Article
Chemistry, Multidisciplinary
Kuo-Cheng Fan, Yu-Ling Lin, Hao-Wei Tsao, Hsuan Chen, Sheng-Yang Lee, Yu-Chen Cheng, Hsiao-Ping Huang, Wei-Chun Lin
Summary: The ability of glass-ceramics to express the optical properties of natural teeth is important in esthetic restorations. Controlling the sintering temperature can change the transparency, nanoparticle size, and surface hardness, making it suitable for clinical applications.
Article
Crystallography
Syed Rashid Habib, Abdulaziz Saud Al Rashoud, Turki Ali Safhi, Abdulrahman Hamad Almajed, Hamad Ali Alnafisah, Salwa Omar Bajunaid, Abdulaziz S. Alqahtani, Mohammed Alqahtani
Summary: By using a spectrophotometer to measure the color differences and translucency parameters of commonly used esthetic dental ceramics, significant variations in color differences and translucency were found among different ceramics, even with the same color/shade.
Article
Materials Science, Ceramics
Jaroslav Kastyl, Premysl Stastny, Zdenek Chlup, Lu Song, Erik Scasnovic, Martin Trunec
Summary: In this investigation, dental 3Y-TZP ceramics with excellent strength and enhanced translucency were developed. The applicability and resistance to low-temperature degradation of the new dental ceramics were demonstrated.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Dentistry, Oral Surgery & Medicine
Zhengda Wu, Jiehua Tian, Donghao Wei, Ping Di, Ye Lin
Summary: This study aimed to evaluate the color accuracy and bias of 4 CAD-CAM monolithic restorative materials with different thicknesses using the CIELab color space. Results showed that material type and thickness significantly affected color accuracy and bias, with restorations at thicknesses of 1.5 mm to 2.0 mm potentially leading to improved clinical outcomes.
JOURNAL OF PROSTHETIC DENTISTRY
(2022)
Review
Dentistry, Oral Surgery & Medicine
Melissa David-Perez, Juan P. Ramirez-Suarez, Federico Latorre-Correa, Andres A. Agudelo-Suarez
Summary: This systematic review synthesized the scientific evidence on the degree of conversion (DC) obtained by Fourier-transform infrared spectroscopy (FTIR) of light-cured and dual-cured resinous cements, photopolymerized under different thicknesses of vitreous ceramics. The findings suggest that good photoactivation is crucial for achieving adequate DC in light-cured and dual-cured resin cements, and light-cured cements perform better in terms of DC in vitreous ceramic restorations with thicknesses up to 2 mm.
JOURNAL OF PROSTHODONTIC RESEARCH
(2022)
Article
Dentistry, Oral Surgery & Medicine
Mitra Farzin, Elham Ansarifard, Masumeh Taghva, Razieh Imanpour
Summary: The study found that the thickness, number of staining applications, and type of stain can affect the optical properties of monolithic zirconia, with the first staining causing more noticeable color changes and increased surface roughness, while the second staining decreased surface roughness.
JOURNAL OF PROSTHETIC DENTISTRY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Khaled Mohamed Farrag, Samir Ibrahim Bakry, Yasser M. Aly
Summary: The purpose of this study was to evaluate the effect of yellow anodization on the color of lithium disilicate ceramic with different thicknesses. The results demonstrated that yellow anodization and increased ceramic thickness improved the color of the restoration.
JOURNAL OF PROSTHETIC DENTISTRY
(2022)
Article
Dentistry, Oral Surgery & Medicine
Burcu Gunal Abduljalil, Salim Ongun, Ozay Onoral
Summary: Different surface conditioning methods have significant effects on the translucency and color properties of resin-matrix ceramics (RMCs), and clinicians should carefully select appropriate methods for clinical applications.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2021)
Article
Engineering, Biomedical
Evaggelia Papia, Sara Anna Caroline Brodde, Jonas Peter Becktor
Summary: The study evaluated how different thicknesses of PEEK influence mechanical properties under flexure and tension, with 1.0 mm thick samples showing higher values in elastic limit and conventional deflection in flexural strength test. Tensile strength test did not show significant difference in elastic limit, but 1.0 mm thick PEEK received significantly higher maximum value at fracture.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Review
Chemistry, Physical
Alessandro Vichi, Zejiao Zhao, Mahdi Mutahar, Gaetano Paolone, Chris Louca
Summary: This review focuses on the translucency of lithium-based silicate glass-ceramics (LSGC) used in chairside CAD/CAM materials and the methods used to measure it. A total of 33 English-language papers were selected from the PubMed database for analysis. The study found that IPS e.max CAD, Suprinity PC, and Celtra Duo were the most commonly investigated materials, with A2 being the most frequently examined color. The translucency parameter (TP) was the most commonly used method for measuring translucency.
Article
Dentistry, Oral Surgery & Medicine
Ahmed Mahmoud Fouda, Osama Atta, Mutlu Ozcan, Bogna Stawarczyk, Robert Glaum, Christoph Bourauel
Summary: This study evaluated and compared the fracture resistance, translucency, and color reproducibility of novel monolithic CAD/CAM ceramics, as well as the effect of aging on fracture load and color stability. The results showed that lithium silicate ceramics were more translucent, while zirconia demonstrated higher fracture resistance and color stability.
CLINICAL ORAL INVESTIGATIONS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Pablo Machado Soares, Ana Carolina Cadore-Rodrigues, Maria Gabriela Packaeser, Atais Bacchi, Luiz Felipe Valandro, Gabriel Kalil Rocha Pereira, Marilia Pivetta Rippe
Summary: The study aimed to evaluate the masking ability of different ceramic materials over different implant abutment materials. The results showed that bilayer systems (Zir+Pc) had the most predictable masking ability, while monolithic ceramics were not able to effectively mask discolored substrates. Increasing the thickness of the restorative material improved the masking ability of all materials tested.
JOURNAL OF PROSTHETIC DENTISTRY
(2022)
Article
Biochemistry & Molecular Biology
Susanne Jung, Marco Maria Moser, Johannes Kleinheinz, Arndt Happe
Summary: The surface roughness did not significantly affect cellular behavior, but there were slight differences between materials. Cells grown on zirconia dioxide exhibited higher cytotoxic effects, while those on lithium disilicate showed lower inflammation expression.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Dentistry, Oral Surgery & Medicine
Hyoungseok Ko, Dohyun Kim, Sung-Ho Park
Summary: This study analyzed the effect of the dental curing unit's (DCU) inhomogeneous beam profile on the microhardness distribution of composite resin specimens with different thicknesses. The results showed that the inhomogeneity of the beam profile can be influenced by attenuation conditions, and the effect of the beam profile on different thicknesses and types of composite resin varies.
Article
Engineering, Civil
Zhipeng Gao, Hai Zhang, Jian Zhao, Ying Zhang, Dong Ruan
Summary: In this study, thin-walled aluminum square tubes with different wall thickness configurations were experimentally compressed at various loading angles. Numerical analysis was also conducted to investigate the effects of wall thickness, thickness configuration, and loading angle on the deformation mode and energy absorption of the tubes. The results showed that tubes with opposite walls of different thicknesses exhibited better energy absorption performance under oblique loading, while tubes with opposite walls of the same thickness absorbed the most energy at larger angles.
THIN-WALLED STRUCTURES
(2023)
