A5101973095- Dental materials and restorations
- Endodontics and Root Canal Treatments
- Dental Radiography and Imaging
- Dental Trauma and Treatments
- Periodontal Regeneration and Treatments
- Dental Research and COVID-19
- Dental Erosion and Treatment
- Dental Implant Techniques and Outcomes
- Photopolymerization techniques and applications
- Spine and Intervertebral Disc Pathology
- Concrete and Cement Materials Research
- Geochemistry and Geologic Mapping
- Conservation Techniques and Studies
- Silicone and Siloxane Chemistry
- Indoor Air Quality and Microbial Exposure
- Cultural Heritage Materials Analysis
- Facial Trauma and Fracture Management
- Oral and gingival health research
- Orthodontics and Dentofacial Orthopedics
- Concrete Properties and Behavior
- Bone Tissue Engineering Materials
- Recycling and Waste Management Techniques
- Surface Roughness and Optical Measurements
- Skin Protection and Aging
- Drilling and Well Engineering
Wonkwang University
2013-2024
Jeonbuk National University
2017-2019
Abstract Objective This article compares and evaluates the marginal internal fitness three-dimensional (3D) accuracy of class II inlays fabricated using Tescera (TS) resin, milling hybrid zirconia blocks, 3D printing with NextDent C&B. Materials Methods Fifty-two mesio-occlusal were conventional method TS, Lava Ultimate (LU), Zolid Fx multilayer (ZR), (n = 13 each). The evaluated at six points in mesio-distal section a replica under digital microscope (160× magnification), was software....
The aim of this study was to evaluate tooth discoloration caused by contact with a novel injectable mineral trioxide aggregate (MTA)-based root canal sealer (Endoseal; Maruchi, Wonju, Korea) compared widely used resin-based (AHplus; Dentsply De Trey, Konstanz, Germany) and conventional MTA (ProRoot; Dentsply, Tulsa, OK, USA).Forty standardized bovine samples were instrumented divided into three experimental groups one control group (n = 10/group). Each material inserted the cavity, all...
A variety of root canal sealers were recently launched to the market. This study evaluated physicochemical properties, biocompatibility, and sealing ability a newly resin-based sealer (Dia-Proseal, Diadent) compared existing (AHplus, Dentsply DeTrey ADseal, Metabiomed).The properties tested including pH, solubility, dimensional change, radiopacity evaluated. Biocompatibility was measured using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. For microleakage test,...
The purpose of the present study was to evaluate effects proanthocyanidin (PAC), a crosslinking agent, on physical properties collagen hydrogel and behavior human periodontal ligament cells (hPDLCs) cultured in scaffold.Viability hPDLCs treated with PAC measured using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. scaffold were evaluated by measurement setting time, surface roughness, differential scanning calorimetry (DSC). cell morphology observation numbers...
The effect of saliva decontamination procedures on dentin bond strength after universal adhesive curingObjectives: purpose this study was to investigate the effectiveness multiple for salivary contamination curing a according its etch modes.Materials and Methods: Forty-two extracted bovine incisors were trimmed by exposing labial surfaces embedded in cylindrical molds.A (All-Bond Universal, Bisco) used.The teeth randomly divided into groups mode procedure.The applied manufacturer's...
Abstract Aim To apply an innovative three‐dimensionally printed tooth model to investigate the efficacy of three ultrasonically activated irrigation (UAI) systems in removing multispecies biofilms from dentine samples. Methodology Three‐dimensionally teeth with a curved root canal were fabricated standardized slot apical third achieve precision fit human specimens. Multispecies including Enterococcus faecalis , Streptococcus mitis and Campylobacter rectus developed for 21 days. The canals...
Paraformaldehyde has been used in the past as a pulpotomy agent. However, it severe cytotoxic effect and may cause alveolar bone necrosis. Depulpin, devitalizing agent containing 49% paraformaldehyde, is no longer frequently due to its side effects. In two cases described present study, Depulpin was during root canal treatment. It caused gradual loss of sensibility adjacent teeth, gingival necrosis, osteomyelitis. This case report demonstrates serious effects using...
Among dental traumas, horizontal root fractures are relatively uncommon injuries. Proper initial management and periodical evaluation is essential for the successful treatment of a root-fractured tooth. If pulpal necrosis develops, endodontic indicated, exclusively coronal fragment. Fragment diastases exert great influence on healing at fracture line necrosis. An adequately treated tooth has good prognosis. This case report describes 2-yr follow up 3 maxillary central incisors, first with...
Although vertical root fracture (VRF) is mostly found in endodontically treated teeth, it also occurs spontaneously. If VRF recognized after endodontic treatment, considered to be iatrogenic and can lead legal trouble. However, problems averted if the dentist prove that existed before treatment. This case report describes an unusual, spontaneous tooth presents a useful tip for determining whether iatrogenic. We performed nonsurgical treatment on mandibular first molar with irreversible...
Objective This study aimed to investigate the effects of dodecacalcium hepta-aluminate (C12A7) content on some physicochemical properties and cytocompatibility tricalcium silicate (C3S) cement using human dental pulp cells (hDPCs). Material Methods High purity C3S was manufactured by a solid phase method. C12A7 mixed with in proportions 0, 5, 8, 10 wt% (C12A7-0, −5, −8, −10, respectively). Physicochemical including initial setting time, compressive strength, alkalinity were evaluated....
This study investigated the effect of an aluminum chloride hemostatic agent on shear bond strength (SBS) a universal adhesive to dentin.Eighty extracted human molars were trimmed at occlusal dentin surfaces and divided mesiodistally. According application, specimens randomly allocated into control (C) (Traxodent; H) groups. Each group was 4 subgroups according system (n = 20): Scotchbond Multi-Purpose (SBER), Clearfil SE Bond (CLSE), All-Bond Universal etch-and-rinse mode (ALER), self-etch...
This study evaluated the effect of barium titanate (BT) on dielectricity, radiopacity, and biological properties tricalcium silicate (C3S). C3S/BT samples were prepared with varying proportions BT (0, 20, 40, 60 wt%; referred to as BT00, BT20, BT40, BT60, respectively). Dielectric constant radiopacity measured. Cytocompatibility was human dental pulp cells. After surgical procedures rat mandible, immunohistochemistry Masson's trichrome staining performed. The dielectric increased higher...
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본 연구의 목적은 다양한 재광화제가 법랑질의 전단결합강도(SBS)에 미치는 영향을 평가하고 정량 광유도 형광법(QLF)을 통하여 재광화 능력을 확인하는 것이다. 총 60개의 우식이 없는 인간 제3대구치의 치근을 제거한 후 근원심 방향으로 이등분하고 법랑질BR표면이 노출되게 포매한 뒤 법랑질 표면을 사포로 연마하였다. 120개의 시편들을 재광화제 종류 [대조군. Tooth Mousse plusSUPTM/SUP(TM), Apapro (AP), BGS-7 bioglass (BG)]와 도포 시간(24시간, 2주)에 따라 임의로 8개의 군으로 나누었다. 모든 시편들은 탈회 용액에 37 ℃에서 48시간 동안 담가 탈회시켰고, 그 재광화제를 적용하여 simulated body fluid (SBF)에 보관하였다. QLF 시험으로 및 후의 형광 소실도를 정량적으로 측정하였으며, 측정된 값으로부터 회복량을 계산하였다. 이후 레진 수복하여 전단결합강도(SBS)를 측정하였다. 자료는...
본 연구의 목적은 4-methacryloxyethyl trimellitate anhydride (4-META) / methyl methacrylate (MMA) & tri-n-butylborane (TBB) resin을 커피에 침전했을 때 서로 다른 분말-액 비율과 분말의 색이 색 안정성에 미치는 영향을 알아보는 것이다. 실험군(Bondfill SB)은 분말/액 비율(0.8:1 1:1 1.2:1, 질량 %)과 색(light medium)의 조합에 따라 설정되었고, 광중합형 복합 레진(Filtek Z350 XT flowable) 이 대조군으로 사용되었다. 총 7개 군(n = 8 for color difference, n 10 translucency parameter)의 디스크 모양 시편은 4주 동안 침전되었다. 시편의 색은 기준점, 1일, 1주, 2주, 3주, 후에 각각 분광 광도계(spectrophotometer)를 이용하여 측정되었다. 색차(color ΔE)와 반투명도...
본 연구에서는 두 가지 법용접착제의 적용방법에 따른 상아질의 전단결합강도를 24시간 후와 3시간 차아염소산나트륨 시효 처리 후에 평가하였다. 범용접착제 (All-Bond Universal and Scotchbond Universal)와 3단계 산부식형 접착제 (Scotchbond Multipurpose) 및 2단계 자가부식형 (Clearfil SE Bond)를 사용하였다. 180개의 발거된 우치의 순측 상아질을 노출 시킨 후 자가중합레진에 포매하였다. 상아질 부식방법과 사용된 접착제의 종류에 따라 6개의 군으로 나누어, 각 군당 30개의 시편의 노출된 상아질에 접착제를 적용하고 원통형으로 복합레진을 충전하고 광중합 하였다. 제작된 시편을 상온의 물 속에 보관한 후, 2개의 나누어 하나의 군은 10% 차아염소산나트륨에 보관하였다. 만능시험기를 이용하여 전단접착강도를 측정한 그 결과를 one-way ANOVA, Student’s t-test와 Tukey HSD test를...
Polymerization shrinkage of composite resin is closely related to direct or indirect restoration failure. Many studies have reported that curing mode affects polymerization, but few whether polymerization affected by the shade dual-cure core build-up resin. Therefore, purpose this study compare a according and mode. A (Dual Core, Vericom) was selected specimens were prepared using either natural (A3) blue 6 mm diameter 0.5 thickness. The light-cured self-cured measured modified bonded disc...
Crown fractures are a common type of dental injuries and very frequently occurred on maxillary anterior teeth, area requiring rapid aesthetic recovery. fragment reattachment is simple conservative method to restore the fractured teeth. The technique promotes esthetic outcomes as utilizing natural contour, shade, surface texture teeth gives mechanical similarity in terms wear-resistance. Also it emotional positive responses patients requires less chair time costs. This case report presents...
This study aimed to assess the effect of different calcium silicate-based root canal sealers (CSRS) on osteogenic in human periodontal ligament cells (hPDLCs). hPDLCs were cultured a medium containing extract 5 types CSRS. The specimens assessed by cell cytotoxicity test, alkaline phosphatase staining, alizarin red S quantitative real-time PCR, Western blot analysis, and enzyme-linked immunosorbent assay. diluted concentrations extracted solutions had no significant viability hPDLCs. There...