Effect of surface treatment of milled cobalt–chromium alloy on shear bond strength to porcelain

Hamza, Ghada E; Sallam, Hanaa I.; Eldwakhly, Elzahraa

doi:10.4103/jasmr.jasmr_24_19

Cited by 5 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sandblasting with 110 μg Al2O3 caused different changes in the surface texture than grinding treatments, as shown in the microscopic images. A similar result was found by Kunt et al concluded that base metal alloys were maximally roughened by blasting more than any other surface treatment tested (14).…”

Section: Discussionsupporting

confidence: 85%

See 1 more Smart Citation

Metal-Seramik Diş Restorasyonlarının Üretiminde Farklı Yüzey İşlemlerinin Makaslama Bağlanma Dayanımına Etkilerinin Araştırılması

Kara

2022

Sağlık Bilimlerinde Değer

View full text Add to dashboard Cite

Aim:The bond strength between metal and porcelain is an essential factor for the success of metal-ceramic restorations. Therefore, this study evaluated the shear bond strength (SBS) between ceramic and cobalt-chromium (Co-Cr) alloys after oxidation treatment. Material and Methods: A total of 150 Co-Cr samples, 50 samples each, were produced from casting, laser sintering, and milling techniques. The primary group samples produced were divided into five subgroups. One of the subgroups is sandblasted with 110 µm Al2O3, and the others are ground with carbon separator disc, sintered diamond bur, tungsten carbide bur, and pink stone in one direction. SBS test was applied after the oxidation and veneering process. After debonding, digital microscopy investigated the surface characterizations of Co-Cr alloys. For the normality distribution of SBS measurements, the Kolmogorov-Smirnov test was used. According to the results, non-parametric tests were used in the study because the distribution was not suitable for the normal distribution, and the number of samples within the group was low in the subgroups. Kruskal Wallis and All pair-wise post hoc test (α = 0.05) were used for analysis. Results: There was a statistical difference between the laser sintering and milling groups according to the fabrication techniques. The highest SBS value was found in the Al2O3 laser group (34.35) and the lowest in the Al2O3 casting group (17.68). Surface treatments significantly altered ceramic adhesion. Almost all subgroups exhibited mixed failure. All of the SBS values found in this study were almost clinically acceptable. Conclusion: As different abrasives in the leveling and finishing of metal substructures may affect the metal-ceramic bonding, care should be taken in their use as much as possible.

show abstract

Section: Discussionsupporting

confidence: 85%

“…There is no definitive method to evaluate metal and ceramic SBS in the literature. The shear test is highly reliable in SBS evaluation due to minimal experimental variables and less residual stress (14). This is why the SBS test was used in this study.…”

Section: Discussionmentioning

confidence: 99%

Metal-Seramik Diş Restorasyonlarının Üretiminde Farklı Yüzey İşlemlerinin Makaslama Bağlanma Dayanımına Etkilerinin Araştırılması

Kara

2022

Sağlık Bilimlerinde Değer

View full text Add to dashboard Cite

show abstract

“…Increasing the wettability of the metal by porcelain and regulating the thickness of the oxide layer are the two crucial parameters that have been proposed to improve the bonding between the base metal alloys and porcelain. Sandblasting, oxidation heat treatment, laser etching, acid etching, bonding agent application, mechanical roughness with carbide burs or diamond tips, and a combination of surface treatments are among the surface treatments recommended for porcelain-fused-to-metal prostheses ( Hamza et al, 2019 ).…”

Section: Surface Conditioning In Dental Laboratorymentioning

confidence: 99%

Adhesion concepts and techniques for laboratory-processed indirect dental restorations

Alsadon

2022

The Saudi Dental Journal

View full text Add to dashboard Cite

“…It is important to mention that the trend to eliminate the use of CoCr and NiCr, due to toxicological risks evidenced in the EU regulations, has a relatively slow rate, and nowadays, more evaluations of their ion release are taking place [67]. Simultaneously with alternative strategies to reduce the risk of heavy metals for dental health, improving the quality of the CoCr alloys by changing their surface composition using coatings [68], new advanced technologies in obtaining CoCr for alloys have been tested [69,70].…”

Section: Trends In Enhancing Coatings Performances On Cocr Alloys and Other Metallic Alloys (Including High-entropy Alloys)mentioning

confidence: 99%

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

2021

View full text Add to dashboard Cite

Starting with a description of the meaning of sustainable coating nowadays, this review presents a selection of methods for sustainable coatings manufacture using raw materials, saving energy and costs. This selection creates an introduction for the coatings performances of intensively investigated coated alloys and their multifunctionality. There are many examples and EU recommendations to be discussed, and we especially chose to introduce sustainable coatings with both industrial and medical functions, such as bioinspired films and coatings on high-entropy alloys, biodegradable metallic alloys, etc. A special focus is on nanotechnology and nanomaterials in green procedures, enhancing coatings’ multifunctionality, introducing green corrosion inhibitors, smart additives, and coatings based on superhydrophobicity. The conclusions and future perspectives of sustainable and multifunctional coatings, as expressions of sustainable advanced materials, are based on important motivations of such studies.

show abstract

Effect of surface treatment of milled cobalt–chromium alloy on shear bond strength to porcelain

Cited by 5 publications

References 1 publication

Metal-Seramik Diş Restorasyonlarının Üretiminde Farklı Yüzey İşlemlerinin Makaslama Bağlanma Dayanımına Etkilerinin Araştırılması

Metal-Seramik Diş Restorasyonlarının Üretiminde Farklı Yüzey İşlemlerinin Makaslama Bağlanma Dayanımına Etkilerinin Araştırılması

Adhesion concepts and techniques for laboratory-processed indirect dental restorations

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

Contact Info

Product

Resources

About