Metal‐Ceramic Alloys in Dentistry: A Review

Roberts, Howard W.; Berzins, David W.; Moore, B. Keith; Charlton, David

doi:10.1111/j.1532-849x.2008.00377.x

Cited by 146 publications

(96 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This chemical bond results from the suitable oxidation of metal and interdiffusion of ions between the metal and porcelain [2,19] and seems to play the most prominent role in the metal ceramic interface [1]. Thus, the success of the entire prosthesis depends largely on the physical properties of the metal substructure [26]. Probable factors affecting the interface of zirconia-based restorations include weak infiltration glass [9].…”

Section: Introductionmentioning

confidence: 98%

Confocal Raman microscopy and SEM/EDS investigations of the interface between the zirconia core and veneering ceramic: the influence of a liner and regeneration firing

Durand¹,

Jacquot²,

Salehi³

et al. 2012

J Mater Sci: Mater Med

View full text Add to dashboard Cite

The aim of this study was to evaluate the changes in the transition layer at the interface between yttria partial stabilized tetragonal zirconia polycrystalline (Y-TZP) core and veneering feldspathic ceramic (VITA VM(®)9), under different manufacturing methods. Confocal Raman microscopy and energy dispersive X-ray spectroscopy (EDS) analyses were carried out on tapered veneered cross sections of the interface. For some samples, an additional firing of the core was used, as the application of an optional liner material between the core and veneer. Single Raman spectra were distinguishable between Y-TZP and the veneering materials. VM(®)9 and liner spectra were broadly superimposable. No substantial differences appeared in their chemical elemental composition. 2D Raman images and EDS analysis emphasized changes in the interdiffusion thickness; the additional firing of the core decreased the interdiffusion zone, and the highest firing temperature of the liner increased the interdiffusion zone. These results, which will help us understand the changes in this transition layer, are discussed.

show abstract

Section: Introductionmentioning

confidence: 98%

Confocal Raman microscopy and SEM/EDS investigations of the interface between the zirconia core and veneering ceramic: the influence of a liner and regeneration firing

Durand¹,

Jacquot²,

Salehi³

et al. 2012

J Mater Sci: Mater Med

View full text Add to dashboard Cite

show abstract

“…Table 1 shows some representative types of dental alloys with densities ranging from 4.51 g/cm 3 for Ti to 19.3 g/cm 3 for pure Au. The vast majority of dental frameworks are produced by casting of precious and base metal alloys (Roberts et al 2009) with the exception of pure gold for use in dentistry, which employs an electroforming technique (Vence 1997). As can be expected from equation (1) and the density values of the base metal alloys in Table 1, lower levels of X-ray absorption facilitate X-ray penetration.…”

Section: X-ray Testingmentioning

confidence: 93%

“…Accordingly, different dental alloys can be penetrated by X-rays to different extents during testing. As stated above, various precious, semiprecious and base metal alloys are used in the dental field that have different elemental, mechanical and physical properties (Roberts et al 2009;Wataha 2002). Table 1 shows some representative types of dental alloys with densities ranging from 4.51 g/cm 3 for Ti to 19.3 g/cm 3 for pure Au.…”

Section: X-ray Testingmentioning

confidence: 99%

Applications of Current Technologies for Nondestructive Testing of Dental Biomaterials

Jabbari¹,

Zinelis²

2012

Nondestructive Testing Methods and New Applications

View full text Add to dashboard Cite

“…An all-ceramic system is currently a primary choice, although zirconiabased ceramic materials commonly used in restorative applications have poorer milling performance than metallic materials. In contrast, metal-ceramic systems show a good combination of aesthetics, mechanical rigidity, and machinability owing to the ceramic veneer and metallic framework [3,4]. For example, Co-Cr alloys are suitable restorative materials because they have excellent corrosion resistance and their components are less expensive than those of conventionally used Au-based alloys.…”

Section: Introductionmentioning

confidence: 99%

Effects of Carbon Addition on Mechanical Properties and Microstructures of Ni-Free Co–Cr–W-Based Dental Alloys

Yamanaka

Mori

Chiba

2015

Interface Oral Health Science 2014

View full text Add to dashboard Cite

We investigated the effects of carbon concentration on the microstructures and tensile properties of Ni-free Co-29Cr-9W-1Si-C (mass%) alloys used as disk materials in dental technology based on computer-aided design and computeraided manufacturing (CAD/CAM). The alloy specimens, which contained carbon in different concentrations, were prepared by conventional casting. The precipitates changed from intermetallic compounds in the low-carbon alloys, e.g., the σ and Laves phases, to M 23 C 6 -type carbide (M: metal) with increasing bulk carbon concentration. M 23 C 6 dramatically enhanced the 0.2 % proof stress, which then gradually increased with increasing carbon content in the alloys. The elongation-tofailure also increased with increasing carbon content. The coarse M 23 C 6 particles formed by higher concentrations of carbon were detrimental to ductility, however, and a maximum elongation-to-failure was obtained at a carbon concentration of 0.1 mass%. In addition, we applied hot-deformation processing to the cast-alloy specimens and revealed that compared to as-cast alloys, the hot-rolled alloys with added carbon showed an excellent combination of high strength and high ductility. The current study can thus aid in the design of biomedical, carbon-containing, Co-28Cr-9W-1Si-based alloys.

show abstract

Metal‐Ceramic Alloys in Dentistry: A Review

Cited by 146 publications

References 36 publications

Confocal Raman microscopy and SEM/EDS investigations of the interface between the zirconia core and veneering ceramic: the influence of a liner and regeneration firing

Confocal Raman microscopy and SEM/EDS investigations of the interface between the zirconia core and veneering ceramic: the influence of a liner and regeneration firing

Applications of Current Technologies for Nondestructive Testing of Dental Biomaterials

Effects of Carbon Addition on Mechanical Properties and Microstructures of Ni-Free Co–Cr–W-Based Dental Alloys

Contact Info

Product

Resources

About