A5100434586- Endodontics and Root Canal Treatments
- Dental materials and restorations
- Dental Radiography and Imaging
- Drilling and Well Engineering
- Dental Research and COVID-19
- Dental Erosion and Treatment
- Dental Implant Techniques and Outcomes
- Dental Trauma and Treatments
- Occupational health in dentistry
- Engineering Technology and Methodologies
- Healthcare Education and Workforce Issues
- Consumer Perception and Purchasing Behavior
- Dental Anxiety and Anesthesia Techniques
- Fluoride Effects and Removal
- Invertebrate Immune Response Mechanisms
- Aquaculture disease management and microbiota
- Surgical Sutures and Adhesives
- Oral and Maxillofacial Pathology
- Bone Tissue Engineering Materials
- Temporomandibular Joint Disorders
- Financial Reporting and Valuation Research
- Microbial Metabolites in Food Biotechnology
- Food Quality and Safety Studies
- Advanced Photocatalysis Techniques
- Nutrition, Health and Food Behavior
Gangneung–Wonju National University
2016-2025
Ewha Womans University Medical Center
2020-2024
Seoul National University of Science and Technology
2024
Seoul National University
2022-2023
Pusan National University
2018-2023
Dankook University
2019
Hanyang University
2015
Daejeon Health Institute of Technology
2012
Kangnam University
2002-2009
Agriculture and Agri-Food Canada
2009
Accuracy of Root ZX in teeth with simulated root perforation the presence gel or liquid type endodontic irrigantObjectives: To evaluate accuracy irrigants, such as saline, 5.25% sodium hypochlorite (NaOCl), 2% chlorhexidine liquid, gel, and RC-Prep, also to determine electrical conductivities these irrigants.Materials Methods: A was on twenty freshly extracted by means a small made proximal surface at 4 mm from anatomic apex.Root used locate measure electronic working lengths.The results...
Infectious hematopoietic necrosis virus (IHNV) is a pathogen that causes high rates of mortality in salmonid fishes. Therefore, an RNA-seq-based transcriptome analysis was performed the head kidney rainbow trout infected with highly virulent IHNV strain to understand pathogenesis and defense strategies for infection trout. The results showed numbers DEGs were 618, 2626, 774 (control vs. IHNV) on days 1, 3, 5, respectively. Furthermore, enrichment gene ontology (GO) annotations classify GO...
A bench-scale pressurized low polarity water (PLPW) extractor was used for the extraction and separation of hemicellulose, cellulose, lignin, other phenolic compounds in flax shives. In first part this research, key PLPW process variables temperature, pH, flow rate, were optimized using central composite design (CCD). Temperature pH had a significant affect on fractionation carbohydrates (cellulose hemicellulose), phenolics. The optimal conditions hemicellulose determined by optimization...
This is a case report of chronic maxillary sinusitis caused by root canal overfilling Calcipex II (Techno-Dent). A 60 year-old male complained dull pain in the right molar area after complicated endodontic treatment using paste and was finally diagnosed with through clinical radiological observation. In biopsy examination, periapical granuloma contained lot dark translucent granules which were not stained hematoxylin eosin. They usually engulfed macrophages but rarely resorbed, resulting...
Nickel-titanium (NiTi) rotary files have enabled efficient root canal preparations that maintain the center with fewer aberrations compared to hand files. However, NiTi are susceptible fracture, which can thereby compromise treatment. Therefore, been developed enhance fracture resistance by modifying design and thermal The objective of this study was compare torsional fatigue bending manufactured from different alloys treatments. ProTaper NEXT X2 (PTN; M-wire), V taper 2H (V2H; controlled...
This study aimed to investigate the incidence and location of second mesiobuccal root (MB2) canal in maxillary molars with aid various measuring points lines using cone-beam computed tomography (CT).A total 205 images patients who underwent CT examinations between 2011 2015 as part their dental diagnosis treatment were included. There 76 first molar 135 molar. Canal orifices detected at -1 mm from top pulpal floor on images. Image assessment was performed by 2 observers reformatted image...
The replacement of missing teeth, especially in the anterior region, is an essential part dental practice.Fiber-reinforced composite resin bridges are a conservative alternative to conventional fixed prostheses or implants.It minimally invasive, reversible technique that can be completed single visit.The two cases presented herein exemplify treatment rootfractured teeth with natural pontic immediately after extraction.
The purpose of this study was to assess the antibacterial effect sodium dichloroisocyanurate (NaDCC), hypochlorite (NaOCl), and chlorhexidine (CHX) on Enterococcus faecalis evaluate compare time-dependant antimicrobial NaDCC with NaOCl CHX in root canal vitro before after instrumentation. Extracted human single teeth were prepared by serial instrumentation technique. samples autoclaved contaminated for 3 days E. monocultures. then divided into 4 groups. Each group irrigated inserted 2%...
A comparison of dimensional standard several nickel-titanium rotary filesObjectives: The aim this study was to compare the (Ni-Ti) files and verify size conformity.Materials Methods: ProFile (Dentsply Maillefer), RaCe (FKG Dentaire), TF file (SybronEndo) #25 with a 0.04 0.06 taper were investigated, 10 in each group for total 60 files.Digital images Ni-Ti captured under light microscope (SZX16, Olympus) at 32×.Taper diameter D 1 16 calculated digitally AnalySIS TS Materials (OLYMPUS Soft...
레진계 치아고정 재료로 Super-Bond C&B (SB), G-FIX (GF), G-aenial Universal Flo (GU), Filtek Z350 XT (FZ)를 이용하여 각 군당 15개씩 총 60개의 시편을 제작하였다. 3점 굽힘 시험으로 측정된 값에 따라 굴곡강도와 탄성계수를 계산하였다. 실험값은 One-way ANOVA test로 분석하고, Scheffe's 사후 검정하였다.
This study examines paraelectric Bi1.5Zn1.0Nb1.5O7 (BZN), which has no hysteresis and high dielectric strength, for energy density capacitor applications. To increase the breakdown strength of BZN film further, poly(vinylidene fluoride) BZN-PVDF composite is fabricated by aerosol deposition. The volume ratio each composition calculated using constant composition, we find that it was 12:88 vol% (BZN:PVDF). modulate structure properties ferroelectric polymer PVDF, heat-treated at 200 °C 5 30...
The purpose of this study was to enhance curing light penetration through resin inlays by modifying the thicknesses dentin, enamel, and translucent layers.To investigate layer dominantly affecting power density units, wafers each with 0.5 mm thickness were prepared measured a dental radiometer (Cure Rite, Kerr). dentin layer, which had dominant effect on reduction, decreased in from 0.1 while enamel kept unchanged at increased 0.9 vice versa, order maintain total 1.5 inlay. Power various...
We develop a signaling model of prestige seeking in competitive college applications. A prestigious program attracts high-ability applicants, making its admissions more selective, which turn further increases prestige, and so on. This amplifying effect results with negligible quality advantage enjoying significant equilibrium. Furthermore, applicants "sacrifice" their fits for programs pursuit the misallocation fits. Major choice data from Seoul National University provides evidence our...
Objectives: The purpose of this study was to evaluate the effect surface treatment FRC-Post on bonding strength resin cements. Materials and Methods: Pre-surface treated LuxaPost (DMG), Rely-X Fiber Post (3M ESPE) self adhesive cement Unicem ESPE), conventional ARC Ceramic Primer were used. After completing treatments posts, posts placed in clear molds photo-activation performed. specimens sectioned perpendicular into 2 mm-thick segments, push-out measured. results bond value statistically...
이러한 해부학적 변이는 제1대구치보다 제2대구치에서 많이 발견되었다. 상악 대구치의 성공적인 근관치료를 위해 다양한 형태의 C-형 치근 및 근관에 대한 지식이 필요하다.
The purpose of this study was to evaluate the physical properties different self-adhesive resin cements and their shear bond strength on dentin lithium disilicate ceramic compare these result with that conventional cement. For study, four (Rely-X Unicem, Embrace Wetbond, Mexcem, BisCem), one cement ARC) restorative composite (Z-350) were used. In order properties, compressive strength, diametral tensile flexural measured. To dentin, each adhered buccal dentinal surface extracted human lower...
A bioterrorism attack(BT) attack is the deliberate release of viruses, bacteria, fungi, and toxins used to cause illness or death in people, animal, plants.Therefore, healthcare workers are those who will take main role BT outbreak situations.The purpose this study investigate current status education for preparedness response health-related colleges.It important provide health-allied students case unexpected outbreak.The questionnaires were collected from March 10 June 2007 via mai...