Results 91 to 100 of about 364,055 (260)

Mechanical and biological evaluation of β-dicalcium silicate/dicalcium phosphate-based cements: promising materials for biomedical applications

open access: yesJournal of Taibah University for Science
This study explores the synthesis and evaluation of β-Dicalcium silicate and Dicalcium phosphate-based cements for biomedical use. β-Tricalcium phosphate was synthesized using microwave-assisted wet precipitation, while β-Dicalcium silicate was prepared ...
Ammar Z. Alshemary   +6 more
doaj   +1 more source

Evaluation of Shear Bond Strength and Marginal Adaptation of Calcium Silicate-based Cements and Premixed Bioceramics When Restored with Glass Ionomer Cement: An In Vitro Study [PDF]

open access: yesJournal of South Asian Association of Pediatric Dentistry
Aims and background: In primary molars, pulpotomy is recommended when the radicular pulp tissue is either healthy or capable of healing. A biologically compatible pulpotomy agent is used to seal the radicular pulp.
Megha C Patel   +5 more
doaj   +1 more source

Influence of calcination temperature on the durability of metakaolin concrete and limitations of conventional testing methods

open access: yesStructural Concrete, EarlyView.
Abstract Incorporating metakaolin (MK) as a partial cement replacement offers a viable pathway to reduce carbon emissions while improving concrete performance. However, its durability behavior remains inconsistent, and the applicability of durability test methods to MK‐based concrete is not well established.
Mayen J. Geu   +3 more
wiley   +1 more source

Marine Anoxia and Ocean Acidification During the End‐Permian Extinction

open access: yesGeophysical Monograph Series, Page 325-340., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Ying Cui   +4 more
wiley  

+1 more source

High temperature fracture behavior and damage evolution of recycled aggregate concrete produced from metakaolin modified parent concrete

open access: yesStructural Concrete, EarlyView.
Abstract The increasing use of recycled aggregate concrete (RAC) offers significant environmental benefits by reducing construction and demolition waste; however, its fracture performance and damage evolution under elevated temperatures remain insufficiently understood, particularly when recycled aggregates are derived from metakaolin modified parent ...
Zubair Yousuf, Viktor Hlavička
wiley   +1 more source

Development and characterization of eco‐friendly fire‐resistant 3D‐printable concrete utilizing recycled nickel slag

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the utilization of industrial nickel slag waste to develop eco‐friendly fire‐resistant 3D concrete printing (3DCP). The benefits of waste nickel slag are bifold: it serves as a partial replacement, reducing carbon‐intensive cement and enhances fire resistance.
Akilesh Ramesh   +4 more
wiley   +1 more source

Quantitative Evaluation by Glucose Diffusion of Microleakage in Aged Calcium Silicate-Based Open-Sandwich Restorations

open access: yesInternational Journal of Dentistry, 2012
This study compared the in vitro marginal integrity of open-sandwich restorations based on aged calcium silicate cement versus resin-modified glass ionomer cement. Class II cavities were prepared on 30
S. Koubi   +4 more
doaj   +1 more source

Integrated Alpha–Gamma Radiation Exposure From Natural Radionuclides in Cement and Gypsum Production: Implications for Occupational Lung Cancer Risk

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Natural radionuclides in cement and gypsum production materials pose significant risks of occupational radiation exposure that are not well documented in Iraqi Kurdistan. This study quantifies alpha and gamma radiation levels from naturally occurring radioactive materials, specifically 222Rn, 238U, 232Th, and 40K, in cement and gypsum samples ...
Adil M. Hussien   +4 more
wiley   +1 more source

Progress in bone tissue engineering biomaterials: Development, challenges, and prospects

open access: yesVIEW, EarlyView.
Scheme 1 Application of biomaterials in immunomodulation during bone tissue engineering. Abstract Bone defect repair remains a major clinical challenge in orthopedics. Over 2 million cases caused by trauma, tumors, and other factors occur annually, with large‐scale defects posing a particular bottleneck due to limited self‐healing capacity.
Yuanbin Zhang   +7 more
wiley   +1 more source

What Outcomes Matter in Vital Pulp Therapy? Current Concepts and Challenges

open access: yesAustralian Dental Journal, EarlyView.
ABSTRACT Vital pulp therapy (VPT) has re‐emerged as a practical and biologically sound alternative for managing deep caries and carious pulp exposures. Although its clinical use is now widespread, the outcomes used to judge the success of VPT remain inconsistent and often difficult to compare across studies.
Philip Yuan‐Ho Chien   +5 more
wiley   +1 more source

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