Phase identification in dental porcelains for ceramo-metallic restorations

Barreiro, Marcos; Rlesgo, O.; Vicente, E. E.

doi:10.1016/0109-5641(89)90094-8

Cited by 37 publications

(22 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These cracks are related to the large mismatch between the thermal expansion coefficient of the leucite and the glassy matrix, which creates stresses around the leucite particles and clusters when the porcelain is cooled. These tensile stresses (oriented normally to the particle surface), and compressive stresses (oriented tangentially to the particle surface) are partially relieved by twinning of the leucite, 25 and by formation of the microcracks in and around the crystals. 4 The formation of such microcracks has many implications in the material's behavior, since they partially separate or decouple the leucite from the surrounding matrix, reducing the influence of the crystalline phase on the bulk thermal expansion coefficient of the porcelain.…”

Section: Discussionmentioning

confidence: 98%

Correlation between fracture toughness and leucite content in dental porcelains

César

Yoshimura

Júnior

et al. 2005

Journal of Dentistry

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 98%

Correlation between fracture toughness and leucite content in dental porcelains

César

Yoshimura

Júnior

et al. 2005

Journal of Dentistry

View full text Add to dashboard Cite

“…However, sanidine does not appear when the porcelain is heated to 980°C, since sanidine is metastable in the temperature range 500-925°C. The precipitation of sanidine has been reported as well upon isothermal heat treatment of conventional feldspathic porcelain for metal-ceramics (Mackert et al, 1986b;Mackert, 1988;Barreiro et al, 1989). An isothermal timetemperature-transformation diagram that makes it possible to predict the amount of leucite and sanidine in samples subjected to different thermal histories has been established (Barreiro and Vicente, 1993).…”

Section: Leucite-reinforced Feldspathic Porcelainmentioning

confidence: 99%

Recent Advances in Ceramics for Dentistry

1996

Critical Reviews in Oral Biology & Medicine

163

View full text Add to dashboard Cite

For the last ten years, the application of high-technology processes to dental ceramics allowed for the development of new materials such as heat-pressed, injection-molded, and slip-cast ceramics and glass-ceramics. The purpose of the present paper is to review advances in new materials and processes available for making all-ceramic dental restorations. Concepts on the structure and strengthening mechanisms of dental ceramics are provided. Major developments in materials for all-ceramic restorations are addressed. These advances include improved processing techniques and greater mechanical properties. An overview of the processing techniques available for all-ceramic materials is given, including sintering, casting, machining, slip-casting, and heat-pressing. The most recent ceramic materials are reviewed with respect to their principal crystalline phases, including leucite, alumina, forsterite, zirconia, mica, hydroxyapatite, lithium disilicate, sanidine, and spinel. Finally, a summary of flexural strength data available for all-ceramic materials is included.

show abstract

“…One area in which ceramic materials have been extensively used is dentistry, in which ceramics are used for crowns, inlays, onlays, bridgeworks, dentures and veneers due to their close mimicry of natural teeth materials. [4][5][6] In these applications, it is often required that the ceramic structures possess satisfactory combinations of color, strength, opacity, durability and accuracy, which poses a challenge for the manufacturing processes. Current manufacturing techniques for many ceramic dental prostheses structures either lack sufficient quality control due to the inability to deal with complex geometries, or require extensive labor-intensive processes.…”

Section: Introductionmentioning

confidence: 99%

Process Development of Porcelain Ceramic Material with Binder Jetting Process for Dental Applications

Miyanaji¹,

Zhang²,

Lassell³

et al. 2016

JOM

View full text Add to dashboard Cite

Custom ceramic structures possess significant potentials in many applications such as dentistry and aerospace where extreme environments are present. Specifically, highly customized geometries with adequate performance are needed for various dental prostheses applications. This paper demonstrates the development of process and post-process parameters for a dental porcelain ceramic material using binder jetting additive manufacturing (AM). Various process parameters such as binder amount, drying power level, drying time and powder spread speed were studied experimentally for their effect on geometrical and mechanical characteristics of green parts. In addition, the effects of sintering and printing parameters on the qualities of the densified ceramic structures were also investigated experimentally. The results provide insights into the process-property relationships for the binder jetting AM process, and some of the challenges of the process that need to be further characterized for the successful adoption of the binder jetting technology in high quality ceramic fabrications are discussed.

show abstract

Phase identification in dental porcelains for ceramo-metallic restorations

Cited by 37 publications

References 12 publications

Correlation between fracture toughness and leucite content in dental porcelains

Correlation between fracture toughness and leucite content in dental porcelains

Recent Advances in Ceramics for Dentistry

Process Development of Porcelain Ceramic Material with Binder Jetting Process for Dental Applications

Contact Info

Product

Resources

About