ACS Appl Mater Interfaces
December 2024
Purpose: To investigate the effect of different post-curing light intensities on the trueness, compressive strength, and resin polymerization of 3D-printed 3-unit fixed dental prostheses (FPD).
Materials And Methods: A total of 60 specimens were prepared to support a 3-unit FDP with a deep chamfer marginal design, utilizing computer-aided design and computer-aided manufacturing (CAD-CAM) technology. Light-polymerizing FDP resin with varying light intensities (105, 210, 420, and 840 mW/cm) was employed for 10 min.
The unprecedented phenomenon that a charge density wave (CDW) emerges inside the antiferromagnetic (AFM) phase indicates an unusual CDW mechanism associated with magnetism in FeGe. Here, we demonstrate that both the CDW and magnetism of FeGe can be effectively tuned through postgrowth annealing treatments. Instead of the short-range CDW reported earlier, a long-range CDW order is realized below 110 K in single crystals annealed at 320 °C for over 48 h.
View Article and Find Full Text PDFThe disordered phase of spinel LiMnNiO (LNMO) is more appealing as high-voltage cathode due to its superior electrochemical performance compared to its ordered counterpart. Various methods are developed to induce a phase transition. However, the resulting materials often suffer from capacity degradation due to the adverse influence of accompanying Mn ions.
View Article and Find Full Text PDFWhile phonon anharmonicity affects lattice thermal conductivity intrinsically and is difficult to be modified, controllable lattice defects routinely function only by scattering phonons extrinsically. Here, through a comprehensive study of crystal structure and lattice dynamics of Zintl-type Sr(Cu,Ag,Zn)Sb thermoelectric compounds using neutron scattering techniques and theoretical simulations, we show that the role of vacancies in suppressing lattice thermal conductivity could extend beyond defect scattering. The vacancies in SrZnSb significantly enhance lattice anharmonicity, causing a giant softening and broadening of the entire phonon spectrum and, together with defect scattering, leading to a ~ 86% decrease in the maximum lattice thermal conductivity compared to SrCuSb.
View Article and Find Full Text PDFSupersolid, an exotic quantum state of matter that consists of particles forming an incompressible solid structure while simultaneously showing superfluidity of zero viscosity, is one of the long-standing pursuits in fundamental research. Although the initial report of He supersolid turned out to be an artefact, this intriguing quantum matter has inspired enthusiastic investigations into ultracold quantum gases. Nevertheless, the realization of supersolidity in condensed matter remains elusive.
View Article and Find Full Text PDFObjectives: This follow-up study aimed to report the 24- and 30-month outcomes of a cohort previously enrolled in a randomized clinical trial on surgical reconstructive treatment of peri-implantitis.
Methods: Twenty-four patients were diagnosed with peri-implantitis and treated with surgical reconstructive therapy with or without the adjunctive use of Er:YAG laser. Within-group and between-group comparisons were tested with mixed model with repeated measures.
Article Title And Bibliographic Information: Sanz-Martín I, Cha J-K, Sanz-Sánchez I, Figuero E, Herrera D, Sanz M. Changes in peri‑implant soft tissue levels following surgical treatment of peri‑implantitis: a systematic review and meta-analysis. Clin Oral Implants Res.
View Article and Find Full Text PDFJ Evid Based Dent Pract
December 2023
Article Title And Bibliographic Information: Hu D, Zhong T, Dai Q. Clinical efficacy of probiotics as an adjunctive therapy to scaling and root planning in the management of periodontitis: a systematic review and meta-analysis of randomized controlled trails. J Evid Based Dent Pract.
View Article and Find Full Text PDFA cubic metal exhibiting zero thermal expansion (ZTE) over a wide temperature window demonstrates significant applications in a broad range of advanced technologies but is extremely rare in nature. Here, enabled by high-temperature synthesis, we realize tunable thermal expansion via magnetic doping in the class of kagome cubic (-3) intermetallic (Zr,Nb)Fe. A remarkably isotropic ZTE is achieved with a negligible coefficient of thermal expansion (+0.
View Article and Find Full Text PDFObjective: Patients taking antiresorptive medications in dental clinics are at risk of medication-related osteonecrosis of the jaw (MRONJ), which poses daily challenges for their clinicians. This paper aimed to summarize and revisit the three most recognized practice guidelines for the management and prevention of MRONJ, which were proposed by the American Association of Oral and Maxillofacial Surgeons (AAOMS), and presented by the Journal of Bone and Mineral Research (JBMR) and the Journal of Clinical Oncology (JCO). Results and case studies: The AAOMS position paper focused on risk stratification by different medications, management decision trees, risk factors, pathophysiology, and disease staging.
View Article and Find Full Text PDFMaresins are lipid mediators derived from omega-3 fatty acids with anti-inflammatory and pro-resolving properties, capable of promoting tissue regeneration and potentially serving as a therapeutic agent for chronic inflammatory diseases. The aim of this review was to systematically investigate preclinical and clinical studies on maresin to inform translational research. Two independent reviewers performed comprehensive searches with the term "Maresin (NOT) Review" on PubMed.
View Article and Find Full Text PDFObjectives: This randomized clinical trial assessed changes in protein biomarker levels and bacterial profiles after surgical reconstructive therapy of peri-implantitis and investigated whether the adjunctive use of Er:YAG laser impacts protein biomarker and microbial outcomes.
Materials And Methods: Twenty-four patients received surgical reconstructive therapy for peri-implantitis with guided bone regeneration following mechanical debridement with (test) or without (control) the adjunctive irradiation of Er:YAG laser. Bacterial and peri-implant crevicular fluid (PICF) samples were collected over 6 months and analyzed with bacterial qPCR and luminex multiplex assays.
A new series of compounds, ANiBi (where A = K, Rb, and Cs) are discovered with a quasi-one-dimensional (Q1D) [NiBi] double-walled column and a coaxial inner one-dimensional Bi atomic chain. The columns are linked to each other by intercolumn Bi-Bi bonds and separated by an A cation. Typical metallic behaviors with strong correlation of itinerant electrons and the Sommerfeld coefficient enhanced with the increasing cationic radius were experimentally observed and supported by first-principles calculations.
View Article and Find Full Text PDFAs a promising environment-friendly alternative to current vapor-compression refrigeration, solid-state refrigeration based on the barocaloric effect has been attracting worldwide attention. Generally, both phases in which a barocaloric effect occurs are present at ambient pressure. Here, instead, we demonstrate that KPF exhibits a colossal barocaloric effect due to the creation of a high-pressure rhombohedral phase.
View Article and Find Full Text PDFZero thermal expansion (ZTE) alloys as dimensionally stable materials are usually challenged by harsh environmental erosion, since ZTE and corrosion resistance are generally mutually exclusive. Here, a high-performance alloy, Zr Ta Fe Co , is reported, that shows isotropic ZTE behavior (α = 0.21(2) × 10 K ) in a wide temperature range of 5-360 K, high corrosion resistance in a seawater-like solution compared with classic Invar and stainless Invar, and excellent cyclic thermal and structural stabilities.
View Article and Find Full Text PDFBackground: The treatment of the peri-implantitis remains complex and challenging with no consensus on which is the best treatment approach.
Purpose: To examine the key local and systemic factors associated with implant loss, disease progression, or favorable outcomes after surgical peri-implantitis therapy.
Materials And Methods: Records of patients treated for peri-implantitis were screened.
Quasicrystals (QCs), first discovered in 1984, generally do not exhibit long-range magnetic order. Here, we report on long-range magnetic order in the real icosahedral quasicrystals ( QCs) Au-Ga-Gd and Au-Ga-Tb. The AuGaGd QC exhibits a ferromagnetic transition at = 23 K, manifested as a sharp anomaly in both magnetic susceptibility and specific heat measurements, along with an appearance of magnetic Bragg peak below .
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