Effect of Bonding Agent on Metal‐Ceramic Bond Strength between Co‐Cr Fabricated with Selective Laser Melting and Dental Feldspathic Porcelain

2019 ◽  
Vol 28 (9) ◽  
pp. 1029-1036 ◽  
Author(s):  
Konstantinos Dimitriadis ◽  
Triantafillos Papadopoulos ◽  
Simeon Agathopoulos
Keyword(s):  
Bond Strength ◽  
Selective Laser Melting ◽  
Bonding Agent ◽  
Laser Melting ◽  
Ceramic Bond ◽  
Metal Ceramic ◽  
Feldspathic Porcelain

scholarly journals Mechanical Properties and Metal-Ceramic Bond Strength of Co-Cr Alloy Manufactured by Selective Laser Melting

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5745
Author(s):  
Joon-Ki Hong ◽  
Seong-Kyun Kim ◽  
Seong-Joo Heo ◽  
Jai-Young Koak
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Flexural Strength ◽  
Yield Strength ◽  
Bond Strength ◽  
Selective Laser Melting ◽  
Laser Melting ◽  
Three Point Bending ◽  
Ceramic Bond ◽  
Metal Ceramic

Cobalt–chromium (Co-Cr) metal is one of the widely used biomaterials in the fabrication of dental prosthesis. The purpose of this study was to investigate whether there are differences in the properties of metals and bond strength with ceramics depending on the manufacturing methods of Co-Cr alloy. Co-Cr alloy specimens were prepared in three different ways: casting, milling, and selective laser melting (SLM). The mechanical properties (elastic modulus, yield strength, and flexural strength) of the alloys were investigated by flexure method in three-point bending mode, and microstructures of the specimens were analyzed. After application of the veneering ceramic through the three-point bending test, bond strength of the Metal-Ceramic was investigated. The cracked surfaces were observed by means of energy dispersive X-ray (EDX) spectroscopy and scanning electron microscopy (SEM) with backscattered electron (BSE) images. In mechanical properties, the elastic modulus was highest for the casting group, and the yield strength and flexural strength were lowest for the milling group. The SLM group showed finer homogeneous crystalline-microstructure, and a layered structure was observed at the fractured surface. After the ceramic bond strength test, all groups showed a mixed failure pattern. The casting group showed the highest bond strengths, whereas there was no significant difference between the other two groups. However, all groups have met the standard of bond strength according to international standards organization (ISO) with the appropriate passing rate. The results of this study indicate that the SLM manufacturing method may have the potential to replace traditional techniques for fabricating dental prosthesis.

Effects of multiple firings on metal-ceramic bond strength of Co-Cr alloy fabricated by selective laser melting

2016 ◽  
Vol 115 (1) ◽  
pp. 109-114 ◽  
Author(s):  
Xiao-Wei Ren ◽  
Li Zeng ◽  
Zi-Ming Wei ◽  
Xian-Zhen Xin ◽  
Bin Wei
Keyword(s):  
Bond Strength ◽  
Selective Laser Melting ◽  
Laser Melting ◽  
Ceramic Bond ◽  
Metal Ceramic

Metal–ceramic bond strength of Co–Cr alloy fabricated by selective laser melting

2012 ◽  
Vol 40 (6) ◽  
pp. 453-457 ◽  
Author(s):  
Nan Xiang ◽  
Xian-Zhen Xin ◽  
Jie Chen ◽  
Bin Wei
Keyword(s):  
Bond Strength ◽  
Selective Laser Melting ◽  
Laser Melting ◽  
Ceramic Bond ◽  
Metal Ceramic

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

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4322
Author(s):  
Soo-Yoen Yoo ◽  
Seong-Kyun Kim ◽  
Seong-Joo Heo ◽  
Jai-Young Koak ◽  
Joung-Gyu Kim
Keyword(s):  
Bond Strength ◽  
Selective Laser Melting ◽  
Bonding Agent ◽  
Bending Test ◽  
Laser Melting ◽  
Type Specimens ◽  
Bonding Agents ◽  
Three Point Bending ◽  
Ceramic Bond ◽  
Before And After

Bonding agents have been developed to improve bond strength between ceramic and Co-Cr metal. The aim of this study was to investigate the influence of two bonding agents on bond strength of Co-Cr metal fabricated by selective laser melting (SLM). Bond strength was determined by a three-point bending test, and the interfaces of the metal and ceramic, before and after the bending test, were observed by optical microscopy and scanning electron microscopy (SEM) to determine the thickness of the oxide layer and amount of ceramic remaining. To analyze the elemental composition of the bonding agents and fractured surfaces, energy dispersive X-ray spectroscopy (EDS) was used. Co-Cr specimens with bonding agent showed significantly higher bond strength than Co-Cr specimens without bonding agents. The fractured surfaces of most specimens showed mixed failure, but failure mode varied according to bonding agent and fabrication type. Specimens from groups treated with bonding agents had significantly higher remaining ceramic fractions on fractured Co-Cr alloys than specimens from groups that did not receive bonding agent. Mass amounts of silicone (Si) and titanium (Ti) on the fractured alloy surfaces were also different among specimens according to method of fabrication and presence of bonding agent. Together, the results suggest that application of bonding agent to 3D printed Co-Cr metal increases bond strength with ceramics.

Effect of two opaquing techniques and two metal surface conditions on metal-ceramic bond strength

1995 ◽  
Vol 74 (1) ◽  
pp. 8-17 ◽  
Author(s):  
Philip C. Rake ◽  
Charles J. Goodacre ◽  
B. Keith Moore ◽  
Carlos A. Munoz
Keyword(s):  
Bond Strength ◽  
Metal Surface ◽  
Surface Conditions ◽  
Ceramic Bond ◽  
Metal Ceramic
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