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Clinical performance of class II MOD fiber reinforced resin composite restorations: an 18-month randomized controlled clinical trial.
BMC Oral Health
January 2025
Conservative Dentistry Department, Faculty of Dentistry, Cairo University, Cairo, Egypt.
Background: In recent years, there have been suggestions for new restorative strategies that aim to effectively utilize modern adhesive technologies and protect the remaining intact tooth structure. This study was conducted to evaluate the clinical performance of fiber reinforced resin composites in restoring Class II MOD cavities over 18 months.
Methods: Forty-five participants with class II MOD cavities were randomly enrolled.
Development of multifunctional PAA-alginate-carboxymethyl cellulose hydrogel-loaded fiber-reinforced biomimetic scaffolds for controlled release of curcumin.
Int J Biol Macromol
January 2025
MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea; Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea; Center for Next-Generation Sensor Research and Development, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea. Electronic address:
Critical-sized bone defects in osteosarcoma treatment demand multifunctional scaffolds that must effectively integrate two key functions, promoting osteogenesis and delivering targeted chemoprevention. This study introduces a dual-component system featuring pH-responsive hydrogels and hydroxyapatite-based fiber-reinforced biomimetic scaffolds designed for controlled and localized curcumin delivery, while addressing its solubility and stability issues. The hydrogel system comprises a double network of polyacrylic acid, sodium alginate, carboxymethyl cellulose, and potato starch, specifically modified to encapsulate curcumin.
View Article and Find Full Text PDFThis paper employed a two-color double-pulse femtosecond laser (TDFL) technology for surface processing of carbon fiber reinforced polymers (CFRP). By exploring the changes in ablation thresholds for resin and carbon fiber under varying wavelengths and pulse numbers, optimal wavelength combinations were identified. Adjustments to processing parameters and pulse delay enabled precise removal of the CFRP surface, targeting resin while causing no damage to the underlying carbon fibers.
View Article and Find Full Text PDFEffect of boiling water soaking on the mechanical properties and durability of nanoclay-enhanced bamboo and glass fiber epoxy composites.
Sci Rep
January 2025
Department of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India.
Fiber-reinforced polymer composites are subjected to harsh environmental conditions over the course of their designed lifespan. Studying the aging process of fiber-reinforced polymer composites exposed to boiling water is critical for improving their durability. This study uses a hand lay-up technique to fabricate composites from glass fiber, bamboo fiber, nanoclay, and epoxy.
View Article and Find Full Text PDFSolventless Dual-Cure Liquid Resins Via Circular Use of Phthalic Anhydride for Recyclable Composite Applications.
Macromol Rapid Commun
January 2025
Department of Materials Science and Engineering, University of Utah, Salt Lake City, Utah, 84112, USA.
Fiber-reinforced composites (FRCs) possess a remarkable strength-to-weight ratio, making them ideal light-weighing alternative materials of metals used in automotive, aerospace, and outdoor equipment applications, but their recycling is challenging. Chemically recyclable thermoset polymers can enable fiber recovery and reuse; however, challenges remain in the separation and purification of depolymerized small molecules for efficient polymer recycling. To this end, a series of liquid resins for chemically recyclable polymer networks is designed based on phthalic anhydride, a widely produced and inexpensive chemical.
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