Mechanical properties of a permanent dental restorative material based on calcium aluminate

2003 ◽  
Vol 14 (12) ◽  
pp. 1033-1037 ◽  
Author(s):  
J. Loof ◽  
H. Engqvist ◽  
N.-O. Ahnfelt ◽  
K. Lindqvist ◽  
L. Hermansson
Keyword(s):  
Mechanical Properties ◽  
Calcium Aluminate ◽  
Restorative Material ◽  
Dental Restorative

A Review of the Low-Temperature Degradation of Dental Zirconia

2014 ◽  
Vol 606 ◽  
pp. 85-88
Author(s):  
Mohamed M. Aboras ◽  
Kai Yuan Theng ◽  
Andanastuti Muchtar ◽  
Che Husna Azhari ◽  
Norziha Yahaya
Keyword(s):  
Mechanical Properties ◽  
Optical Properties ◽  
Low Temperature ◽  
Tetragonal Zirconia ◽  
Dental Restoration ◽  
Restorative Material ◽  
Dental Restorations ◽  
Biological Compatibility ◽  
Oral Environment ◽  
Dental Restorative

The use of tetragonal zirconia as a dental restorative material has recently increased because of its unique mechanical and optical properties, as well as high biological compatibility with the oral cavity environment. However, the mechanical properties of zirconia can be severely degraded, which leads to the failure of dental restorations. This review focuses on the low-temperature degradation of dental zirconia and its effects on the properties of zirconia and on the oral environment. The purpose is to show the importance of this negative phenomenon and suggest guidelines for minimizing the aging of zirconia that is used as a dental restoration material.

Type of Failure of Zirconia-Based Ceramics in Dental Laboratory in Misurata, Libya

2014 ◽  
Vol 575 ◽  
pp. 22-25
Author(s):  
Mohamed M. Aboras ◽  
A. Muchtar ◽  
C.H. Azhari ◽  
N. Yahaya
Keyword(s):  
Mechanical Properties ◽  
Core Material ◽  
Restorative Material ◽  
Suitable Material ◽  
Dental Restorations ◽  
Type Of Failure ◽  
Dental Restorative ◽  
Failure Types

Zirconia (ZrO2) is used to fix restorations as a core material because of its mechanical properties, aesthetics, and compatibility. This study aims to analyze the failure types in ZrO2-based restoration fabricated in a dental laboratory in Misurata, Libya. Data were collected from laboratory records for a 30-day period with follow-up for five months. About 6% of the total restorations had defects with different percentages, 46% of which were fractures, 29% of which had weak bonding between ZrO2frameworks and veneers, 18% of which had cracks, and 7% of which had shade defects. Although ZrO2is a suitable material for dental restorations, defects may occur and lead to the failure of dental restorations. A thorough study is necessary to analyze the cause of failurein zirconia-based restorationsand to improve the properties to produce a versatile dental restorative material.

Transmittance of a bioceramic dental restorative material based on calcium aluminate

2004 ◽  
Vol 69B (1) ◽  
pp. 94-98 ◽  
Author(s):  
Håkan Engqvist ◽  
Jesper Lööf ◽  
Stina Uppström ◽  
Mike W. Phaneuf ◽  
Jacob C. Jonsson ◽  
...  
Keyword(s):  
Calcium Aluminate ◽  
Restorative Material ◽  
Dental Restorative

The Influence of Condensing Technique and Accelerator Concentration on Some Mechanical Properties of an Experimental Bioceramic Dental Restorative Material

2003 ◽  
Vol 254-256 ◽  
pp. 197-200
Author(s):  
Jesper Lööf ◽  
Hakan Engqvist ◽  
Gunilla Gómez-Ortega ◽  
Nils Otto Ahnfelt ◽  
Leif Hermansson
Keyword(s):  
Mechanical Properties ◽  
Restorative Material ◽  
Dental Restorative

scholarly journals Mechanical properties of dental restorative materials: relative contribution of laboratory tests

2003 ◽  
Vol 11 (3) ◽  
pp. 162-167 ◽  
Author(s):  
Linda Wang ◽  
Paulo Henrique Perlatti D'Alpino ◽  
Lawrence Gonzaga Lopes ◽  
José Carlos Pereira
Keyword(s):  
Mechanical Properties ◽  
Laboratory Tests ◽  
Clinical Performance ◽  
Dental Materials ◽  
Correct Selection ◽  
Relative Contribution ◽  
Dental Restorative Materials ◽  
Restorative Materials ◽  
Dental Restorative ◽  
Selection Of

A wide variety of dental products that are launched on the market becomes the correct selection of these materials a difficult task. Although the mechanical properties do not necessarily represent their actual clinical performance, they are used to guide the effects of changes in their composition or processing on these properties. Also, these tests might help somehow the clinician to choose once comparisons between former formulations and new ones, as well as, with the leading brand, are highlighted by manufactures. This paper presents a review of the most important laboratory tests. In this manner, the knowledge of these tests will provide a critical opinion related to the properties of different dental materials.

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