Clinical fractures of veneered zirconia single crowns.
Copyright policy )Clinical fractures of veneered zirconia single crowns.
Crowns made from an yttria-stabilized tetragonal zirconia polycrystals (3Y-TZP) core with a porcelain veneer have shown high clinical failure rates. Manifestations of clinical failure in veneering ceramic ranges from a single chip to an extended fracture. Core failures are uncommon but usually are catastrophic. This article examines the possible causes of failure in zirconia systems and presents a case report involving the diagnosis and repair of three different types of failure in six 3Y-TZP/porcelain crowns.
Crowns, Dental restoration, Middle Aged, Dental restoration failure, Dental Veneers, Humans, Female, Yttrium, Dental Restoration Failure, Zirconium, Dental porcelain, Human
Crowns, Dental restoration, Middle Aged, Dental restoration failure, Dental Veneers, Humans, Female, Yttrium, Dental Restoration Failure, Zirconium, Dental porcelain, Human
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