157 research outputs found
Method to improve passive fit of frameworks on implant-supported prostheses: An in vitro study
Oral Surgical Treatment of Patients With Chronic Liver Disease: Assessments of Bleeding and Its Relationship With Thrombocytopenia and Blood Coagulation Parameters
Surface Treatments and Functional Coatings for Biocompatibility Improvement and Bacterial Adhesion Reduction in Dental Implantology
Surface modification of dental implants is a key process in the production of these medical
devices, and especially titanium implants used in the dental practice are commonly subjected to
surface modification processes before their clinical use. A wide range of treatments, such as sand
blasting, acid etching, plasma etching, plasma spray deposition, sputtering deposition and cathodic
arc deposition, have been studied over the years in order to improve the performance of dental
implants. Improving or accelerating the osseointegration process is usually the main goal of these
surface processes, but the improvement of biocompatibility and the prevention of bacterial adhesion
are also of considerable importance. In this review, we report on the research of the recent years
in the field of surface treatments and coatings deposition for the improvement of dental implants
performance, with a main focus on the osseointegration acceleration, the reduction of bacterial
adhesion and the improvement of biocompatibility
Possible Role of Microcrystallinity on Surface Properties of Titanium Surfaces for Biomedical Application
Dental implantology has grown tremendously, since the introduction of titanium. To enhance osseointegration, roughening techniques such as grit blasting, chemical etch, electrochemical anodization have been used with good results. An oxide layer mainly composed of TiO2 covers the surface of dental implants ensuring excellent corrosion resistance and chemical stability. Despite its biological role in achieving bone interlock, surprisingly, little is known about the structure of TiO2, which may be either amorphous or crystalline. Furthermore, at least two crystalline polymorph phases can be found at the bone–implant interface: anatase (tetragonal) and rutile (tetragonal). Therefore, besides the recognized importance of surface topography, energy, and charge, a more refined knowledge of surface chemistry is advisable when studying the bone–implant interface. Recently, sophisticated analysis techniques have been applied to dental implants such as Raman spectroscopy and X-ray diffraction to obtain structural-crystallographic characterization
Overcoming physical constraints in bone engineering: 'the importance of being vascularized'
Ceramic Biomaterials for Dental Implants: Current Use and Future Perspectives
Although titanium implants have the longest traceable record of predictable clinical performance and by far the widest diffusion in the market, some drawbacks have been recently pointed out. Titanium is not a completely bioinert material, since it may elicit allergenic reactions and is capable to diffuse not only within the adjacent tissues, which is proven by the elevated concentrations found in peri-implant bone and regional lymph nodes, but also systemically. Ceramic materials for oral application have been used for 40 years. Presently, the material of choice is yttria-stabilized tetragonal zirconia, which presents excellent mechanical and tribological properties together with biocompatibility. Concerns remain about the long-term durability of the material, owing to the report of in vivo failures that were caused by the low-temperature degradation of zirconia. To address this issue, research has developed improved oxide-based materials such as alumina–zirconia composites along with non-oxidic ceramics such as silicon nitride
Plasma of argon increases cell attachment and bacterial decontamination on different implant surfaces
Immediate Postextractive Dental Implant Placement with Immediate Loading on Four Implants for Mandibular-Full-Arch Rehabilitation: A Retrospective Analysis.
Alumina-Zirconia composites functionalised with laminin-1 and laminin-5 for dentistry: effect of protein adsorption on cellular response
Use of sodium hyaluronate and synthetic amino acid precursors of collagen for the symptomatic treatment of mucositis in patients undergoing haematopoietic stem cell transplants
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