Effects of Bonding Agents on Metal-Ceramic Bond Strength of Co-Cr Alloys Fabricated by Selective Laser Melting

Yoo, Soo-Yeon; Kim, Seong-Kyun; Heo, Seong‐Joo; Koak, Jai‐Young; Kim, Joung-Gyu

doi:10.3390/ma13194322

Cited by 13 publications

(10 citation statements)

References 48 publications

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“…The oxide layer formed during the oxidation process influences the bond strength of the metal-ceramic system [ 21 , 22 ]. The formation of metal oxides during the oxidation process varies depending on the alloy, the surface finishing technique, and the length of the oxidation process [ 23 , 24 ].…”

Section: Discussionmentioning

confidence: 99%

An In Vitro Study on the Shear Bond Strength of Feldspathic Porcelain to Nickel Chromium Alloy and Cobalt Chromium Alloy after Various Surface Treatments

Kamath

Kamath²,

Bhargava

et al. 2022

International Journal of Dentistry

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Background. To evaluate and compare the shear bond strength of feldspathic porcelain to four distinctively surface-treated Ni-Cr and Co-Cr alloys and to assess the impact of oxidation-heat treatment on porcelain to base metal alloy bond strength. Methods. 40 specimens each of nickel-chromium alloy and cobalt-chromium alloy were cast. A total of four groups of specimens were created. Group I was surface-treated by sandblasting with 50 μm alumina particles, Group II was surface-treated by sandblasting with 110 μm alumina particles, Group III and Group IV were surface-treated with 250 μm alumina particles. In Group IV, after sandblasting initially with 250 μm alumina particles, the alloys were subjected to oxidation and resandblasting with 250 μm alumina particles. Each of the specimen was coated with opaque and body porcelain and fired to a total thickness of 2 mm porcelain. A universal measuring machine was used to assess shear bond strength at a crosshead speed of 0.5 mm/min. Results. Two-way ANOVA followed by Tukey’s post hoc test was used to assess the significant difference within the groups. Unpaired t-test was used for the intergroup comparison of the obtained data. The study showed that the size of the air abrasion particles used for sandblasting significantly influenced the porcelain to metal surface bond strength, with p value <0.001. The bond strength values of the two alloys tested showed no major variations. Result also showed that oxidation influences the metal-ceramic bond strength. Conclusions. The bond strength of the metal-ceramic interface is influenced by the alloy’s surface treatment. The oxidation process impacts the bond strength of the metal-ceramic system.

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Section: Discussionmentioning

confidence: 99%

An In Vitro Study on the Shear Bond Strength of Feldspathic Porcelain to Nickel Chromium Alloy and Cobalt Chromium Alloy after Various Surface Treatments

Kamath

Kamath²,

Bhargava

et al. 2022

International Journal of Dentistry

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“…Opaque ceramics are combined with metal alloys through an oxide layer formed on the metal surface. This process is called degassing [36]. The degassing process can also remove contaminants on the surface of the alloy-coating dentin/body ceramics on opaque ceramics.…”

Section: Alloymentioning

confidence: 99%

The Application of Zirconia in Tooth Defects

Luo¹,

Luo²,

Li³

et al. 2022

Clinical Concepts and Practical Management Techniques in Dentistry

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Dental caries is among the most prevalent chronic diseases of childhood, affecting larger part of children and adults. Non-treated enamel caries can lead to destruction and then spreads into the underlying softer and sensitive dentine layer. Dental restorative materials are applied to treat and reconstruct damaged teeth clinically and recover their functions. Currently, there are various dental restorative materials available, and many appropriate materials are used to restore dental carious teeth. The applicability of biomimetic principles can elicit innovations in restorative dentistry for tooth conservation and preservation. There are three types of materials commonly used in dental restorations: resin, alloys, and ceramic. During the past decade, zirconia-based ceramics have been successfully introduced into the clinic due to acceptable biocompatibility, lower price compared with gold restorations, and better appearance than traditional metal-ceramic restorations. Recently, zirconia restoration is an acceptable treatment option in restorative dentistry and a developing trend in esthetic dentistry.

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“…It is believed that the polished surface will provide better ceramic adhesion (12). However, some surface roughness is effective in increasing adhesion (13). In metal-ceramic restoration production, technicians prepare the alloy for ceramic veneering.…”

Section: Introductionmentioning

confidence: 99%

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

Kara

2022

Sağlık Bilimlerinde Değer

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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.

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Effects of Bonding Agents on Metal-Ceramic Bond Strength of Co-Cr Alloys Fabricated by Selective Laser Melting

Cited by 13 publications

References 48 publications

An In Vitro Study on the Shear Bond Strength of Feldspathic Porcelain to Nickel Chromium Alloy and Cobalt Chromium Alloy after Various Surface Treatments

An In Vitro Study on the Shear Bond Strength of Feldspathic Porcelain to Nickel Chromium Alloy and Cobalt Chromium Alloy after Various Surface Treatments

The Application of Zirconia in Tooth Defects

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

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