A5027965213- Dental materials and restorations
- Dental Implant Techniques and Outcomes
- Dental Erosion and Treatment
- Bone Tissue Engineering Materials
- Dental Research and COVID-19
- Orthodontics and Dentofacial Orthopedics
- Periodontal Regeneration and Treatments
- Color Science and Applications
- Pigment Synthesis and Properties
- Meteorological Phenomena and Simulations
- Endodontics and Root Canal Treatments
- Electrospun Nanofibers in Biomedical Applications
- Atmospheric aerosols and clouds
- Oral microbiology and periodontitis research
- Glass properties and applications
- Cultural Heritage Materials Analysis
- Photopolymerization techniques and applications
- Climate variability and models
- Building materials and conservation
- Laser Applications in Dentistry and Medicine
- Atmospheric chemistry and aerosols
- Orthopaedic implants and arthroplasty
- Color perception and design
- Precipitation Measurement and Analysis
- Cryospheric studies and observations
Earth System Science Interdisciplinary Center
2019-2023
University of Maryland, College Park
2019-2023
NOAA Center for Satellite Applications and Research
2022-2023
NOAA National Environmental Satellite Data and Information Service
2023
National Oceanic and Atmospheric Administration
2022
Cooperative Institute for Climate and Satellites
2010-2019
University of Wisconsin–Madison
2007-2018
Care Institute of Medical Sciences
2018
Yonsei University Dental Hospital
2000-2012
Yonsei University College of Dentistry
2000-2012
To determine the translucency of human and bovine enamel dentin using reflection spectrophotometers.The color intact specimens was measured over a white black plasticine backing two spectrophotometers with different aperture sizes; parameter (TP) contrast ratio (CR) were calculated. Plasticine used as because not uniform. The TP values five composite resins backings reflectance standards also determined.There no significant differences between (p>0.05). Mean 1 mm thick enamel, dentin, 14.7,...
Abstract The delivery of hyperthermic thermoseeds to a specific target site with minimal side effects is an important challenge in targeted hyperthermia, which employs magnetic method and functional polymers. An external field used control the site‐specific targeting nanoparticles. Polymer‐coated nanoparticles can confer higher affinity biological cell membranes. In this study, uncoated, chitosan‐coated, starch‐coated were synthesized for use as thermoseed. Each sample was examined respect...
Abstract The purpose of this study was to evaluate the effect nanofiller in experimental composites on opacity (contrast ratio). Thirteen were prepared with three different sizes fillers: barium glass minifiller (1 μm; 69–76 wt %), silica microfiller (0.04 0–6 and (7 nm; 0–7 %). After disk‐type specimens irradiated a halogen light curing unit at 500 mW/cm 2 for 30 s, aged 6 h room conditions stored deionized water 1, 7, 14, 21, 28, 56, 84 days. contrast ratios measured as function aging...
Indirect resin composites are generally regarded to have better color stability than direct since they possess higher conversion degree. OBJECTIVE: The present study aimed at comparing the changes in (ΔE) and coordinates (ΔL, Δa Δb) of one (Estelite Sigma: 16 shades) 2 indirect (BelleGlass NG: shades; Sinfony: 26 after thermocycling. MATERIAL AND METHODS: Resins were packed into a mold light cured; post-curing was performed on resins. Changes 1-mm-thick specimens determined 5,000 cycles...
Abstract The purpose of this study was to investigate the periodontal regenerative effects a chitosan nonwoven membrane applied surgically created preclinical one‐wall intrabony defects in beagle dogs. One‐wall (4 × 4 mm) were bilaterally mandibular second and fourth premolars six surgical control group received flap operation only. resorbable‐membrane (RM) treated with resorbable membrane. chitosan‐nonwoven‐membrane (CNWM) amount junctional epithelium migration connective tissue adhesion...