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Reduction and amalgamation of mercury in silver nanoparticle suspensions under dark conditions.
Chemosphere
December 2024
Department of Chemistry and Biochemistry, Florida International University, Miami, 11200 SW 8th St, Miami, FL 33199, United States; Institute of Environment, Florida International University, 11200 SW 8th St, Miami, FL33199, United States. Electronic address:
Mercury (Hg) is a global pollutant of concern, and its transport and transformation are controlled by various environmental factors, with aquatic particles being an important driver. Understanding the interactions between silver nanoparticles (AgNPs) and Hg under dark condition is a prerequisite for studying the extent of AgNPs interaction with light and its participation in Hg biogeochemical cycling. Herein, under laboratory experimental setting, it was found that the reduction of divalent Hg (Hg(II)) to gaseous elemental Hg (Hg) by AgNPs readily occurred.
View Article and Find Full Text PDFEvaluating the effect of amalgam fillings on caries detection in cone-beam computed tomography images.
Dent Res J (Isfahan)
September 2024
Department of Maxillofacial Surgery, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
Background: Dental caries stands as one of the most prevalent dental concerns, with early diagnosis being pivotal in clinical dentistry. Cone-beam computed tomography (CBCT) emerges as a widely utilized modality for dental caries identification, owing to its significant advantages. However, there remains a considerable knowledge gap regarding the efficacy of CBCT scans in detecting dental caries.
View Article and Find Full Text PDFClinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational Cross-Sectional Study With Meta-Analysis.
J Esthet Restor Dent
November 2024
Department of Endodontics, Recep Tayyip Erdogan University, Rize, Turkey.
Objectives: This web-based survey, conducted across multiple countries, sought to explore the factors that impact the decision-making of clinicians when it comes to managing defective direct restorations.
Methods: A survey consisting of 14 questions was sent out to dentists in 21 countries through various online platforms. The survey consisted of two sections.
Advancing Diabetic Dental Restorations: A Comparative Analysis of Alveolar Bone Loss in Class II Composite Resin Versus Amalgam Fillings.
Cureus
October 2024
Department of Preventive Dental Science, Faculty of Dentistry, Najran University, Najran, SAU.
Article Synopsis
- This study focused on how different dental materials (composite resin vs. amalgam) impact alveolar bone loss in diabetic patients, who are more prone to periodontal issues.
- It involved 64 diabetic patients split into two equal groups, each receiving different types of Class II restorations, and assessed their periodontal health through clinical and radiographic evaluations.
- The findings revealed that composite resin restorations were linked to greater alveolar bone loss compared to amalgam, highlighting the importance of material choice in dental care for diabetics.
Human biomonitoring of essential and toxic trace elements (heavy metals and metalloids) in urine of children, teenagers, and young adults from a Central European Cohort in the Czech Republic.
J Expo Sci Environ Epidemiol
October 2024
RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Article Synopsis
- The study investigated urinary concentrations of 14 trace elements in 711 individuals from the Czech Republic to understand their exposure levels, including toxic metals and essential elements, and their health impacts.
- Young adults had higher levels of toxic elements, while children showed elevated levels of essential ones, with dietary factors like seafood and mushroom consumption influencing trace element concentrations.
- A significant percentage of participants exceeded the recommended health-based guidance values for arsenic and essential trace elements like zinc, indicating potential health risks associated with both deficiencies and excesses in trace element intake.*
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