A5037335266- Dental materials and restorations
- Dental Implant Techniques and Outcomes
- Endodontics and Root Canal Treatments
- Dental Research and COVID-19
- Bone Tissue Engineering Materials
- Dental Erosion and Treatment
- Orthodontics and Dentofacial Orthopedics
- Dental Radiography and Imaging
- Building materials and conservation
- Recycling and utilization of industrial and municipal waste in materials production
- Oral microbiology and periodontitis research
- Dental Trauma and Treatments
- Dental Anxiety and Anesthesia Techniques
- Mesenchymal stem cell research
- Laser Applications in Dentistry and Medicine
- Additive Manufacturing and 3D Printing Technologies
- dental development and anomalies
- Pigment Synthesis and Properties
- Conservation Techniques and Studies
- Cancer Cells and Metastasis
- Advanced materials and composites
- Surgical Sutures and Adhesives
- Periodontal Regeneration and Treatments
- Laser-Ablation Synthesis of Nanoparticles
- Bone and Dental Protein Studies
Tehran University of Medical Sciences
2015-2024
University of Tehran
2008-2013
University of Sheffield
2000-2002
The purpose of this study was to assess the effect surface acid etching on biaxial flexural strength two hot-pressed glass ceramics reinforced by leucite or lithium disilicate crystals.Forty ceramic disks (14-mm diameter, 2-mm thick) consisting 20 leucite-based (IPS Empress) and lithia disilicate-based Empress 2) were produced hot-pressing technique. All specimens polished then cleaned ultrasonically in distilled water. Ten each group etched with 9% hydrofluoric (HF) gel for 2 minutes again....
This in vitro study was designed to evaluate and compare the marginal gap, internal fit, fracture load of resin-bonded, leucite-reinforced glass ceramic mesio-occlusal-distal (MOD) inlays fabricated by computer-aided design/manufacturing (CAD/CAM) or hot pressing.Fifty caries-free extracted human molars were prepared for standardized MOD inlays. Impressions each specimen made poured using type IV dental stone. Dies randomly divided into two equal groups. Twenty-five hot-pressed technique IPS...
Gamma irradiation is able to affect various structural and biological properties of biomaterials In this study, a composite Hap/PLGA-PEG their ingredients were submitted gamma doses 25 50 KGy. Various such as molecular weight (GPC), thermal behavior (DSC), wettability (contact angle), cell viability (MTT assay), alkaline phosphatase activity studied for the composites each ingredients. The results showed decrease in copolymer with no change glass transition melting temperatures after...
Hyperthermia treatment induced by magnetic mesoporous glasses has been applied as a potential therapeutic approach for bone defects due to malignant tumors. The objective of this study was synthesize and characterize the structural biological properties bioactive (BGs) producing multifunctional materials. effect addition copper (Cu) glass composition also evaluated. Fe BG FeCu BGs, Cu were synthesized dried template sol–gel method. Then bioglasses characterized analyzed using Fourier...
Abstract Background The purpose of this study was to assess the surface characterization and frictional resistance between stainless steel brackets two types orthodontic wires made nickel-titanium alloys after immersion in a chlorhexidine-containing prophylactic agent. Methods Stainless with either (SS) or heat-activated (Ni-Ti) were immersed 0.2% chlorhexidine an artificial saliva environment for 1.5 h. force measured on universal testing machine crosshead speed 10 mm/min over 5-mm...
Carbon nanotubes with unique physical and mechanical properties have shown great potential for biological applications, including tissue engineering mimicking the structure of human bones. In present work, sol-gel synthesized nanocomposite powder multi-wall carbon nanotube/hydroxyapatite characterized using field-emission scanning electron microscopy, transmission microscope, X-ray diffraction, Fourier transform infra-red spectroscopy thermal analyses. The results show homogenous dispersion...
Very limited comparative information about the microleakage in noble alloy full cast crowns luted with different types of adhesive resin cements is available. The purpose this study was to evaluate and marginal gap two self-adhesive that other luting for crowns. Fifty noncarious human premolars molars were prepared a standardized manner crown restorations. Crowns made from using technique randomly cemented five cementing agents as follows: 1) GC Fuji Plus resin-modified glass ionomer cement,...
This study evaluated the curing efficiency of light-emitting diode (LED) and halogen [quartz tungsten halogens (QTH)] lights through ceramic by determining surface microhardness a highly filled resin cement.Resin cement specimens (Variolink Ultra; with without catalyst) (5-mm diameter, 1-mm thick) were condensed in Teflon mold. They irradiated disc (IPS Empress 2, diameter 5 mm, thickness 2 mm) high-power light-curing units as follows: (1) QTH for 40 seconds (continuous), (2) LED 20 seconds,...