Download or read book Surface Modification of Titanium Orthodontic Implants written by Abdulqadir Rampurawala and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Orthodontic miniscrews have had a considerable impact on modern orthodontic treatment, not only by providing a new source of anchors for anchorage-demanding cases, but also for force management and control. Whilst miniscrews need to be mechanically stable during treatment to provide sufficient anchorage and predictable force control, as temporary anchorage devices they need also be easy to remove after orthodontic treatment. These requirements differentiate orthodontic miniscrews from dental implants - which once placed, are not to be removed - and dictate the approach as to how their clinical performance can be optimized. Over the past decade, various titanium surface modifications and improvements in implant surface topography have shown to enhance osseointegration of endosseous dental implants. Some of these techniques have helped provide a similar enhancement of the biomechanical potential of orthodontic miniscrews as well. In this perspective, we present a brief discussion on all such reported techniques followed by a detailed account of the most recently proposed ultraviolet photofunctionalization technique - a novel chair-side surface modification method.

Download or read book Surface Modification of Titanium Dental Implants written by Karan Gulati and published by Springer Nature. This book was released on 2023-02-27 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive technical and scientific overview of the surface modification of titanium dental implants. Coverage ranges from basic concepts of surface modification to advanced micro- and nano-engineering strategies employed to achieve augmented bioactivity to meet the needs of compromised patient conditions. A special focus of the book is advanced state-of-the-art electrochemically anodized nanostructures fabricated on implants towards enhanced bioactivity and local therapy. Surface Modification of Titanium Dental Implants will keep you current in the domain of titanium dental implants and will provide an improved understanding of their performance and application. The book will benefit engineers, clinicians, and researchers in biomaterials, biomedical engineering, dental and bone implants, nano-engineering, and technology.

Download or read book The Effects of Surface Modification on the Osseointegration of Titanium Dental Implants written by John Samuel Lawrence Colombo and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Modification of Titanium for Biomaterial Applications written by Kyo-Han Kim and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book starts with concepts of bone, its structure, remodelling, materials for implants and implant testing methods. Calcium phosphate ceramics and need for titanium surface modification are detailed in the initial chapters. Surface modification techniques include plasma spraying, sol-gel, biomimetic, electrochemical, laser, sputtering and ion-implantation methods. Chapters 5 to 19 deal with these modification techniques. Chapters 20-22 deal with less-common methods titanium nitride coating, protein modification, diamond like carbon coating and ultraviolet treatment. Substituting the apatite lattice with other cations like silicon, magnesium, sodium, carbon, etc is provided. The chapters involving these techniques begin with a small introduction about that technique and go on to explain the underlying principles, methodology and properties of the coats. According to the authors, the book gives a complete overview of almost all the surface modification techniques known, as applied to titanium biomaterials.

Download or read book Surface Modification for the Enhancement of Osseointegrated Titanium Implants for Dental Application written by Lertrit Sarinnaphakorn and published by . This book was released on 2009 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nano Enhanced Surface Modification of Titanium Dental Implants for Improving Osseointegration and Biocompatibility written by Ranj Salaie and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Surface Modified Titanium Implants on Osseointegration in Irradiated Bone written by Junyuan Li and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Effects of Surface-modified Titanium Implants on Osseointegration in Irradiated Bone" by Junyuan, Li, 黎俊媛, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Radiotherapy is a common treatment for head and neck cancers. However, it compromises bone healing. Titanium implanthas been shown to be a predictable method for replacing missing teeth. Clinical studies revealed that implant failure rate in irradiated regionwas high. Many studies showed that modifications of implant surface could enhance implant osseointegration by improving cell attachment, cell growth and bone formation. Nevertheless, there were few studies investigating the effect of implant surface modification on osseointegration in irradiated bone. In the first experiment, the effect of fluoride-modified (FM) titanium surface on irradiated osteoblast attachment was assessed. The morphology and chemical composition of FM surface was assessed by SEM, AFM and XPS. Osteoblasts received 0Gy, 2Gy, 4Gy, 6Gy, 8Gy, 10Gy radiation. Cell number, fluorescence intensity and cell area of irradiated osteoblasts were assessed. The number of osteoblasts onFM surface was fewer than those on NF surface after 0Gy, 2Gy, 8Gy and 10Gy radiation. Cell area of osteoblasts on FM surface was less at 2Gy radiation but larger at 6Gy radiation than on NF surface. The fluorescence intensity of osteoblasts was also higher on NF surface than on FM surface after receiving 0Gy, 2Gy, 4Gy, 10Gy radiation. In the second experiment, an animal model was established to study the effect of radiation on osseointegration. Rabbits were divided into 15Gy and 30Gy radiation groups. Only the left leg was exposed to radiation, and the right leg was protected from radiation. Totally, 24 implants were inserted. Implant stability quotient (ISQ), bone volume to total volume (BV/TV), bone-to-implant contact (BIC), and bone growth rate were measured. After 15Gy and 30Gy of radiation, ISQ and BV/TV were significantly reduced. At week 3, 15Gy radiation group displayed slower bone growth rate comparing with the control side. Fluorochrome results showed that the 30Gy radiation side had a significantly slower apposition of new bone.In addition, BIC on30Gy radiation side was notablypoorer than that on 15Gy radiation side and on 30Gy control side. Based on the animal model, the third experiment investigated effects of calcium phosphate nanocrystals on implant osseointegration in irradiated bone. Titanium implants treated with nano-scale calcium phosphate (CaP) crystals served as the test group while ones with dual acid-etching only served as the control group. The left leg of rabbits received 15Gy radiation and implants were placed in the irradiated leg. Significant higher ISQ was detected in the nano-CaP group at week 12. The bone growth rate in nano-CaP group was more than doubled than the control group at both week 6 and week 9. The fourth experiment evaluated artifacts on micro-CT images caused by titanium dental implant. Implants were assigned into four groups: (1) implant only; (2) implant with covering screw; (3) implant with resin embedding; and (4) implant with covering screw and resin embedding. Each implant was scanned by micro-CT at 3 angulations. Implant angulation was the most determining factor followed by resin embedding. Minimal metallic artifacts were obtainedin non-embedded implants with its axis paralleling to X-ray. DOI: 10.5353/th_b5312315 Subjects: Osseointegration Dental implants

Download or read book Surface Modifications of Titanium written by Dharmendra Chadalavada and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Modification of Titanium Implants for Improved Tendon Adhesion written by Hannah Feinberg and published by . This book was released on 2021 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Modification of Titanium and Titanium Alloys to Enhance Bone Healing written by Yasmeen Janzeer and published by . This book was released on 2013 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Modification of Titanium Alloy Implants written by Martin Browne and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Modification of Titanium Substrates with Polymer Brushes to Control Cell Adhesion for Bioapplications written by Jenny E. Raynor and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Modification of the surface chemistry of materials used as implants in biomedical applications affords the ability to control cell adhesion, prevent inflammation and enhance integration with the host. Titanium and its alloys are strong and lightweight thereby making them desirable for applications such as hip and knee replacements, dental implants, and cardiac pacemaker implants. However, the lifetime of these implants is often limited by poor incorporation into the surrounding bone which results in loosening and wear. In order to overcome these limitations we have studied the modification of titanium substrates with a self-assembled monolayer that can be used to perform surface-initiated atom transfer radical polymerization (SI-ATRP) of a monomer to afford polymer brushes that effectively prevent the adhesion of cells. In addition, the polymer brushes afford the ability to tether a peptide sequence. Specific peptides containing adhesion sequences have been tethered to the polymer brushes. The resulting surfaces promote cell adhesion and osteoblast differentiation, thereby increasing bone tissue formation around the implant resulting in better incorporation of the implant.

Download or read book Surface Modification of Titanium for Hard tissue Engineering Applications written by Murali Krishna Duvvuru and published by . This book was released on 2018 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium (Ti) and its alloys are widely used in dental and orthopedic applications due to their advantages such as biocompatibility, excellent corrosion resistance and mechanical properties like low Young's modulus, low density and high strength as compared to other metallic implants. However, lack of interaction with host tissue (e.g. bioinertness), higher modulus of elasticity as compared to that of bone and resultant stress shielding cause fibrous tissue formation around the implant where the interaction with tissue is minimized. These will eventually cause the implant loosening and revision surgery is needed. Surface modification of Ti by increasing surface roughness and/or incorporation of trace elements where cellular interaction is improved, is a promising technique to enhance the bioactivity. Surface modification can be achieved through alkali treatment, acidic treatment, sol-gel, and electrochemical anodization. Among these techniques, anodization has received significant attention as it allows formation of uniform titanium nanotubes throughout the material. Although this method is simple, low cost and controllable, modification of complicated geometries by this method is a concern. On the other hand, alkali treatment method is available to increase the surface roughness of metals with various geometries by formation of porous network structure. To further increase the bioactivity of biomaterial and enhance the osteointegration, incorporation of trace elements such as strontium (Sr), magnesium (Mg), silver (Ag) and iron (Fe) is beneficial. The objective of this research is to optimize the anodization and alkali treatment techniques, along with Fe deposition using physical vapor deposition (PVD) method. Different anodization conditions, alkali concentrations and Fe coating thicknesses were selected and their effects on surface morphology was studied. Finally, the effects of surface modification alone or in combination with Fe deposition on bone cell interaction will be investigated.

Download or read book SURFACE MODIFICATION OF ORTHODONTIC MINI IMPLANTS WITH H2O2 GEL FOR ITS ANTIADHERENT AND ANTIBACTERIAL PROPERITES IN THE PRESENCE OF STREPTOCOCCUS MUTANS written by Kaitlyn S Marie Schiels and published by . This book was released on 2017 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Widespread applications have made the use of mini-implants common throughout orthodontic treatment. The mini-implant provides an osseous anchor that is easily inserted, minimally invasive, and easily removed. The failure rate of mini-implants is estimated around 15%; this is high when juxtaposed with an endosseous implant. The majority of failures occur early; this results from a weakened bone-implant interface usually accompanied by soft tissue inflammation. This inflammation is exacerbated by poor oral hygiene and in areas of non-keratinized tissue, which provides an inadequate soft tissue barrier to bacterial challenges. Streptococcus mutans is involved in initial biofilm formation and has been implicated in endosseous peri-implantitis in the absence of periodontal disease. S. mutans is acidogenic, and has been shown to negatively affect the topography of titanium surfaces. Mini-implants are mainly comprised of titanium alloys due to their biocompatibility and mechanical strength. Literature suggests that enhancing the native TiO2 on titanium surfaces in the presence of UV light improves osseointegration, increases antibacterial effects, and increases soft tissue adhesion. The goal of this study was to enhance the TiO2 surface of mini-implants and evaluate the resultant anti-adherent, antibacterial, and topographical changes in the presence of S. mutans. Orthodontic mini-implants compromised of Ti6I4V, (Wrought Titanium-6 Aluminum 4 Vanadium ELI), were modified according to the parameters set by Unosson et al, 2015. These samples were then exposed to Streptococcus mutans and incubated at 37° C. Initial contact of viable bacteria was evaluated after 4 hours using resazurin dye that was measured on a fluorescence plate reader. Bacterial growth was evaluated at 4, 8, and 24 hours using a spectrometer to assess turbidity. Four samples were also plated to evaluate growth. SEM images were taken prior to and after treatment to assess topographical changes. ANOVA and pair-wise post-hoc tests were used to analyze the data. The amount of viable bacteria on modified mini-implant surfaces after 4 hours was significantly decreased when compared to controls (p

Download or read book Current Concepts in Dental Implantology written by Ilser Turkyilmaz and published by BoD – Books on Demand. This book was released on 2015-02-25 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implant dentistry has changed and enhanced significantly since the introduction of osseointegration concept with dental implants. Because the benefits of therapy became apparent, implant treatment earned a widespread acceptance. Therefore, the need for dental implants has caused a rapid expansion of the market worldwide. Dental implantology continues to excel with the developments of new surgical and prosthodontic techniques, and armamentarium. The purpose of this book named Current Concepts in Dental Implantology is to present a novel resource for dentists who want to replace missing teeth with dental implants. It is a carefully organized book, which blends basic science, clinical experience, and current and future concepts. This book includes ten chapters and our aim is to provide a valuable source for dental students, post-graduate residents and clinicians who want to know more about dental implants.

Download or read book Surface Modification of Titanium Implants by Grit blasting with Novel Bioactive Glasses written by Farah Nabeel Mohammed Tahir Al-Khayyat and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current Concepts in Dental Implantology written by and published by BoD – Books on Demand. This book was released on 2022-08-17 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Concepts in Dental Implantology - From Science to Clinical Research presents comprehensive information on all modern scientific and clinical methods used in today's dental implantology. Chapters address such topics as osseointegration and basic science in dental implantology, current trends and biomaterials of clinical relevance, advanced clinical techniques, peri-implantitis, and prosthodontic trends in dental implantology. This book provides a better understanding of the scientific approach to basic concepts in dental implantology and presents the results of many clinical studies.