Effect of immediate dentin sealing on load-bearing capacity under accelerated fatigue of thin occlusal veneers made of CAD-CAM glass-ceramic and resin composite material. 2023

Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
MSciD and PhD Post-Graduate Program in Oral Science, Ontological Clinic, Faculty of Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina State, Brazil.

The objective of this study was to assess the influence of immediate dentin sealing (IDS) on the fatigue behavior of laminate occlusal veneers fabricated with CAD/CAM lithium disilicate ceramic and resin composite. Forty sound human molars were prepared and randomly divided into 4 groups (n = 10): RC-IDS+ (IDS and resin composite occlusal laminate veneer); RC-IDS- (resin composite occlusal laminate veneer without IDS); LD-IDS+ (IDS and lithium disilicate laminate veneer); LD-IDS- (lithium disilicate occlusal laminate veneer without IDS). The restorations were obtained using a digital workflow. After surface conditioning and bonding, thermocycling and accelerated fatigue tests (20 Hz, 5000 cycles with an initial load of 300 N, step-size of 100 N for 10,000 cycles, up to 1000 N, and then a step-size of 50 N until failure) were conducted. Fatigue data were recorded for both outcomes (crack or fracture) and statistically analyzed. Fractographic and adhesive interface analysis were conducted. The indirect resin composite groups showed better fatigue behavior compared to lithium disilicate. IDS only had a positive effect for the survival of resin composite restorations for the 'fracture' outcome. Evident presence of micro-gaps at the adhesive interface in the LD-IDS- group could be noted. Immediate dentin sealing improved fatigue resistance behavior of resin composite occlusal veneers. However, this effect was not observed in lithium disilicate veneers.

UI MeSH Term Description Entries
D008422 Materials Testing The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility. Biocompatibility Testing,Biocompatible Materials Testing,Hemocompatibility Testing,Testing, Biocompatible Materials,Testing, Hemocompatible Materials,Hemocompatibility Testings,Hemocompatible Materials Testing,Materials Testing, Biocompatible,Materials Testing, Hemocompatible,Testing, Biocompatibility,Testing, Hemocompatibility,Testing, Materials,Testings, Biocompatibility
D002516 Ceramics Products made by baking or firing nonmetallic minerals (clay and similar materials). In making dental restorations or parts of restorations the material is fused porcelain. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Boucher's Clinical Dental Terminology, 4th ed) Ceramic
D003188 Composite Resins Synthetic resins, containing an inert filler, that are widely used in dentistry. Composite Resin,Resin, Composite,Resins, Composite
D003776 Dental Porcelain A type of porcelain used in dental restorations, either jacket crowns or inlays, artificial teeth, or metal-ceramic crowns. It is essentially a mixture of particles of feldspar and quartz, the feldspar melting first and providing a glass matrix for the quartz. Dental porcelain is produced by mixing ceramic powder (a mixture of quartz, kaolin, pigments, opacifiers, a suitable flux, and other substances) with distilled water. (From Jablonski's Dictionary of Dentistry, 1992) Porcelain,Porcelain, Dental,Dental Porcelains,Porcelains,Porcelains, Dental
D003799 Dental Stress Analysis The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures. Analyses, Dental Stress,Analysis, Dental Stress,Stress Analyses, Dental,Stress Analysis, Dental,Dental Stress Analyses
D003801 Dental Veneers The use of a layer of tooth-colored material, usually porcelain or acrylic resin, applied to the surface of natural teeth, crowns, or pontics by fusion, cementation, or mechanical retention. Dental Laminates,Dental Laminate,Dental Veneer,Laminate, Dental,Laminates, Dental,Veneer, Dental,Veneers, Dental
D003804 Dentin The hard portion of the tooth surrounding the pulp, covered by enamel on the crown and cementum on the root, which is harder and denser than bone but softer than enamel, and is thus readily abraded when left unprotected. (From Jablonski, Dictionary of Dentistry, 1992) Dentine,Dentines,Dentins
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D016474 Weight-Bearing The physical state of supporting an applied load. This often refers to the weight-bearing bones or joints that support the body's weight, especially those in the spine, hip, knee, and foot. Load-Bearing,Axial Loading,Loadbearing,Weightbearing,Axial Loadings,Load Bearing,Weight Bearing
D017076 Computer-Aided Design The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics. CAD-CAM,Computer-Aided Manufacturing,Computer-Assisted Design,Computer-Assisted Manufacturing,Computer Aided Design,Computer Aided Manufacturing,Computer Assisted Design,Computer Assisted Manufacturing,Computer-Aided Designs,Computer-Assisted Designs,Design, Computer-Aided,Design, Computer-Assisted,Designs, Computer-Aided,Designs, Computer-Assisted,Manufacturing, Computer-Aided,Manufacturing, Computer-Assisted

Related Publications

Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
September 2010, The Journal of prosthetic dentistry,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
October 2019, Dental materials : official publication of the Academy of Dental Materials,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
April 2014, Journal of prosthodontic research,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
April 2020, Dental materials : official publication of the Academy of Dental Materials,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
April 2011, The Journal of prosthetic dentistry,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
November 2018, Dental materials journal,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
June 2017, The European journal of prosthodontics and restorative dentistry,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
November 2017, Journal of the mechanical behavior of biomedical materials,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
August 2020, The European journal of prosthodontics and restorative dentistry,
Bruna Mueller, and Rafaela Oliveira Pilecco, and Luiz Felipe Valandro, and Vanessa Carla Ruschel, and Gabriel Kalil Rocha Pereira, and Jussara Karina Bernardon
April 2021, Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.],
Copied contents to your clipboard!