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Influence of different polymeric materials of implant and attachment on stress distribution in implant-supported overdentures: a three-dimensional finite element study.
BMC Oral Health
January 2025
Department of Prosthetic Dentistry, Biomaterials Division, Faculty of Dentistry, King Salman International University, El Tur, South Sinai, Egypt.
Purpose: Investigating high performance thermoplastic polymers as substitutes to titanium alloy, in fabrication of implants and attachments to support mandibular overdenture, aiming to overcome stress shielding effect of titanium alloy implants. AIM OF STUDY: Assessment of stress distribution in polymeric prosthetic components and bone around polymeric implants, in case of implant-supported mandibular overdenture.
Materials And Methods: 3D finite element model was established for mandibular overdenture, supported bilaterally by two implants at canine region, and retained by two ball attachments.
Knowledge and attitude among Egyptian medical students regarding the role of human papillomavirus vaccine in prevention of oropharyngeal cancer: a questionnaire-based observational study.
Sci Rep
January 2025
Lecturer of Surgical Oncology, Oncology Centre, Mansoura University, Al Mansurah, Egypt.
Squamous cell carcinomas in several anatomical sites are caused by human papillomaviruses (HPV), and oncogenic double-stranded DNA viruses. There are about 200 genotypes; HPV16 is the most often occurring variant. Potential ways of infection are skin warts, sexual activity, exposure, immunization, or oral sex.
View Article and Find Full Text PDFVersatile nitrate-respiring heterotrophs are previously concealed contributors to sulfur cycle.
Nat Commun
January 2025
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
Heterotrophic denitrifiers play crucial roles in global carbon and nitrogen cycling. However, their inability to oxidize sulfide renders them vulnerable to this toxic molecule, which inhibits the key enzymatic reaction responsible for reducing nitrous oxide (NO), thereby raising greenhouse gas emissions. Here, we applied microcosm incubations, community-isotope-corrected DNA stable-isotope probing, and metagenomics to characterize a cohort of heterotrophic denitrifiers in estuarine sediments that thrive by coupling sulfur oxidation with denitrification through chemolithoheterotrophic metabolism.
View Article and Find Full Text PDFPotential benefits of social media in educating healthcare professionals and students on medical imaging with ionizing radiation: A scoping review.
Radiography (Lond)
January 2025
H&TRC, Health & Technology Research Center, Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Av. D. João II, Lote 4.69.01, Parque das Nações, Lisboa, 1990-096, Portugal; CICPSI, Faculdade de Psicologia, Universidade de Lisboa, Alameda da Universidade, Lisboa, 1649-013, Portugal.
Introduction: Advancements in medical imaging with ionizing radiation have significantly transformed the field and enhanced the education and training of medical professionals. A notable development in this educational landscape is the use of social media, which engages millions of users worldwide. This scoping review aims to explore the potential of social media as an educational tool for healthcare professionals and students in medical imaging with ionizing radiation, highlighting its benefits and disadvantages.
View Article and Find Full Text PDFCarbohydrate polymer-based nanoparticles in curcumin delivery for cancer therapy: A review.
Int J Biol Macromol
January 2025
Precision Medicine Center, Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China. Electronic address:
The use of natural products for cancer treatment has a lengthy history. The safety and multifunctionality of naturally occurring substances have rendered them appropriate for cancer treatment. Curcumin influences multiple molecular pathways and is advantageous for treating both hematological and solid tumors.
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