A5020142222- Geology and Paleoclimatology Research
- Dental materials and restorations
- Paleontology and Stratigraphy of Fossils
- Marine Biology and Ecology Research
- Dental Erosion and Treatment
- Drug Solubulity and Delivery Systems
- Endodontics and Root Canal Treatments
- Crystallization and Solubility Studies
- Advanced Photocatalysis Techniques
- Analytical Chemistry and Chromatography
- Paleontology and Evolutionary Biology
- Laser Applications in Dentistry and Medicine
- Adsorption and biosorption for pollutant removal
- Advancements in Transdermal Drug Delivery
- Catalytic Processes in Materials Science
- TiO2 Photocatalysis and Solar Cells
- RNA Interference and Gene Delivery
- Mesoporous Materials and Catalysis
- Dental Implant Techniques and Outcomes
- Concrete and Cement Materials Research
- Dental Health and Care Utilization
- Recycling and utilization of industrial and municipal waste in materials production
- Crustacean biology and ecology
- Analytical Methods in Pharmaceuticals
- Phosphorus and nutrient management
University of Greenwich
2011-2021
University of Liverpool
1992
South Thames College
1992
Over recent decades ostracods have become established indicators of ecosystem health, biodiversity and environmental change. With applications ranging across the earth sciences (from modern pollution studies to sea-level change, basin evolution, plate tectonics, palaeoceanography) related disciplines such as archaeology, ecology genetics, their utility extends almost every aquatic semi-aquatic habitat, from deep ocean high mountain springs. Their temporal range is now known cover last 500...
Summary The purpose of this study was to compare the effects professional tooth whitening agents containing highly concentrated hydrogen peroxide (with and without laser activation), on enamel surface; potential four different toothpastes remineralize any alterations. performed 50 human molars, divided in two groups: treated with Opalescence ® Boost Mirawhite Laser Bleaching. Furthermore, each group into five subgroups, a control one 4 subgroups remineralized with: Mirasensitive hap+,...
Abstract Conventional glass-ionomer cements (GICs) are popular restorative materials, but their use is limited by relatively low mechanical strength. This paper reports an attempt to improve these materials incorporation of 10 wt% three different types nanoparticles, aluminum oxide, zirconium and titanium dioxide, into two commercial GICs (ChemFil® Rock EQUIA™ Fil). The results indicate that the nanoparticles readily dispersed cement matrix hand mixing reduced porosity set filling empty...
A continuous manufacturing process, hot melt extrusion (HME), was employed for the development of high quality carbamazepine–saccharin (CBZ–SCH) cocrystals. The produced cocrystals were compared with a prototype prepared by solvent method. It found that processing parameters such as temperature, screw speed, and configuration critical parameters. In-line near-infrared analysis demonstrated cocrystallization takes place gradually during process along extruder's mixing zones. Further...
Remineralization of hard dental tissues is thought to be a tool that could close the gap between prevention and surgical procedures in clinical dentistry. The purpose this study was examine remineralizing potential different toothpaste formulations: toothpastes containing bioactive glass, hydroxyapatite, or strontium acetate with fluoride, when applied demineralized enamel. Results obtained by scanning electron microscopy (SEM) SEM/energy dispersive X-ray analyses proved hydroxyapatite...
Mesoporous silica nanoparticles MCM -41 were synthesized with two dimensional hexagonal p6mm symmetry, high specific surface area(~ 980m 2 /g) narrow pore size and an average particle of 186 nm.The produced used to encapsulate carbamazepine through a supercritical carbon dioxide process combined various organic solvents.Supercritical processing was found provide increased drug encapsulation.The loaded analyzed using X-ray diffraction differential scanning calorimetry (DSC) investigate the...
The aim of this study was to investigate the adaptation different types restorations towards deciduous and young permanent teeth.Class V cavities were prepared in teeth filled with materials (a conventional glass-ionomer, a resin-modified poly-acid-modified composite resin resin). Specimens aged artificial saliva for 1, 6, 12 18 months, then examined by SEM.The polyacid-modified had better marginal than glass-ionomers, though microcracks developed enamel tooth. glass-ionomers showed inferior...
Abstract Three different bioactive materials suitable as dentine substitutes in tooth repair have been studied: glass-ionomer cement, particulate bioglass, and calcium-silicate cement. On 15 permanent human molars, Class V cavities were prepared the bottom of each cavity was de-mineralized by an artificial caries gel. After de-mineralization, teeth restored with: (1) Bioglass ® 45S5 ChemFil Superior; (2) Biodentine™ (3) Superior for a complete repair. The stored 6 weeks saliva, then cut half...
The aim of the present study was to compare dynamics bone healing process after different types osteotomies. In total, 24 Wistar rats were subjected osteotomy performed with standard steel bur, piezosurgery, contact, and non-contact Erbium:yttrium-aluminum-garnet (Er:YAG) laser ablation. animals randomly divided into four groups, be euthanized immediately procedure, or at 1, 2, 3 weeks surgery. obtained samples analyzed by scanning electron microscopy (SEM). Immediately surgery, there...
Sustained release diclofenac sodium (Df-Na) solid lipid matrices with Compritol® 888 ATO were developed in this study. The drug/lipid powders processed via cold and hot melt extrusion at various drug loadings. influence of the processing temperatures, loading addition excipients on obtained dissolution rates was investigated. physicochemical characterization extruded batches showed existence crystalline extrudates a small amount being solubilized matrix. content uniformity tablet surface...
GRAPHICAL ABSTRACTCombustion synthesis of silicon by magnesiothermic reductionAll authorsSaida Haouli, Said Boudebane, Ian J. Slipper, Samia Lemboub, Piotr Gębara & Samiha Mezraghttps://doi.org/10.1080/10426507.2017.1416615Published online:09 January 2018