Review
Materials Science, Multidisciplinary
Qingyu Yao, Yongfang Chen, Zhongying Wang, Huan Qi
Summary: This paper comprehensively lists the current toughness-testing methods. Edge chipping is found to be the simplest way of measuring the ceramic fracture-toughness, with potential application in industry. Furthermore, energy analyses are proposed to improve the way in which the toughness expression is formulated.
Article
Engineering, Biomedical
Erick de Lima, Carina Baptiston Tanaka, Josete Barbosa Cruz Meira, Karina Felix Santos, Lidia Arashiro, Lisiane Cribari, Carla Castiglia Gonzaga, Paulo Francisco Cesar
Summary: The study evaluated the edge chipping resistance and fracture toughness of 3Y-TZP bilayers with different materials/processing combinations, finding that CAD-on method showed superior performance. Cooling rate did not have a significant effect on R-eA and K-C.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Materials Science, Ceramics
Tzu-Yu Peng, Chien-Ming Kang, Sheng-Wei Feng, Cheng-Yuan Hung, Shogo Iwaguro, Dan-Jae Lin
Summary: A novel glass-ceramic spray deposition (GCSD) method was developed to improve the bond strength between yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) and resin cement. The study found that GCSD can produce a dense and uniform coating, leading to enhanced bond strength between Y-TZP and resin cement.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Ming Zhou, Xiaoyu Zhang, Yaming Zhang, Ding Li, Zhe Zhao, Xigeng Lyu, Qing Wang, Kai Tang, Yanmin Jia, Lina Niu, Fu Wang
Summary: Constructing a novel graded glass/zirconia ceramic by utilizing the interdiffusion between dense zirconia and a novel lithium disilicate glass in the SiO2-Li2O-Al2O3 system is a promising solution to reduce cracking and delamination of bilayered zirconia prosthesis. The constructed graded glass/zirconia structure exhibited obvious gradient characteristics in microstructure, glass content, and mechanical properties. The study elucidated the mechanism of the evolution of the graded structure and the change of strength, providing a promising strategy to improve the interface stability of bilayered zirconia restoration.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Engineering, Biomedical
Justine Hensel, Michael Reise, Anja Liebermann, Ramona Buser, Bogna Stawarczyk
Summary: This study evaluated the impact of multiple firings during the veneering process on the fracture load of zirconia crowns. The results showed that the number of firings significantly influenced the fracture load, and aging via thermocycling had a positive effect on the fracture load.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Dentistry, Oral Surgery & Medicine
Ali Hafezeqoran, Pouya Sabanik, Roodabeh Koodaryan, Kambiz M. Ghalili
Summary: This study aimed to evaluate the impact of sintering speed, aging process, and different surface treatments on the translucency and surface structure of monolithic zirconia restorations. The results showed that speed sintering and polishing can decrease surface free energy and increase translucency, while aging process decreases surface free energy.
JOURNAL OF PROSTHETIC DENTISTRY
(2023)
Article
Biochemistry & Molecular Biology
Chien-Ming Kang, Dan-Jae Lin, Sheng-Wei Feng, Cheng-Yuan Hung, Shogo Iwaguro, Tzu-Yu Peng
Summary: Glass-ceramic spray deposition (GCSD) with HF etching can enhance the bond strength and durability of zirconia to resin cement.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Shanshan Liang, Hongqiang Ye, Fusong Yuan
Summary: Conventional bonding technology is not suitable for zirconia due to its unique properties. This study found that femtosecond laser treatment significantly improves the surface roughness and flexural strength of zirconia, providing a new approach for surface treatment.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Ceramics
Onur Arslan
Summary: In literature, it is shown that material gradation can inhibit surface crack initiation in glass/ceramic composites subjected to Hertzian indentation. However, surface cracks could still occur due to higher loadings or the presence of surface flaws/defects. Therefore, it is important to characterize graded composites regarding their resistance against Hertzian crack initiation and propagation.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Haoyu Shi, Gongyu Liu, Guilin Yang, Qingzhen Bi, Yongjie Zhao, Bo Wang, Xu Sun, Xiaoling Liu, Huan Qi, Wenhao Xu, ChungKet Thein, Hao Nan Li
Summary: This paper proposes an analytical model to calculate the size and shape of edge chipping in the scratch of soda-lime glass, considering the strain-rate hardening effect. A series of experimental trials were conducted to validate the accuracy of the model under different parameters. The key findings of this research are expected to provide meaningful and helpful references in the real fabrication of high-valued optical devices made of SLG.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Biomedical
Ana Carolina Cadore-Rodrigues, Renan Vaz Machry, Kiara Serafini Dapieve, Arie Werner, Gabriel Kalil Rocha Pereira, Luiz Felipe Valandro, Cornelis Johannes Kleverlaan
Summary: In-lab simulation of CAD/CAM grinding had a negative effect on the fatigue behavior of 4YSZ, while glaze spray induced better performance compared to air abrasion. The intaglio surface treatments differently influenced the fatigue performance of 4YSZ, however, only glaze spray could reverse the damage caused by grinding.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Mechanics
Anja Schellenberger, Renan Belli, Juergen Karsten, Ulrich Lohbauer
Summary: The Single-Edge-Precracked-Beam (SEPB) method is a variation of SEPB method for metallic materials, used for testing the fracture toughness (KIc) of ceramic materials. It creates a sharp precrack using a bridge indentation technique, avoiding the issue of blunt notch-root radii seen in the SEVNB method. However, the SEPB method is challenging and costly due to difficulties in obtaining a valid precrack and measurement.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Eun-Hye Jo, Yoon-Hyuk Huh, Kyung-Ho Ko, Chan-Jin Park, Lee-Ra Cho
Summary: This in vitro study aimed to investigate the fracture resistance of metal-ceramic, zirconia-feldspathic porcelain, and zirconia-lithium disilicate anterior restorations, and evaluate the effect of material and substructure design. The study found that zirconia-lithium disilicate and metal-ceramic with substructure design A showed better fracture resistance. The substructure design of metal-ceramic, with increased metal coverage of the palatal surface, significantly improved fracture resistance.
JOURNAL OF PROSTHETIC DENTISTRY
(2022)
Article
Engineering, Biomedical
Ana Carolina Cadore-Rodrigues, Renan Vaz Machry, Camila Pauleski Zucuni, Gabriel Kalil Rocha Pereira, Luiz Felipe Valandro
Summary: The study found that grinding and polishing the inner surface of zirconia and lithium disilicate glass-ceramic can have a detrimental effect on their fatigue behavior, and it is recommended to avoid this treatment whenever possible.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Susana M. Salazar Marocho, Mary Beth VanLandingham, Firas Mourad, Andres Pappa, Sreenivas Koka
Summary: This study characterized epoxy replicas of cemented zirconia crowns and found surface damage on the occlusal surfaces of posterior teeth, significant variability in surface roughness, and not all anterior teeth following the golden proportion concept. The study design provides a framework for using replicas to identify early patterns or features that may lead to fracture and analyze morphology and symmetry.
