and partially veneered zirconia ceramic fixed partial dentures

Habibi

Dawid

Waldecker

et al. 2020

J Esthet Restor Dent

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Objective: To compare the 3-year survival and success rates of monolithic (M) and partially veneered (PV) zirconia-fixed partial dentures (FPDs). Materials and Methods:Sixty-seven FPDs (n = 33 M-FPDs; n = 34 PV-FPDs) were placed in 51 patients (n = 23 males; mean age 61.5 years) and clinically followed up 1 week, 6 months, and then yearly after placement. One hundred per cent (100%) of M-FPDs and 70% of PV-FPDs were located in the posterior region. Ninety-two per cent (92%) of M-FPDs had three units, whereas 50% of PV-FPDs had more than three units.A facial veneer was present in 73% of the PV-FPDs units. Survival and success were calculated using the Kaplan-Meier method and compared using the log-rank test (α = .05). Results: The mean observation period was 3.5 years for M-FPDs and 3.1 years for PV-FPDs. Most complications associated with FPDs were biological in nature. Ceramic defects occurred exclusively among PV-FPDs. Three-year survival was 96.7% for M-FPDs and 93.8% for PV-FPDs (P = .064). Three-year success was 93.8% for M-FPDs and 81.7% for PV-FPDs (P = .039). Conclusions: The use of both M-FPDs and PV-FPDs yielded clinically successful results over a mean period of 3 years.Clinical Significance: By using monolithic or facially veneered zirconia, ceramic FPDs could be fabricated which showed only a minimum of technical complications over the period of investigation without sacrificing adequate esthetics.

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“…To the present, such laboratory data, subjecting ready to be delivered dental reconstructions to aging and loading conditions closely approximating clinical reality, is not available for multi-unit fixed dental prostheses made from different and market-available zirconia grades. Available studies are addressing the connector design and embrasure shaping method [16], evaluating the stress distribution using finite element analysis [17], marginal and internal fit [18], optical characteristics [19][20][21], the effect of speed sintering [22], or mechanical properties of implant supported anterior FDPs [23]. Of these studies, only a single one investigated the fracture resistance of anatomically shaped tooth-supported FDPs, however not dynamically loading or hydrothermally aging the samples [16].…”

Section: Introductionmentioning

confidence: 99%

“…Results are shown as Average ± Standard Deviation. Results are shown as Average ± Standard Deviation (according to formula of Garvie et al[20] that was modified by Toraya et al[21]).…”

mentioning

confidence: 99%

Reliability and aging behavior of three different zirconia grades used for monolithic four-unit fixed dental prostheses

et al. 2020

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Objective: To investigate the fracture resistance and phase composition of tooth supported fourunit fixed dental prostheses (FDPs) made from three different zirconia grades after loading and aging.Methods: Seventy-two FDPs were fabricated from 3Y-TZP, 4Y-PSZ and 5Y-PSZ. This resulted in 24 FDPs per grade, subdivided into three groups (n=8): a control group (C), a hydrothermally aged (H2O, 85°C, 90 days) group (A) and a group subjected to loading (2.5M cycles, 98N) with simultaneous thermal cycling (H2O, 5-55°C) subsequent to treatment A (AL). Subsequently, FDPs were statically loaded to fracture. Phase composition was quantified by X-ray diffraction (XRD) and µ-Raman spectroscopy. Focused ion beam (FIB) -Scanning electron microscopy (SEM) was used for visualization in-depth.Results: Compared to 3Y-C FDPs (1233±165N), reduced fracture load was found for 5Y-C FDPs (889±80N; p<.001). This did not apply for 4Y-C samples (1065±111N). Treatments (A, AL) did not negatively affect the fracture load for the three grades of zirconia (p>.645). Both A and AL increased monoclinic phase content for 3Y and 4Y FDPs, whereas FIB-SEM suggests no transformability of 5Y-PSZ. 5Y-AL FDPs showed cracks and fractures at the abutment walls and restoration margins after dynamic loading. Reduced fracture load of 5Y samples as compared to 3Y and 4Y was associated with deficient transformability in the fracture zone.Significance: Aging and loading did not negatively affect the fracture resistance of monolithic four-unit FDPs made from three grades of zirconia. Due to cracks after dynamic loading, 5Y-PSZ cannot be recommended for the clinical application of four-unit FDPs.

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Effect of masticatory simulation on the translucency of different types of dental zirconia

Cited by 21 publications

References 22 publications

The Effect of Thermocycling on the Translucency and Color Stability of Modified Glass Ceramic and Multilayer Zirconia Materials

The Effect of Thermocycling on the Translucency and Color Stability of Modified Glass Ceramic and Multilayer Zirconia Materials

Three‐year clinical performance of monolithic and partially veneered zirconia ceramic fixed partial dentures

Reliability and aging behavior of three different zirconia grades used for monolithic four-unit fixed dental prostheses

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