Microstructural Aspects of the Captek Alloy for Porcelain‐Fused‐to‐Metal Restorations

Metal‐Ceramic Interface Evaluation of a Gold‐Infiltrated Alloy

“…A possible explanation for this might be incomplete infiltration of gold (Captek G) into the porous network rendered after the Captek P material is fired, resulting in an internal microstructure with voids or pores. As discussed previously, a porous network has been noted in other noncast metal‐ceramic restorations, 5 although it was not reported in the study on Captek mentioned earlier 15 . Past research has shown substantial decreases in the elastic modulus and strength with increased porosity in a powder metallurgy‐based alloy 31 .…”

Precious metal alloys for dental applications

“…The alloy is approximately 22-K gold with minor additions of platinum and palladium. The platinum forms a very thin matrix structure, as thin as 50 μ m, for the gold infused coping to add dental porcelain (Zappala et al , 1996). The lack of oxide formation results in avoidance of gray color, enhancing the esthetic capabilities of the system.…”

Metal‐Ceramic Alloys in Dentistry: A Review

“…A proprietary bonding agent, which purportedly provides bonding between the gold and porcelain, is then applied. Although Captek technology has been available since 1995, there is surprisingly little peer‐reviewed scientific literature (other than abstracts) reporting on the technology 54–56 . A manufacturer‐supported graduate study was completed in 1995, 57 but data from this thesis have apparently not been reported in the scientific peer‐reviewed literature.…”