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

Mohamed M. Aboras; A. Muchtar; C.H. Azhari; N. Yahaya

doi:10.4028/www.scientific.net/AMM.575.22

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 575Type of Failure of Zirconia-Based Ceramics in...

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

Abstract:

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 ZrO₂ frameworks and veneers, 18% of which had cracks, and 7% of which had shade defects. Although ZrO₂ is 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.

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Periodical:

Applied Mechanics and Materials (Volume 575)

Pages:

22-25

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.575.22

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Online since:

June 2014

Authors:

Mohamed M. Aboras*, A. Muchtar, C.H. Azhari, N. Yahaya

Keywords:

Dental Restoration, Fracture, Porcelain Fused to Metal Restoration, Zirconia

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