Bioceramics Development and Applications最新文献

Modal Analysis of FGM Plates (Sus304/Al2O3) Using FEM FGM板(Sus304/Al2O3)模态有限元分析

Bioceramics Development and Applications Pub Date : 2018-03-14 DOI: 10.4172/2090-5025.1000112

Ashrafi Hr, Aghaei Mz, D. Jalili, P. Beiranvand, M. MasoudGohari

{"title":"Modal Analysis of FGM Plates (Sus304/Al2O3) Using FEM","authors":"Ashrafi Hr, Aghaei Mz, D. Jalili, P. Beiranvand, M. MasoudGohari","doi":"10.4172/2090-5025.1000112","DOIUrl":"https://doi.org/10.4172/2090-5025.1000112","url":null,"abstract":"The present work aims to carry out modal analysis of a functionally graded material (FGM) plate to determine its natural frequencies and mode shapes by using Finite Element Method (FEM). For this purpose, a code was written in MATLAB and linked with ABAQUS. First, a simulation was performed in accordance to other researcher’s model, and then after comparing the obtained results, the accuracy of the present study was verified. The obtained results for natural frequency and mode shapes indicate good performance of user-written subroutine as well as FEM model used in present study. After verification of obtained results, the effect of clamping condition and the material type (i.e., the parameter n) was investigated. In this respect, finite element analysis was carried out in fully clamped condition for different values of n. The results indicate that the natural frequency decreases with increase of n, since with increase of n, the amount of ceramic phase in FGM plate decreases, while the amount of metal phase increases, leading to decrease of the plate stiffness and hence, natural frequency, as the Young modulus of Al2O3 is equal to 380 GPa and the Young modulus of SUS304 is equal to 207 GPa.","PeriodicalId":127691,"journal":{"name":"Bioceramics Development and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128911067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Intentional Replantation with 180° Rotation of a Crown-Root Fracture as a Last Expedient: A Case Report 冠根骨折180°旋转有意再植作为最后的权宜之计:1例报告

Bioceramics Development and Applications Pub Date : 2018-03-06 DOI: 10.4172/2090-5025.1000111

Sajjan Gs, Balaga P, Varma K, Sajjan S

{"title":"Intentional Replantation with 180° Rotation of a Crown-Root Fracture as a Last Expedient: A Case Report","authors":"Sajjan Gs, Balaga P, Varma K, Sajjan S","doi":"10.4172/2090-5025.1000111","DOIUrl":"https://doi.org/10.4172/2090-5025.1000111","url":null,"abstract":"The treatment of complicated crown-root fractures of tooth is often compromised by a fracture apical to the gingival margin and/or bone. This makes isolation difficult and compromises the adhesive union which is critical for a successful treatment. In the present case, the fracture line extended from cervical third of labial surface to cervical third of palatal surface sub gingivally which made the case a complicated crown root fracture. The reattachment of fragments would bring the vulnerable joint in the primary stress bearing area and in the subgingival region. Hence the tooth was removed traumatically with the help of periotome and intentional replantation was done which facilitated the attachment of fragments extra orally. Fragments reattachment was reinforced with the intraradicular fiber post and glass ionomer cement. Then the tooth was rotated 1800 to bring the subgingival fracture line to the labial surface where the occlusal load is less. As the amount of extra oral time is a critical factor in the success of reimplantation, the procedure was completed in 20 minutes. The teeth were stabilized with semi rigid splint for 6 weeks. Later full veneer crown was cemented on the tooth. The patient was followed up with clinical examination for mobility test, gingival sulcus depth and radiographic analysis to analyze the integrity of root, the alveolar cortex and the periodontal space for 12 months. The treatment is successful so far and has rendered satisfaction to both the clinician and patient.","PeriodicalId":127691,"journal":{"name":"Bioceramics Development and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134024576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism of Bonding in Seashell Powder Based Ceramic Composites Used for Binder-Jet 3D Printing 用于粘结剂喷射3D打印的贝壳粉末基陶瓷复合材料的粘结机理

Bioceramics Development and Applications Pub Date : 2018-02-27 DOI: 10.4172/2090-5025.1000108

S. Singamneni, Behera Mp, M. Leguen, H. Zeidler

引用次数: 10

Effect of βTricalcium Phosphate Nanoparticles Additions on the Properties of Gelatin-Chitosan Scaffolds 纳米β磷酸三钙对明胶-壳聚糖支架性能的影响

Bioceramics Development and Applications Pub Date : 2017-10-17 DOI: 10.4172/2090-5025.1000103

K. Maji, S. Dasgupta

{"title":"Effect of βTricalcium Phosphate Nanoparticles Additions on the Properties of Gelatin-Chitosan Scaffolds","authors":"K. Maji, S. Dasgupta","doi":"10.4172/2090-5025.1000103","DOIUrl":"https://doi.org/10.4172/2090-5025.1000103","url":null,"abstract":"Bone tissue engineering, using a synthetic porous scaffold material provides some distinct advantages over autografting and allografting, and it is a rapidly growing alternative approach to heal damaged bone tissue. The current study focuses on fabrication and characterization of nano β-TCP incorporated gelatin- chitosan based composite scaffold for bone regeneration at the sites of musculoskeletal defects and disorders. Gelatin-chitosan scaffold reinforced with beta-tricalcium phosphate (β-TCP) nanopowder was fabricated through freeze drying of material’s suspension. From powder X-ray diffraction and Fourier transform infrared spectrometer analysis the presence of phase pure β-TCP powders in gelatin-chitosan matrix was confirmed. Gelatin-Chitosan-β- TCP (GCT) scaffold exhibited a homogenouos porous structure with an average pore size of 118 ± 11 μm. Micro-CT image confirmed interconnected porous network with homogeneous distribution of β-TCP nanoparticles in Gelatin- Chitosan (GC) matrix. GCT scaffold showed higher compressive strength of 2.45 ± 0.15 MPa as compared to 1 MPa exhibited by neat GC scaffold. Protein adsorption capacity was increased to 22 mg/cc in GCT scaffold from 13 mg/ cc in GC scaffold. Weight loss of GCT scaffold was lower of 26% as compared to 47% in GC scaffold after 8 weeks of incubation in phosphate buffer solution of pH 7.4. Mesenchymal stem cells cultured onto GCT scaffold exhibited higher degree of lamellipodia and filopodia extensions and greater spreading onto GCT scaffold as compared to that in GC scaffold after 7 and 14 days of culture. MTT assay suggested higher degree of proliferation of MSCs cultured onto GCT scaffold as compared to that onto pure GC scaffolds. This study demonstrates that β-TCP incorporation into gelatin- chitosan matrix improved osteogenic potential of the scaffold suitable for bone tissue engineering","PeriodicalId":127691,"journal":{"name":"Bioceramics Development and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116518811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Hydroxyapatite Scaffolds for Bone Tissue Engineering 骨组织工程羟基磷灰石支架

Bioceramics Development and Applications Pub Date : 2017-09-25 DOI: 10.4172/2090-5025.1000e110

S. Dasgupta

引用次数: 8

Electrical Transport Properties and Gamma-Ray Attenuation Coefficient of Some Phosphate Glasses Containing By-Pass Cement Dust 含旁通水泥粉尘的磷酸盐玻璃的电输运特性和γ射线衰减系数

Bioceramics Development and Applications Pub Date : 2017-04-25 DOI: 10.4172/2090-5025.1000100

Salem Sm, Mostafa Ag, Ah-Ram Ma, Yassin Om, Abu Gasser Ra

引用次数: 1

Bioceramics: From Clinic to Concept 生物陶瓷:从临床到概念

Bioceramics Development and Applications Pub Date : 2017-04-22 DOI: 10.4172/2090-5025.1000E108

Bryan J. Mc Entire

引用次数: 0

Influence of Antibiotics on Residual Saliva and Brushing on the Growth of Bacteria on Dental Materials 抗生素残留唾液及刷牙对口腔材料细菌生长的影响

Bioceramics Development and Applications Pub Date : 2017-04-21 DOI: 10.4172/2090-5025.1000102

Abu Bakr E-Bediwi, Ebrahim Rh, A. Sarhan, S. Abdeen

引用次数: 0

An Overview: Biological Organisms That Serves as Nanofactories for Metallic Nanoparticles Synthesis and Fungi Being the Most Appropriate 概述:作为金属纳米颗粒合成的纳米工厂的生物有机体和真菌是最合适的

Bioceramics Development and Applications Pub Date : 2017-04-06 DOI: 10.4172/2090-5025.1000101

N. Khan, M. Khan, J. Jameel, N. Jameel, Saad Umer Abdul Rheman

引用次数: 23

Bioceramic Applications: The Case of Dentistry and Orthopedics 生物陶瓷的应用:以牙科和骨科为例

Bioceramics Development and Applications Pub Date : 2017-03-08 DOI: 10.4172/2090-5025.1000e107

M. Hafid

引用次数: 0