In the present article, a microscopic investigation was done on the effect of adding nano-clay-particles into the aluminum matrix on the wear behaviors of piston aluminum-silicon alloy under various forces and speeds. Then, the variation of the wear rate and the coefficient of friction (CoF) of the alloys was reported alongside the behavior of nano-reinforced composites. For this objective, the reciprocating wear tests were conducted under different conditions. Then, in order to evaluate the microstructural changes of the sample after the addition of the nano-clay-particles, optical and field-emission scanning electron microscopies (FESEM) were utilized. The obtained results demonstrated that the nano-reinforcement had an improvement in the wear behavior of the aluminum alloy. Furthermore, lower values of the CoF and wear rates were observed in the experiments, with lower normal forces or higher speeds.
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http://dx.doi.org/10.1016/j.micron.2023.103429 | DOI Listing |
Acta Biomater
January 2025
Zhejiang Trusyou Medical Instruments Co., Ltd.,325000, China.
Titanium dioxide nanotube arrays (TNTs) generated in situ on the surface of dental implants have been shown to enhance bone integration for load-bearing support while managing load distribution and energy dissipation to prevent bone resorption from overload. However, their inadequate stability limits the clinical use of conventional TNTs. This study introduces an innovative approach to improve the mechanical stability of TNTs while maintaining their bone-integration efficiency.
View Article and Find Full Text PDFJ Dent Res
January 2025
Center for MicroElectroMechanical Systems, Universidade do Minho, Guimarães, Portugal.
In the present in vitro study, we evaluated the adhesion of an injectable platelet-rich fibrin (i-PRF) to laser-textured zirconia surfaces and their resultant friction behavior against bone tissue. Three types of zirconia surfaces were compared regarding the i-PRF coating effects: 1) grit blasted with 250-μm spherical alumina particles and acid etched with 20% hydrofluoric acid (ZLA), 2) laser textured with a random (RD) surface pattern, or 3) laser textured with a designed pattern based on 16 lines and 8 passages (L16N8). The coefficient of friction (COF) of the specimens was assessed on a reciprocating sliding pin-on-plate tribometer at 1-N normal load, 1 Hz, and a 2-mm stroke length.
View Article and Find Full Text PDFClin Oral Investig
January 2025
Department of Prosthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, 310000, Zhejiang, China.
Objective: To evaluate short, mid and long-term clinical outcomes and patients' satisfaction of minimally invasive full-mouth rehabilitation using different materials and techniques for patients with moderate to severe tooth wear. Furthermore, materials were analyzed to identify their influences on clinical results.
Materials And Methods: Search was conducted in PubMed, Cochrane Central Register of Controlled Trial, Embase, Web of science and Scopus until December 19, 2024.
Mar Pollut Bull
January 2025
Institute of Aquatic Ecology, HUN-REN Centre for Ecological Research, Karolina út 29-31, H-1113 Budapest, Hungary; National Laboratory for Water Sciences and Water Security, Institute of Aquatic Ecology, HUN-REN Centre for Ecological Research, Karolina út 29-31, H-1113 Budapest, Hungary; Institute of Chemistry, Eötvös Loránd University, Pázmány Péter sétány 1/A, H1113 Budapest, Hungary. Electronic address:
Microplastics (MPs) are an emerging environmental concern, but studies on these contaminants, particularly in river ecosystems, remain scarce. Research has indicated that MPs in the environment are predominantly microfibers (MFs); however, a few studies suggest that the MFs encountered are chiefly of natural origin. In this study, we aimed to improve the understanding of MP/MFs (both plastic and natural), among microparticle (solid particles >10 μm to <5000 μm; mainly of plastic as well as natural origin) loads in the Tiber River, Italy, by analyzing the physicochemical properties of surface water and assessing the abundance and characteristics of MPs-MFs at three sites: Ponte Grillo, Aniene, and Magliana, along a 60 km stretch.
View Article and Find Full Text PDFJ Contemp Dent Pract
October 2024
Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, India; Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy, Phone: +39 3289129558, e-mail:
Ronsivalle V, Russo D, Cicciù M, et al. Navigating the Interconnected World of Tooth Wear, Bruxism, and Temporomandibular Disorders. J Contemp Dent Pract 2024;25(10): 911-913.
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