Comparison of shear bond strength of two veneering ceramics to zirconia

Rismanchian, Mansour; Shafiei, Soufia; Askari, Navid; Khodaeian, Niloufar

doi:10.4103/1735-3327.104885

Cited by 7 publications

(4 citation statements)

References 33 publications

(55 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, it can be recommended to choose the shade of composite resin core material according to the final color of the restoration. Although the substrate-induced color changes may be reduced by increasing the thickness of zirconia frameworks,[ 30 31 ] using suitable thickness of porcelain veneers,[ 32 33 ] and application of acceptable luting agents in zirconia-based restorations,[ 34 ] incorrect substrate shade selection may increase the possibility of a color mismatch.…”

Section: Discussionmentioning

confidence: 99%

Masking ability of a zirconia ceramic on composite resin substrate shades

et al. 2017

View full text Add to dashboard Cite

Background:Masking ability of a restorative material plays an important role to cover discolored tooth structure; however, this ability has not yet been well understood in zirconia-based restorations. This study assessed the masking ability of a zirconia ceramic on composite resin substrates with different shades.Materials and Methods:Ten zirconia disc specimens, with 0.5 mm thickness and 10 mm diameter, were fabricated by a computer-aided design/computer-aided manufacturing system. A white substrate (control) and six composite resin substrates with different shades including A1, A2, A3, B2, C2, and D3 were prepared. The substrates had a cylindrical shape with 10 mm diameter and height. The specimens were placed onto the substrates for spectrophotometric evaluation. A spectrophotometer measured the L*, a*, and b* values for the specimens. ΔE values were calculated to determine the color differences between the groups and the control and then were compared with a perceptional threshold (ΔE = 2.6). Repeated measures ANOVA and Bonferroni tests were used for data analysis (P < 0.05).Results:The mean and standard deviation of ΔE values for A1, A2, A3, B2, C2, and D3 groups were 6.78 ± 1.59, 8.13 ± 1.66, 9.81 ± 2.64, 9.61 ± 1.38, 9.59 ± 2.63, and 8.13 ± 1.89, respectively. A significant difference was found among the groups in the ΔE values (P = 0.006). The ΔE values were more than the perceptional threshold in all the groups (P < 0.0001).Conclusion:Within the limitations of this study, it can be concluded that the tested zirconia ceramic could not thoroughly mask different shades of the composite resin substrates. Moreover, color masking of zirconia depends on the shade of substrate.

show abstract

Section: Discussionmentioning

confidence: 99%

Masking ability of a zirconia ceramic on composite resin substrate shades

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The two Biodenta papers were, however, in vitro trials that evaluated the company’s CAD/CAM (computer-aided design/computer-aided manufacturing) system, not the clinical outcome of the implants [7,8]. Broadening the search by deleting “dental implants” and only using the respective company name did not identify any publications for the Cumdente system but one additional paper for the Biodenta system [9]. However, this paper did not report on the clinical outcome of implants.…”

Section: Resultsmentioning

confidence: 99%

On the Cleanliness of Different Oral Implant Systems: A Pilot Study

Duddeck

Albrektsson

Wennerberg

et al. 2019

JCM

View full text Add to dashboard Cite

(1) Background: This paper aimed to compare the cleanliness of clinically well-documented implant systems with implants providing very similar designs. The hypothesis was that three well-established implant systems from Dentsply Implants, Straumann, and Nobel Biocare were not only produced with a higher level of surface cleanliness but also provided significantly more comprehensive published clinical documentation than their correspondent look-alike implants from Cumdente, Bioconcept, and Biodenta, which show similar geometry and surface structure. (2) Methods: Implants were analyzed using SEM imaging and energy-dispersive X-ray spectroscopy to determine the elemental composition of potential impurities. A search for clinical trials was carried out in the PubMed database and by reaching out to the corresponding manufacturer. (3) Results: In comparison to their corresponding look-alikes, all implants of the original manufacturers showed—within the scope of this analysis—a surface free of foreign materials and reliable clinical documentation, while the SEM analysis revealed significant impurities on all look-alike implants such as organic residues and unintended metal particles of iron or aluminum. Other than case reports, the look-alike implant manufacturers provided no reports of clinical documentation. (4) Conclusions: In contrast to the original implants of market-leading manufacturers, the analyzed look-alike implants showed significant impurities, underlining the need for periodic reviews of sterile packaged medical devices and their clinical documentation.

show abstract

“…Zirconia oxide stabilized with an addition of yttrium oxide results in a high strength, high elastic modulus and better fracture toughness [6] . The technique involves investing of wax pattern in a refractory material, which is preheated and transferred to a specially designed press furnace [7] . The present study compared the shear bond strength of ceramic material veneered to zirconia core by layering and pressing techniques.…”

Section: Introductionmentioning

confidence: 99%

Shear bond strength of ceramic material veneered to zirconia core by layering and pressing techniques

Jabeen¹,

Bali²,

Thakur³

2022

Int. J. Appl. Dent. Sci.

View full text Add to dashboard Cite

Background: The advantages of the PFM systems are to combine the fracture resistance of the metal substructure with the aesthetic property of the porcelain. The present study compared the shear bond strength of ceramic material veneered to zirconia core by layering and pressing techniques. Materials and Methods: 50 samples of zirconia blocks were divided into 2 groups. Each group consisted of 25 samples. In group I, ceramic veneered over zirconia core by pressing technique and in group II, ceramic veneered over zirconia core by layering technique was used. The blocks were loaded up to failure which was assessed using universal testing machine. Results: The mean shear bond strength in group I was 13.4 MPa and in group II was 9.2 MPa. The difference found to be significant (P< 0.05). Conclusion:The mean shear bond strength of specimens veneered on to zirconia core by pressing technique performed was superior in comparison to the layered specimen.

show abstract

Comparison of shear bond strength of two veneering ceramics to zirconia

Cited by 7 publications

References 33 publications

Masking ability of a zirconia ceramic on composite resin substrate shades

Masking ability of a zirconia ceramic on composite resin substrate shades

On the Cleanliness of Different Oral Implant Systems: A Pilot Study

Shear bond strength of ceramic material veneered to zirconia core by layering and pressing techniques

Contact Info

Product

Resources

About