A5018751453- Endodontics and Root Canal Treatments
- Dental materials and restorations
- Tribology and Wear Analysis
- Optical Coherence Tomography Applications
- Dental Erosion and Treatment
- Brake Systems and Friction Analysis
- Oral microbiology and periodontitis research
- Physics of Superconductivity and Magnetism
- Lubricants and Their Additives
- Photoacoustic and Ultrasonic Imaging
- Dental Implant Techniques and Outcomes
- Polyoxometalates: Synthesis and Applications
- Advanced Photocatalysis Techniques
- Superconducting Materials and Applications
- Mesoporous Materials and Catalysis
- Synthesis and properties of polymers
- Particle Dynamics in Fluid Flows
- Powder Metallurgy Techniques and Materials
- Dental Research and COVID-19
- Pigment Synthesis and Properties
- Ga2O3 and related materials
- Advanced Nanomaterials in Catalysis
- Nanomaterials for catalytic reactions
- Phytochemical compounds biological activities
- Superconductivity in MgB2 and Alloys
Southern Medical University Shenzhen Hospital
2022
Tokyo Medical and Dental University
2016-2021
Shanghai Ninth People's Hospital
2020-2021
Shanghai Jiao Tong University
2013-2021
Zhejiang Chinese Medical University
2020
Inner Mongolia Agricultural University
2017
Guizhou University
2011-2016
Shanghai Polytechnic University
2010-2015
Abstract Optical coherence tomography (OCT) can create cross-sectional images of tooth without X-ray exposure. This study aimed to investigate the diagnostic accuracy 3D imaging OCT for proximal caries in posterior teeth. Thirty-six human molar teeth with 51 surfaces visibly 6 intact, 16 slightly demineralized, and 29 distinct carious changes were mounted take digital radiographs images. The sensitivity, specificity area under receiver operating characteristic curve (AUC) diagnosis enamel...
The aim of this study was to evaluate the signal intensity and attenuation swept source optical coherence tomography (SS-OCT) for dental caries in relation variation mineral density. SS-OCT observation performed on enamel dentin artificial demineralization natural caries. model surfaces created using Streptococcus mutans biofilms incubated an oral biofilm reactor. lesions were centrally cross sectioned scans obtained two directions construct a three-dimensional data set, from lesion surface...
Oral biofilm reactor (OBR) and pH cycling (pHC) artificial caries model were employed to evaluate the anti-demineralization effects of four composite filling systems on enamel-root dentin junction. Sixty-four blocks (6 mm × 6 2 mm) each with a cylindrical cavity randomly assigned pHC OBR group, then subgroups (n = 8) filled either Beautifil II (BEF, SPRG-filler-containing) or Estelite (EST) after adhesive (either Single Bond Universal (SBU) FL (FL, SPRG-filler-containing)). The...
ABSTRACT In this work, a novel approach was developed for obtaining strong three‐dimensional network of heat conducting path by filling alumina (Al 2 O 3 ) and graphene sheets (GR) into poly(ethylene‐co‐vinyl acetate) (EVA). This unique structure effectively prevents the inter‐sheet restacking minimizes thermal contact resistance between fillers interface. The resultant exhibits high conductivity 2.40 ± 0.07 W/m K, which is much higher than single filler at same loading. Additionally,...
The aim of this study was to evaluate the effect resin infiltration on root caries induced by Streptococcus mutans biofilms. Human premolar specimens were divided 5 groups: negative control (NC), Clearfil SE Bond (SEB), Icon-etch120s+Icon-infiltrant (HA120), Icon-etch10s+Icon-infiltrant (HA10) and K-etchant10s+Icon-infiltrant (PA10). penetration observed fluorescent microscope. Biofilm-induced demineralization conducted again swept-source optical coherence tomography confocal laser scanning...
The purpose of this study was to compare optical properties root caries under two observing conditions using swept-source coherence tomography (SS-OCT). In vitro and natural were observed by SS-OCT wet dry conditions, followed confocal laser scanning microscope (CLSM) transverse microradiography (TMR). Signal intensity (SI), distance between SI peaks (SI-distance) lesion depth obtained from OCT. Lesion measured CLSM; (LDTMR) mineral loss (ML) TMR. showed different OCT images patterns. that...
(1) Background: Dental caries, if diagnosed at the initial stage, can be arrested and remineralized by a non-operative therapeutic approach preserving tooth structure. Accurate reproducible diagnostic procedure is required for successful management of incipient caries. The aim this study was to evaluate accuracy 3D swept-source optical coherence tomography (3D SS-OCT) enamel caries smooth surface lesion with remineralization. (2) Methods: Forty-seven surfaces 24 extracted human teeth visibly...
Rare earth erbium-doped ZnO samples were synthesized via a facile sol–gel method. The influences of Er-doping on structural properties, morphological features and optical properties characterized by XRD, BET, SEM UV–Vis DRS techniques. results showed that the as-synthesized products well crystallined in absence impurity phases resulted reduction bandgap energy deducted from results. Amongst samples, layer-like 0.5% Er-doped with nest structure achieved highest photodegradation (90.7%)...
Evaluation of gap formation at the interfaces a two-step self-etching adhesive with/without pre-etching was performed using sweptsource optical coherence tomography (SS-OCT). Round cavities were prepared in bovine incisors middle (MC) and cervical (CC) thirds crown third root (CR). Clearfil SE bond directly applied to one group (SE) another (PA) pretreated with K-etchant gel. Following restoration by flowable composite resin, teeth thermally challenged stored for 2 months. Interfacial gaps...
Mass fraction of 1.5%, 3% the nanomontmorillonite (MMT) were separately added in phenol prepolymer, phenolic resin/ MMT was synthesized by in-situ method (it is called PF/M). The PF/M carried out TG analysis using thermal analyser, and synthetic resin as new matrix to prepare semimetallic friction material, tribological performance test on XD-MSM fixed speed type friction-wear testing machine accordance with GB_5763-2008. results show that heat resistance composite material are best when...
Abstract A novel visible-light-activated La
1:1 MMT/In composite nanopowders were prepared by nanoMMT and nanoIn modified with coupling agent KH550, the nano-MMT/In lubricating oil dispersion system was 150N base opl containing 3 mass fraction of powders, then took effect laser particle size analyzer ,TEM IR. The anti-wear friction-reducing behaviors that observed on MMU-10G abrasive-wear tester 45 # steel tribo-pair, morphology element worn surfaces analyzed SEM EDX. results showed grain smaller than one without modification, had...
The orthogonal experimental study is carried out to the Incorporation of different proportion functional components and effect on tribological performance among semi-metallic friction materials. A test conducted for each sample XXD-MSM constant speed tester in accordance with Brake Linings Automobiles (GB5763-2008). factor high-temperature abrasion resistance properties are evaluated along obtaining optimal formula, mechanism affecting analyzed worn surfaces by using a scanning electron...
Palygorskite/copper nanocomposites were prepared in order to study the friction behaviour and self-repairing effect of HT200 tribopair. The wear behaviors lubricant oil containing 4wt% evaluated on an MMU-10G abrasive-wear tester. Results indicated that average size nanoparticles is 200nm nanoparticle disperses homogeneously. significantly improve anti-wear performance.Wear mass loss decreases 41.7%and 63.2% compared with nano-palygoeskite no additive.SEM EDX examination worn surfaces show...
In this paper, some Ag-carried palygorskite nanocomposites P/Ag were prepared, their silver content 1.3%, 4.61%, 9.54% separately. To investigate the effects of on tribological properties 45 mild steel pairs, carried different Ag used as lubricant additive and tested MMU-10G testing machine. The wear mass loss is to assess anti-wear additives. surface topographies main elements are analyzed through SEM EDS after running for 30 hours. results show that friction coefficient significantly...
A type of phenolic resin (PF) was prepared by using TiO 2 nanoparticles modified with KH-550 as composite filler and modifier, then the PF were used adhesive to prepare semi-metallic friction materials samples. TG analysis nano-TiO /PF composites conducted on SETARAM-TG2DSC92216 thermal analyzer that made in France, wear property comparison tests samples carried out XD-MSM fixed speed friction-wear machine. The results show heat resistance after being compositely can be improved, carbon...