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Dissertations / Theses on the topic 'Porous titanium implant'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Karlsson, Marjam. "Nano-porous Alumina, a Potential Bone Implant Coating." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4452.

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2

Schouman, Thomas. "Modélisation biomécanique et étude de la fonctionnalisation d’un implant personnalisé de reconstruction mandibulaire en titane poreux." Thesis, Paris, ENSAM, 2016. http://www.theses.fr/2016ENAM0065/document.

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Plusieurs études rapportent l’intérêt de structures poreuses synthétiques reproduisant la micro-architecture osseuse pour obtenir une régénération des pertes de substance osseuses. La fusion laser sélective de titane permet de fabriquer des implants poreux aux propriétés mécaniques très proches de celles de l’os et au potentiel d’ostéointégration élevé. Néanmoins, la recolonisation osseuse des pores de ces implants peut être limitée par leurs propriétés élastiques que nous considérons surdimensionnées. Nous avons mis au point une étude expérimentale chez la brebis afin d’évaluer l’influence de

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3

Schmitt, Mary. "Analyses expérimentales et modélisation numérique de l'ostéogenèse au sein d'un implant poreux en titane." Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0011/document.

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Récemment, dans le domaine de la reconstruction tissulaire, des substituts osseux ou scaffold, ont été utilisés comme alternative aux autogreffes. La complexité de l'ostéogenèse au sein d'une structure poreuse rend son observation expérimentale difficile et par conséquent le développement et l'optimisation des scaffolds sont loin d'être achevés. En complément d'expérimentations animales, il est donc nécessaire de développer des modèles numériques afin de mieux comprendre ce processus. L'objectif de ce travail était de développer un modèle numérique capable de reproduire l'ostéogenèse au sein d

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4

Rappe, Katrin Steffanie. "Evaluación de la osteointegración y osteoconducción de implantes de titanio poroso bioactivos: valoración con microscopía electrónica de retrodispersión en un modelo de implantación ortotópica en conejos." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/669592.

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En los últimos años, la ciencia de los biomateriales aplicada a los sustitutos óseos se ha centrado en la investigación de nuevos implantes elaborados con materiales que, además de presentar una estructura de poros interconectados esencial para un adecuado crecimiento óseo que asegure el anclaje del implante, presenten también unas óptimas propiedades biomecánicas. Los estudios más recientes se centran en el desarrollo de implantes a base de metales porosos bioactivos, como el titanio, que presentan buenas propiedades mecánicas al soportar adecuadamente las condiciones de carga. Diversos estud

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5

Leite, Daniel de Oliveira [UNESP]. "Osseointegração de implantes porosos de titânio submetidos ao tratamento biomimético." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/95857.

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Made available in DSpace on 2014-06-11T19:27:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-07-04Bitstream added on 2014-06-13T19:07:01Z : No. of bitstreams: 1 leite_do_me_sjc.pdf: 1900318 bytes, checksum: 493844aa6951b9fcb70dcecafae54a38 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Atualmente, as pesquisas em Implantodontia enfatizam modificações na superfície dos implantes, visando melhorar a osseointegração. Nesse sentido, o presente estudo teve como objetivo avaliar a influência

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6

Thompson, Rebecca. "Effect of locally delivered alendronic acid on bone formation around porous titanium implants." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116924.

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The purpose of this study was to determine the effects of local delivery ofthe bisphosphonate alendronic acid (AA) on bone formation around, withinand on porous titanium implants. Cylindrical rods 9mm in diameter and90mm in length were coated with either 0.2mg or 1.0mg of AA prior tobilateral surgical implantation into the femoral intramedullary canals of 10experimental canines. Twelve weeks after surgery the femora wereharvested and scanned with micro computed tomography (microCT) prior toprocessing for undecalcified thin section histology and analysis withbackscattered scanning electron micr

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7

Leite, Daniel de Oliveira. "Osseointegração de implantes porosos de titânio submetidos ao tratamento biomimético /." São José dos Campos : [s.n.], 2011. http://hdl.handle.net/11449/95857.

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Orientador: Luana Marotta Reis de Vasconcellos<br>Banca: Yasmin Rodarte Carvalho<br>Banca: Renata Falchete do Prado<br>Resumo: Atualmente, as pesquisas em Implantodontia enfatizam modificações na superfície dos implantes, visando melhorar a osseointegração. Nesse sentido, o presente estudo teve como objetivo avaliar a influência da porosidade, bem como do tratamento biomimético (TB), na osteogênese in vivo em implantes de titânio. Foram confeccionados, por meio da metalurgia do pó, implantes de titânio puro grau 2, que foram divididos em seis grupos: a) G1: denso; b) G2: 40% de porosidade; c)

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8

Otsuki, Bungo. "Pore throat size and connectivity determine bone and tissue ingrowth into porous implants : three-dimensional micro-CT based structural analyses of porous bioactive titanium implants." Kyoto University, 2007. http://hdl.handle.net/2433/135706.

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9

Stein, Todd. "Quantitative histological comparison of bone growth into titanium and cobalt-chromium porous coated canine implants." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56631.

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The purpose of this study was to directly compare bone growth into identical porous coated titanium and cobalt-chromium canine implants. A transcortical screw was chosen as the cortical implant model. A straight cylindrical implant was used in cancellous bone. Quantitative analysis was performed using backscattered electron microscopy (BSEM) and computerized digital analysis. Cortical specimens were analyzed after six and twelve week periods of implantation. Bone ingrowth at six weeks for the cobalt-chromium implants averaged 50.4% $ pm$ 10.4% and for the titanium implants averaged 54.1% $ pm$

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10

Van, Zyl Willem Heber. "Investigation into the production and application of porous titanium within the biomedical field." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96097.

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Thesis (MScEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: In this study, commercially pure titanium foam was produced using space holder powder metallurgy techniques. Titanium foam is attractive as a scaffolding material for bone replacement and implants in the body. The porous morphology of the foam promotes osteogenesis, while the mechanical behaviour of the foam is closer to that of bone, which has an elastic moduli range of 5 - 40 GPa. Titanium foam was manufactured from powder mixtures of commercially pure titanium (CPTi) powder mixed with 41.4 wt% ammonium bicarbonate (ABC)

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11

Taniguchi, Naoya. "Effect of pore size on bone ingrowth into porous titanium implants fabricated by additive manufacturing: An in vivo experiment." Kyoto University, 2016. http://hdl.handle.net/2433/215404.

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Subscription articles: Theses and dissertations which contain embedded PJAs as part of the formal submission can be posted publicly by the awarding institution with DOI links back to the formal publications on ScienceDirect.doi:10.1016/j.msec.2015.10.069<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(医学)<br>甲第19578号<br>医博第4085号<br>新制||医||1013(附属図書館)<br>32614<br>京都大学大学院医学研究科医学専攻<br>(主査)教授安達泰治, 教授開祐司, 教授妻木範行<br>学位規則第4条第1項該当

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12

GOIA, TAMIYE S. "Avaliacao in vitro e in vivo de ligas porosas de Ti-13Nb-13Zr obtidas por metalurgia do po." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11744.

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Made available in DSpace on 2014-10-09T12:55:20Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:07:11Z (GMT). No. of bitstreams: 0<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP<br>FAPESP:06/52700-2

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13

Goia, Tamiye Simone. "Implantes porosos à base de titânio, avaliação in vitro e in vivo." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-29052013-094946/.

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O desenvolvimento de biomateriais com estrutura porosa visa permitir uma boa ancoragem biológica através do crescimento do tecido ósseo no interior dos poros, além de no caso de algumas ligas de titânio, proporcionar valores de módulo elástico semelhantes ao do osso, prevenindo assim o insucesso por reabsorção óssea na interface com o implante. O objetivo deste estudo foi avaliar o processamento de implantes porosos à base de titânio produzidos por metalurgia do pó, utilizando polímeros naturais como aditivos (albumina, amidos de arroz, batata, milho e a gelatina), e analisar a osteointegração

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14

BOTTINO, MARCO C. M. "Estudo da osteointegração da liga Ti-13Nb-13Zr obtida por metalurgia do pó com diferentes graus de porosidade." reponame:Repositório Institucional do IPEN, 2005. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11276.

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Made available in DSpace on 2014-10-09T12:50:10Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:02:01Z (GMT). No. of bitstreams: 1 10557.pdf: 8187927 bytes, checksum: d75a44c7b8aac58fb39836dd7d91e5d8 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP<br>FAPESP:03/10049-5

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15

GOIA, TAMIYE S. "Implantes porosos à base de titânio, avaliação in vitro e in vivo." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10202.

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Made available in DSpace on 2014-10-09T12:35:57Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:59:48Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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16

Vasconcellos, Luana Marotta Reis de [UNESP]. "Implantes porosos de titânio puro grau 2: osseointegração em tíbias de coelho." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/100714.

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Made available in DSpace on 2014-06-11T19:30:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-05-23Bitstream added on 2014-06-13T20:21:32Z : No. of bitstreams: 1 vasconcellos_lmr_dr_sjc.pdf: 1195264 bytes, checksum: 6797b053e1594bb9372c91865bdb71e3 (MD5)<br>O objetivo neste estudo foi avaliar e comparar a reparação óssea ao redor de implantes cilíndricos densos e porosos, ambos de titânio puro grau 2, confeccionados via metalurgia do pó, por meio de análise histológica, histomorfométrica e teste mecânico de cisalhamento. Previamente à cirurgia, todos os implantes foram caracterizado

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17

Vasconcellos, Luana Marotta Reis de. "Implantes porosos de titânio puro grau 2 : osseointegração em tíbias de coelho /." São José dos Campos : [s.n.], 2005. http://hdl.handle.net/11449/100714.

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Resumo: O objetivo neste estudo foi avaliar e comparar a reparação óssea ao redor de implantes cilíndricos densos e porosos, ambos de titânio puro grau 2, confeccionados via metalurgia do pó, por meio de análise histológica, histomorfométrica e teste mecânico de cisalhamento. Previamente à cirurgia, todos os implantes foram caracterizados por meio de análise metalográfica e os implantes densos foram submetidos também a um rugosímetro. Em seguida, os implantes foram inseridos em tíbias de coelhos. Concluiu-se, portanto, que a técnica de metalurgia do pó é eficiente para produzir implantes denso

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18

Moreira, Anderson Camargo. "Análise da influência da morfologia porosa de implantes de titânio no processo de crescimento ósseo." reponame:Repositório Institucional da UFSC, 2013. https://repositorio.ufsc.br/xmlui/handle/123456789/122669.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Ciências e Engenharia de Materiais, Florianópolis, 2013.<br>Made available in DSpace on 2014-08-06T17:13:20Z (GMT). No. of bitstreams: 1 321931.pdf: 10691516 bytes, checksum: bc7e3518f2b190bc8afed68069d5d8dd (MD5) Previous issue date: 2013<br>O tecido ósseo está sempre suscetível a lesões, causadas por agentes externos ou patologias, onde em alguns casos a intervenção cirúrgica para instalação de implantes se faz necessária. Dentre os biomateriais utilizados como sustentação para a reg

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19

Грехов, С. К., та S. K. Grekhov. "Обработка давлением в технологиях производства изделий аддитивными методами 3D печати : магистерская диссертация". Master's thesis, б. и, 2020. http://hdl.handle.net/10995/93991.

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Приведен обзор случаев использования изделий, изготовленных по аддитивной технологии для имплантации. Проанализирован международный стандарт на испытания пористых материалов, изготовленных по аддитивной технологии. Выявлены проблемы и предположительные пути их решения при использовании изделий, изготовленных аддитивным методом из сплавов на основе титана. решена краевая задача определения напряженно-деформированного состояния ячеистого имплантат методом конечных элементов в программном модуле ABAQUS. Рассмотрен вопрос влияния геометрии ячеек испытываемого материала на механические свойства кон

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20

Teixeira, Mara Filipa Cajus Valadares. "Mechanical characterization of porous titanium implant materials." Master's thesis, 2015. http://hdl.handle.net/1822/65002.

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Tese de Mestrado (Ciclo de Estudos Integrados Conducentes ao Grau de Mestre em Engenharia de Materiais)<br>Titanium and its alloys are widely used in orthopaedic and dental implants due to their biocompatibility and excellent corrosion resistance. However, titanium has a high Young's modulus (100 GPa) compared to the Young's modulus of bone (10 to 30 GPa). Titanium foams are considered as promising biomaterial for various orthopaedic applications owing to their ability on reducing the biomechanical mismatch, allowing the new-bone tissue in-growth and transportation of the body fluids. How

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21

Khouja, Naseeba 1981. "Bone regeneration in novel porous titanium implants." Thesis, 2010. http://hdl.handle.net/1805/2224.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>The objective of this study was to evaluate the in vivo performance of the novel press-fit dental implant fabricated via electron beam melting (EBM, Southern Methodist Univ.) and compare it to a commercially-available porous-coated press-fit dental implant (Endopore, Innova Corp.). Twelve cylindrical shaped implants 3 mm in diameter x 5 mm long were made by EBM (Southern Methodist Univ.) using Ti6Al4V ELI alloy. Twelve commercial implants (Endopore, Innova Corp.) of the same geometry were used as controls. Samples were implant

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22

HUANG, KUO CHIN, and 黃國晉. "Studying the effects on the mechanical and biological properties of graded porous fluorapatite/titanium composite coatings on titanium metal implant materials by plasma spraying." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/h95gw3.

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碩士<br>南臺科技大學<br>機械工程系<br>105<br>In this study, the fluorapatite (FA), which has higher thermal stability than hydroxyapatite (HA) was mixed as a coating material, and the Ti-6Al-4V substrate was pre-coated with a pure Ti by vacuum plasma spraying (VPS )on the Ti-6Al-4V substrate as bond coat first, and then investgate the mechanical properties and the biological properties of the graded coatings. The results show that In the case of monolayer composite coating, the thickness and porosity of all specimens are decreased with increasing power, and the decreasing proportion of FA / Ti , the coatin

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23

CHIN, WEI-HAN, and 陳維翰. "Study the Effects of Mechanical and Biomedical Properties of Progressive Porous Tantalum Coatings on Titanium Alloy Implant by Vacuum Plasma Spraying." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/g69nj3.

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碩士<br>南臺科技大學<br>機械工程系<br>105<br>This study adopts the use of selected vacuum plasma spray (VPS) as the coating process because it produces fewer oxides and has a stable crystalline nature and excellent adhesion during cladding. Titanium alloy (Ti-6Al-4V) was chosen as the substrate and Ta powder as the coating material. Spraying was carried out in three layers. The melting rate of Ta powder was controlled by applying fine, medium, and coarse powder particle diameters to the inner, middle, and outer layer respectively to form a coating that increases porosity from inside out. In addition, the s

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24

Chiu-FangChen and 陳久芳. "The use of polymer/antibiotic film and bio-activated ceramic to regulate the antimicrobial and bone growth effects on porous titanium beads implant." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/sc78js.

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碩士<br>國立成功大學<br>口腔醫學研究所<br>104<br>Total hip arthroplasty (THA) is an established procedure to restore mobility and to improve quality of life in patients that suffer from severe osteoarthritis or femoral fractures in close proximity to the hip joint. The technology of sintering coated titanium (Ti) bead on titanium prosthesis has been developed for many years. The porous surface of the sintered titanium beads has good roughness and porosity to induce better bone ingrowth. After implantation the formation of a bacterial surface biofilm and compromised immunity at the implant/tissue interface ma

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25

Frosch, Alice. "Das Einwachsverhalten von zylindrischen Implantaten aus einer porösen Ti-6Al-4V-Legierung in die Femurkondyle des Kaninchens." Doctoral thesis, 2020. http://hdl.handle.net/21.11130/00-1735-0000-0005-1514-D.

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