IADR Abstract Archives
Fracture Resistance of Ultra-Thin Ceramic Restorations: a Literature Review
Objectives: To evaluate the influence of the type and the thickness of ceramic on fracture resistance and to define the technical aspects required for the success and the good prognosis.
Methods: A literature search on the Influence of ceramic thickness and materials on fracture resistance of ultra-thin ceramic restorations was performed from 2010 to 2022. The screening process selected randomized clinical trials, systematic reviews and retrospective studies from PubMed and others databases using appropriate keywords and specific inclusion criteria.
Results: Minimal thickness can be used is different from a material to another:
According to the study of Nakamura Faisuka: 0.5 mm for Monolithic zirconia crowns (Lava plus zirconia, 3M ESPE) and 1.5 mm for Lithium disilicate crowns (IPS e max press), are the minimal thickness for a fracture resistance. The study of Jonathon S showed that 0.3 mm for veneers (Composite and Hybrid ceramic) provide a good fracture resistance.
The study Of Pascal Magne found a promising fracture resistance with 0.6 mm for occlusal veneers (Composite resin and Lithium disilicate). In another study, JP Andrade showed a fracture resistance of occlusal veneers with 0.6 mm using *IPS e max CAD and Vita Enamic and with 1.5 mm using Lava ultimate. The study Of Garqi Warg showed a fracture resistance of Bilayered dental ceramics (Lava ultimate, Cercon zirconia and IPS e max Ceram) with 1.2 mm.
This study also showed that the luting material and technique have a major role in providing better fracture resistance.
Conclusions: Under the conditions of this study, the fracture strength of ultra-thin ceramic restorations depends on their fabrication options and fracture properties. This type of restorations appears to be a promising restorative procedure in posterior and anterior teeth.
The success and the good prognosis of partial restorations are based on the control of tooth preparation with diagnostic wax-up, provisionalization, and the use of CAD-CAM technology.
Methods: A literature search on the Influence of ceramic thickness and materials on fracture resistance of ultra-thin ceramic restorations was performed from 2010 to 2022. The screening process selected randomized clinical trials, systematic reviews and retrospective studies from PubMed and others databases using appropriate keywords and specific inclusion criteria.
Results: Minimal thickness can be used is different from a material to another:
According to the study of Nakamura Faisuka: 0.5 mm for Monolithic zirconia crowns (Lava plus zirconia, 3M ESPE) and 1.5 mm for Lithium disilicate crowns (IPS e max press), are the minimal thickness for a fracture resistance. The study of Jonathon S showed that 0.3 mm for veneers (Composite and Hybrid ceramic) provide a good fracture resistance.
The study Of Pascal Magne found a promising fracture resistance with 0.6 mm for occlusal veneers (Composite resin and Lithium disilicate). In another study, JP Andrade showed a fracture resistance of occlusal veneers with 0.6 mm using *IPS e max CAD and Vita Enamic and with 1.5 mm using Lava ultimate. The study Of Garqi Warg showed a fracture resistance of Bilayered dental ceramics (Lava ultimate, Cercon zirconia and IPS e max Ceram) with 1.2 mm.
This study also showed that the luting material and technique have a major role in providing better fracture resistance.
Conclusions: Under the conditions of this study, the fracture strength of ultra-thin ceramic restorations depends on their fabrication options and fracture properties. This type of restorations appears to be a promising restorative procedure in posterior and anterior teeth.
The success and the good prognosis of partial restorations are based on the control of tooth preparation with diagnostic wax-up, provisionalization, and the use of CAD-CAM technology.