A5013770462- Dental materials and restorations
- Dental Implant Techniques and Outcomes
- Bone Tissue Engineering Materials
- Advancements in Solid Oxide Fuel Cells
- Dental Erosion and Treatment
- Dental Research and COVID-19
- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Endodontics and Root Canal Treatments
- Dental Radiography and Imaging
- Periodontal Regeneration and Treatments
- Electronic and Structural Properties of Oxides
- Orthopaedic implants and arthroplasty
- Orthodontics and Dentofacial Orthopedics
- Additive Manufacturing and 3D Printing Technologies
- Polymer Surface Interaction Studies
- Anatomy and Medical Technology
- Engineering Applied Research
- Magnetic and transport properties of perovskites and related materials
- Oral microbiology and periodontitis research
- Pigment Synthesis and Properties
- Advanced ceramic materials synthesis
- Dental Health and Care Utilization
- Surgical Sutures and Adhesives
- Bone and Dental Protein Studies
Seoul National University
2016-2025
Seoul National University of Science and Technology
2024
Korea Forest Service
2022
Research Institute of Industrial Science and Technology
2010-2021
Seoul National University Dental Hospital
2012-2020
University of California, Santa Barbara
2016-2018
Government of the Republic of Korea
2018
Kyungpook National University
2015
Ohio University
2011
University of Florida
2007-2010
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,...
This study aimed to identify the effects of sintering conditions dental zirconia on grain size and translucency.MATERIALS AND METHODS.Ten specimens each two commercial brands (Lava KaVo) were made sintered under five different conditions.Microwave (MS) conventional (CS) methods used fabricate specimens.The dwelling time was 20 minutes for MS minutes, 2, 10, 40 hours CS.The density blocks measured.Total transmission measurements taken using a spectrophotometer.Twoway analysis variance model...
This study was conducted to evaluate clinical validity of a zirconia full-coverage crown by comparing zirconia's wear capacity over antagonistic teeth with that feldspathic dental porcelain.THE SUBJECT GROUPS WERE DIVIDED INTO THREE GROUPS: the polished porcelain group (Group 1), 2), and glazing 3). Twenty specimens were prepared from each group. Each procedure such as plasticity, condensation, according manufacturer's manual. A test 240,000 chewing cycles using dual-axis simulator. The...
3D printing of denture artificial teeth with resin materials is worthy study in a novel way. This evaluated chipping and indirect tensile fracture resistance material (Dentca resin) compared conventionally prefabricated (Premium-8, Surpass, SR-Orthosit-PE, Preference). One hundred tooth specimens were prepared for testing. The printed at 50 µm layer thickness methacrylate-based photopolymerized by stereolithography printing. Chipping tests conducted speed 1 mm/min until fracture. loads the...
This study was conducted to evaluate the effects of full-coverage all-ceramic zirconia, lithium disilicate glass-ceramic, leucite or stainless steel crowns on antagonistic primary tooth wear. There were four groups: (Steel) group, glass-ceramic (Leucite) (Lithium) and monolithic zirconia (Zirconia) group. Ten flat crown specimens prepared per group; opposing teeth using canines. A wear test over 100,000 chewing cycles a dual-axis simulator 50 N masticating force, losses restorative materials...
Abstract Marine mussels use catechol‐rich interfacial mussel foot proteins (mfps) as primers that attach to mineral surfaces via hydrogen, metal coordination, electrostatic, ionic, or hydrophobic bonds, creating a secondary surface promotes bonding the bulk mfps. Inspired by this biological adhesive primer, it is shown ≈1 nm thick catecholic single‐molecule priming layer increases adhesion strength of crosslinked polymethacrylate resin on up an order magnitude when compared with conventional...
PURPOSE The purpose of this in vitro study was to investigate the wear resistance and surface roughness three interim resin materials, which were subjected chewing simulation. MATERIALS AND METHODS Three materials evaluated: (1) three-dimensional (3D) printed (digital light processing type), (2) computer-aided design manufacturing (CAD/CAM) milled, (3) conventional polymethyl methacrylate materials. A total 48 substrate specimens prepared. divided into two subgroups 30,000 or 60,000 cycles...
A critical issue to tackle before successful commercialization of solid oxide fuel cells (SOFCs) can be achieved is the long-term thermal stability required for SOFCs operate reliably without significant performance degradation despite enduring cycling. In this work, impact cycling on durability NiO-yttria-stabilized zirconia-based anode-supported studied using three different heating/cooling rates (1, 2, and 5 °C min-1) as temperature fluctuated between 400 700 °C. Our experiments simulate...
The purpose of this prospective study was to evaluate the effectiveness newly developed autogenous tooth bone graft material (AutoBT)application for sinus procedure.MATERIALS AND METHODS.The patients with less than 5.0 mm residual height in maxillary posterior area were enrolled.For procedure, Bio-Oss grafted control group and AutoBT powder experimental group.Clinical radiographic examination done comparison materials cavity between groups.At 4 months after biopsy specimens analyzed by...
Purpose . This study was conducted to evaluate the effects of different phosphate monomer-containing primers on shear bond strength between yttria-tetragonal zirconia polycrystal (Y-TZP) ceramics and MDP-containing self-adhesive resin cement. Materials Methods Y-TZP ceramic surfaces were ground flat with #600-grit SiC paper divided into six groups (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mi>n</mml:mi><mml:mo>=</mml:mo><mml:mn>10</mml:mn></mml:math>). They...
Abstract Dental hypersensitivity due to exposure of dentinal tubules under the enamel layer saliva is a very popular and highly elusive technology priority in dentistry. Blocking water flow within exposed key principle for curing dental hypersensitivity. Some salts used “at home” solutions remineralize inside by concentrating ingredients. An “in-office” option applying dense resin sealants on tubule entrance has only localized effects well-defined sore spots. We report self-assembled film...
Dentin hypersensitivity is sharp and unpleasant pains caused by exposed dentinal tubules when enamel outside of the tooth wears away. The occlusion via in situ remineralization hydroxyapatite best method to alleviate symptoms dentin hypersensitivity. Commercially available dental desensitizers are generally effective only on a specific area relatively toxic, their performance usually depends skill clinician. Here, facile efficient treatment with remarkable aesthetic improvement inspired...
3D printing offers many advantages in dental prosthesis manufacturing. This study evaluated the wear resistance of resin material compared with milling and conventional materials. Sixty substrate specimens were prepared three types materials: printed resin, milled self-cured resin. The at a build angle 0° 100 μm layer thickness by digital light processing printing. Two kinds abraders made zirconia CoCr alloy. loaded 5 kg for 30,000 chewing cycles vertical horizontal movements under...
A fused-deposition modeling (FDM) 3D-printed polyethylene terephthalate glycol (PETG)–sepiolite composite showed effective synergetic mechanical reinforcement in tensile testing compared to an injection-molded composite. The results that the addition of 3 phr sepiolite improved strength PETG samples by 35.4%, while was 7.2%. To confirm these phenomena, FDM PETG–sepiolite composites were investigated small-angle X-ray scattering correlate nanostructures with their strengths. data and...