Clinical chipping of zirconia all-ceramic restorations

Shokog Miura, Shing Kasahara, Momokog Kudo, Yayoig Okuyama, Masanobug Yoda, Hiroshig Egusa

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Citations (Scopus)

Abstract

Advancements in CAD/CAM systems employed in dentistry have made possible the application of yttria tetragonal zirconia polycrystal (Y-TZP) in zirconia-based all-ceramic restorations. Y-TZP has excellent flexural strength and fracture toughness and is used in molar crowns as well as frameworks of fixed partial dentures (FPDs). The use of Y-TZP in clinics has increased over the past several years, and it is now used in implant abutments and denture frameworks. While the demand for Y-TZP is increasing, chipping of porcelain used in the zirconia framework has been noted as a problem in zirconia-based all-ceramic restorations from a clinical point of view. We have previously used Cercon® smart ceramics with Y-TZP frames in clinics but have noticed the chipping of porcelain in a large number of cases over time. This review article focuses on the chipping of zirconia all-ceramic restorations by taking into account the following aspects: (1) clinical performance of zirconia all-ceramic restorations, (2) influence of frame thickness and porcelain firing schedules, and (3) reduction in porcelain chipping.

Original languageEnglish
Title of host publicationInterface Oral Health Science 2014
Subtitle of host publicationInnovative Research on Biosis-Abiosis Intelligent Interface
PublisherSpringer Japan
Pages317-323
Number of pages7
ISBN (Electronic)9784431551928
ISBN (Print)9784431551256
DOIs
Publication statusPublished - 2015 Jan 1

Keywords

  • All-ceramic restoration
  • Chipping
  • Fracture toughness
  • Veneer porcelain
  • Zirconia

ASJC Scopus subject areas

  • Dentistry(all)
  • Medicine(all)
  • Immunology and Microbiology(all)
  • Biochemistry, Genetics and Molecular Biology(all)

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