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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"bone-implant interface"”.
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Histological and Mechanical Analysis of Bone/Implant Interface in Female Retired-Breeder Rabbits
Endosseous implants have been accepted as a viable dental and medical adjunct and are now used for multiple dental applications. The majority are placed in patients of relatively advanced age, and, as such, the increased use of implants has raised questions in the areas of bone healing and …
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Finite Element Analysis Of A Test Specimen For Strength Of A Co-polymer Layer At A Bone-implant Interface
… can be applied as an interfacial layer between bone cement and steel implants to improve their performance and life. Finite element (FE) analysis techniques are used to assess the behavior of the interface layer under static and dynamic loading conditions. The material property of the co-polymer …
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A Mechanical and Histological Study of Functionally Graded Hydroxyapatite Implant Coatings
… discovered that titanium was biocompatible with bone, extensive research has been done to improve the osseointegration of dental implants. As advances in medicine continue, the average life span of the population is ever increasing. Today, people of all ages are investing more money and time into …
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Osseointegration potential for heat treated 3D Ti6Al4V scaffolds seeded with mysenchymal stem cells in vitro
… of artificial joints occurs due to the loss of implant fixation. By implementing a 3D porous structure at the bone-implant interface, the ingrowth of bone will permit better and stronger interlocking of the implant to prevent loosening. In this study, it is hypothesized that the seeding of 3D …
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Mechanisms of Osseointegration: Experimental Studies on Early Cellular and Molecular Events in vivo
… determining the early tissue response and bone formation at bone/implant interface are not fully understood. The general aim of the current thesis was to develop a model for studying the early molecular and cellular activities in different bone types, and in response to different implant …
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Development And Application Of Biomimetic Electrospun Nanofibers In Total Joint Replacement
… of osseointegration (direct anchorage of an implant by bone formation at the bone-implant surface) and implant infection (such as that caused by Staphylococcus aureus, S. aureus) are the two main causes of implant failure and loosening. There is a critical need for orthopedic implants that …
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Untersuchungen zu verschiedenen Füllungskomponenten eines porösen, keramischen Knochenersatzstoffes auf Basis von TiO2 und Glas und deren Auswirkungen auf das Einwachsverhalten in vitales Knochengewebe
The substitution of bone tissue is necessary in case of traumatic tissue infraction, after degenerative processes of the skeletal system and finally in all endoprothetic interventions. Respective in the research of open-porous ceramics many experimental and clinical trials confirmed that …
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Electron microscopic investigation of interfaces in materials for orthopedic applications
… Two factors are key to the success of these implants: first, the quality of attachment of the prosthetic joint to the patient's bone, and second, the low generation of wear particles as the components of the prosthesis articulate against each other. This thesis is a study of both of these …
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Biomechanical and histological evaluation of a new zirconia implant in a canine model
Background: Currently titanium implant fixtures are considered as a gold standard because of their biocompatibility and their clinical success rates have been well documented. The esthetic outcome of restorations supported by titanium implants may be compromised if the dark gray color of the …
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Biomechanical assessment of RTSA functional outcomes towards optimising the prosthesis configuration
… device manufacturers to develop divergent implants. This divergence, as well as previous literature regarding RTSA biomechanics, suggest that a configuration that optimises reverse shoulder functional outcomes has yet to be determined and that it can be obtained by combining multiple …
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On the Bone Tissue Response to Surface Chemistry Modifications of Titanium Implants
Background: Surface properties of titanium implants play an important role in osseointegration. From 1990, a lot of engineering techniques have been applied to dental implant productions for improving their clinical performance by changing surface properties. In particular, surface chemistry …
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Investigation of a heirarchical collagen scaffold/3D printed lattice structure designed for use in total knee replacements
… by stress shielding and micromotion at the bone/implant interface. Stress shielding can be reduced using implant materials with a similar modulus to that of the surrounding bone, such as Ultra High Molecular Weight Polyethylene (UHMWPE). Micromotion is reduced by improved implant …
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Driving tissue morphogenetic cascades using tunable nanolayered surface coatings
… and organ regeneration and repair. Biomedical implants attempt to materially replace damaged tissues, restore function, improve mobility, and alleviate pain. However, these implants often fail to recapitulate the original tissue properties. In the context of orthopedic implants, the functional …
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A 3D Radiographic Evaluation of Crestal Bone Changes Around Immediately Loaded Endosseous Implants
… compare the 3-dimensional radiographic crestal bone changes around 4 immediately placed and loaded implants supporting full arch fixed mandibular prosthesis in 2 groups of patients. The Test group comprises of patients with failing mandibular teeth needing extraction. ( due to caries, …