Download or read book Evaluation of the Biocompatibility and Micromechanical Properties of Experimental Dental Adhesives written by Hoda Moussa and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to investigate the biocompatibility and micromechanical properties of newly synthesized antibacterial monomer and cross-linker functional surfactants into a commercially available dental adhesive (Single Bond, 3M ESPE, Saint Paul, MN, USA) at three concentrations (0.05, 0.1, 0.25 mg/mg). All groups were analyzed by evaluation of micro-tensile bond strength, ultimate tensile strength, cell viability, antibacterial properties, and surface micro-hardness. Scanning electron microscopy (SEM) was used for interfacial characterization. Human extracted molars were used as a substrate for bonding adhesives for the micro-tensile bond strength (MTBS) and scanning electron microscopy (SEM) studies. Twenty resin-dentin beams (0.9 ± 0.1 mm2) per group were evaluated at 24 hrs and 6 mos for MTBS. Slabs of ~1 mm were analyzed in the SEM for surface characterization. For the ultimate tensile strength (UTS), ten hour-glass shaped specimens (10 x 2 x 1mm) per group were tested at 24 hrs, 1 wk, and 6 mos. To evaluate toxicity, four disc-shaped specimens (5 x 2 mm) per group were incubated with human gingival fibroblasts (HGF). Antibacterial properties were evaluated by incubating three disc-shaped specimens (8 x 1 mm) per group with a strain of caries-producing bacteria S. mutans. Within the limitations of this in vitro study, it was concluded that incorporation of antibacterial monomer and cross-linker additives may be a viable option to help increase the longevity of tooth-colored adhesive restorations. Single Bond adhesive modified with 0.1 mg/mg monomer appears to provide the optimal balance for biocompatibility and micromechanical properties.

Download or read book Adhesives written by Anna Rudawska and published by BoD – Books on Demand. This book was released on 2016-11-23 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents some information regarding adhesives which have applications in industry, medicine and dentistry. The book is divided into two parts: "Adhesives Applications in Medicine and Dentistry" and "Properties of Adhesive." The aim of such a presentation is to present the usage in very different aspects of application of the adhesives and present specific properties of adhesives. Adhesives' advantageous properties and relatively uncomplicated processing methods contribute to their increasing application and their growing popularity in the industry, medicine and other branches. Some adhesives represent properties superior to those of most adhesive materials, due to their excellent adhesion and chemical resistance. A wide variety of adhesives' considerable flexibility in modification of properties of adhesives allows adjusting the composition to particular applications.

Download or read book Adhesion in Pharmaceutical Biomedical and Dental Fields written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2017-06-15 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only book to cover adhesion in pharmaceutical, biomedical and dental fields The phenomenon of adhesion is of cardinal importance in the pharmaceutical, biomedical and dental fields. A few eclectic examples will suffice to underscore the importance/relevance of adhesion in these three areas. For example, the adhesion between powdered solids is of crucial importance in tablet manufacture. The interaction between biodevices (e.g., stents, bio-implants) and body environment dictates the performance of such devices, and there is burgeoning research activity in modifying the surfaces of such implements to render them compatible with bodily components. In the field of dentistry, the modern trend is to shift from retaining of restorative materials by mechanical interlocking to adhesive bonding. The book contains 15 chapters written by internationally-renowned subject matter experts and is divided into four parts: Part 1: General Topics; Part 2: Adhesion in Pharmaceutical Field; Part 3: Adhesion in Biomedical Field; and Part 4: Adhesion in Dental Field. The topics covered include: Theories or mechanisms of adhesion; wettability of powders; role of surface free energy in tablet strength and powder flow behavior; mucoadhesive polymers for drug delivery systems; transdermal patches; skin adhesion in long-wear cosmetics; factors affecting microbial adhesion; biofouling and ways to mitigate it; adhesion of coatings on surgical tools and bio-implants; adhesion in fabrication of microarrays in clinical diagnostics; antibacterial polymers for dental adhesives and composites; evolution of dental adhesives; and testing of dental adhesive joints.

Download or read book Biocompatibility of Dental Materials written by Gottfried Schmalz and published by Springer Science & Business Media. This book was released on 2008-10-10 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and scientifically based overview of the biocompatibility of dental materials. Up-to-date concepts of biocompatibility assessment are presented, as well as information on almost all material groups used in daily dentistry practice. Furthermore, special topics of clinical relevance (e.g,, environmental and occupational hazards and the diagnosis of adverse effects) are covered. The book will: improve the reader’s ability to critically analyze information provided by manufacturers supply a better understanding of the biocompatibility of single material groups, which will help the reader choose the most appropriate materials for any given patient and thus prevent adverse effects from developing provide insights on how to conduct objective, matter-of-fact discussions with patients about the materials to be used in dental procedures advise readers, through the use of well-documented concepts, on how to treat patients who claim adverse effects from dental materials feature clinical photographs that will serve as a reference when analyzing clinical symptoms, such as oral mucosa reactions.

Download or read book Biocompatibility Or Cytotoxic Effects of Dental Composites written by Michel Goldberg and published by Coxmoor Publishing Company. This book was released on 2009 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of resin-containing materials has resulted in a major advance in restorative dentistry as mercury-containing silver amalgam are used less in the dental practice. However, there is still a debate on the in vitro and in vivo biological properties of dental resins now considered as potential amalgam substitutes. Differing answers between clinical data as opposed to what is known about the tolerability or toxicity of resin-containing materials, creates some benefit/risk interrogations for dental practitioners. In order to reduce the gap between basic science and the clinic, a dialogue has been established between researchers in biomaterials and in biology, and also between researchers and clinicians. A group of well-recognized experts was asked by the Regional European Organization of the Federation Dentaire Internationale to report on the intrinsic properties, the biocompatibility or cytotoxic effects of dental composites. Consequently, the physico-chemical properties of resin based composites and dental adhesives are reviewed in this text. The interaction of resin-containing materials with soft dental and calcified tissues is then studied and adverse effects are reported in a series of in vitro and in vivo studies. In order to reconcile differing evaluations, laboratory data are compared with human clinical data. In addition, a final chapter aims to provide some insights on emerging trends in dental material research. A series of investigations on a new restorative cement are given as examples of future developments. The gap between the bench and the chair side is still open, but answers are now better identified in this book.

Download or read book The Adhesive Effects in the Dental Restoration written by Raul Vargas and published by . This book was released on 2008 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dental field shows proliferation in the market of new adhesives. The purpose of this study is to evaluate the mechanical properties on total restoration, based on the manufacturer's technical specifications, experimental and mechanical test results. The optimal dentist's selection will be when the most appropriate adhesive can be chosen for one specific restoration, avoiding wasted time, material and exposure to marginal infections with a failure restoration. This research was developed in stages. The first step is the study of the tooth morphological information. Following, there is the structure identification type and the chemical composition of six different pure adhesives. Next, perform the X-R Diffraction, Energy Disperse Spectroscopy (EDS), and Scanning Electron Microscopy (SEM). The final step is to perform the mechanical test, computer simulation, and discuss the results to obtain the best dental adhesive with and the new finding. Result: The samples show an amorphous structure and a chemical composition in the X-R Diffraction, SEM and EDS experiments. The mechanical test shows real mechanical properties under tension and sheer rupture stress. Poisson ratio, strain, and another relationship will be used in the computer simulation test. Results will be reflected in the Discussion and Conclusion. Significance: The first conclusion is that the amorphous structure is present in all six adhesives experiments. In addition, it shows strong possibilities of bonding with another neighbor's molecules. The discussion will be extended to the bonding advantages for this type of structure in the total dental restoration. Findings: First, we found that the time delay of photo polymerization was controlled with the variable water evaporation of the etching treatment. In addition, it was found that the variable size of the wavelength of the curing light obtained better molecular organization and avoided internal stress and bonding defect. Lastly, the element's chemical composition was a variable that provided the opportunity to predict the type of bond and strength.

Download or read book Alloy Materials and Their Allied Applications written by Inamuddin and published by John Wiley & Sons. This book was released on 2020-06-16 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alloy Materials and Their Allied Applications provides an in-depth overview of alloy materials and applications. The 11 chapters focus on the fabrication methods and design of corrosion-resistant, magnetic, biodegradable, and shape memory alloys. The industrial applications in the allied areas, such as biomedical, dental implants, abrasive finishing, surface treatments, photocatalysis, water treatment, and batteries, are discussed in detail. This book will help readers solve fundamental and applied problems faced in the field of allied alloys applications.

Download or read book Biocompatibility of Dental Adhesives written by Antonija Tadin and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The accomplishment of developing a truly adhesive bond between a restorative material and the natural tooth structures is the goal of adhesive dentistry. Dentine adhesive systems come into close contact with dental and oral tissue, especially the pulp and gingival cells. Due to this close and long-term contact, adhesives should exhibit a high degree of biocompatibility. Biocompatibility is one of the most important properties of dental materials, and adhesives are no exception. It has been long demonstrated that different components of adhesives can be released. Numerous in vitro investigations have shown that released monomers and other components can cause damage to cultured cells. In addition, many in vivo studies have shown that uncured components which reach the pulpal space cause inflammatory response and tissue disorganization. Only a combination of various in vitro and in vivo tests can provide an overview of the interaction of biomaterials with the host. Therefore, it is necessary on a regular basis to carry out and re-verify the biological compatibility of the increasing number of new dental materials. Adhesives should be biofunctional, protective, and preventive, with health-promoting effects that contribute to a better prognosis for restorative treatments and its biocompatibility.

Download or read book BiodentineTM written by Imad About and published by Springer Nature. This book was released on 2021-10-20 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive guide to BiodentineTM, an innovative biocompatible and bioactive material based on pure tricalcium silicate that can permanently replace dentin and can also serve as a temporary enamel substitute. Although BiodentineTM has been widely used across the world for the past decade, this is the first book to be devoted to its properties, interactions with the soft and hard tissues, and its multiple clinical applications. The coverage encompasses applications in primary and permanent teeth, in specialties as diverse as restorative dentistry, endodontics, paediatric dentistry, dental traumatology, and prosthetic dentistry. BiodentineTM application both in vital pulp therapy and endodontic procedures is illustrated and clinical step by step protocols are provided. The book provides a detailed update on BiodentineTM use to preserve the pulp vitality in direct/indirect pulp capping, pulpotomy and irreversible pulpitis treatment. It also details BiodentineTM use for non-vital teeth treatment in indications such as root/furcation perforation repair, apexification as well as in regenerative endodontic procedures. BiodentineTM: Properties and Clinical Applications will be a rich source of guidance and information for all dentists as well as dental students and academics.

Download or read book Effect of Halloysite Aluminosilicate Clay Nanotube Incorporation Into Bonding Agents on Shear Bond Strength to Human Dentin written by Mohammed Saeed Alkatheeri and published by . This book was released on 2013 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: In adhesive dentistry, obtaining a good bond is a fundamental goal. It has been suggested that filler addition to the adhesives would increase the bonding strength of the adhesive layer. Halloysite aluminosilicate nanotubes (HNTs) are biocompatible, hydrophilic, durable, and have high mechanical strength. These advantages make them good candidates to be used as reinforcing agents for improving the properties of dental adhesives. The objective of this study was to evaluate the effect of incorporating HNTs into a commercial two-step etch-and-rinse adhesive system or one-step self-etch adhesive system on dentin shear bond strength. HNTs were incorporated into the two commercial adhesive systems in 0 wt%, 5 wt%, 10 wt%, and 20 wt%. The commercial control adhesives and the experimental adhesives were used to bond occlusal dentin of 120 extracted human molar teeth and then tested for shear bond strength by a universal testing machine with a semi-circular edge at a crosshead speed of 1.0 mm/min. Debonded specimens were examined under light microscopy to evaluate the fracture pattern. Resin-dentin interface were evaluated under scanning electron microscopy (SEM) after bonding dentin slabs using commercial control adhesives and experimental adhesive that showed numerically highest shear bond strength from each adhesive system. Two-way ANOVA was used to evaluate the effects of adhesive system and nanofiller content on shear bond strength. Pair-wise comparisons between groups were made using Fisher's (LSD) (p

Download or read book Handbook of Bioceramics and Biocomposites written by Iulian Vasile Antoniac and published by Springer. This book was released on 2016-05-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook describes several current trends in the development of bioceramics and biocomposites for clinical use in the repair, remodelling, and regeneration of bone tissue. Comprehensive coverage of these materials allows fundamental aspects of the science and engineering to be seen in close relation to the clinical performance of dental and orthopaedic implants. Bioceramics and biocomposites appear to be the most dynamic area of materials development for both tissue engineering and implantable medical devices. Almost all medical specialties will continue to benefit from these developments, but especially dentistry and orthopaedics. In this Handbook, leading researchers describe the use of bionanomaterials to create new functionalities when interfaced with biological molecules or structures. Also described are technologies for bioceramics and biocomposites processing in order to fabricate medical devices for clinical use. Another important section of the book is dedicated to tissue regeneration with development of new matrices. A targeted or personalized treatment device reduces drug consumption and treatment expenses, resulting in benefits to the patient and cost reductions for public health systems. This authoritative reference on the state-of-the-art in the development and use of bioceramics and biocomposites can also serve as the basis of instructional course lectures for audiences ranging from advanced undergraduate students to post-graduates in materials science and engineering and biomedical engineering.

Download or read book Dental Composite Materials for Direct Restorations written by Vesna Miletic and published by Springer. This book was released on 2017-11-25 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers both basic scientific and clinically relevant aspects of dental composite materials with a view to meeting the needs of researchers and practitioners. Following an introduction on their development, the composition of contemporary composites is analyzed. A chapter on polymerization explains the setting reactions and light sources available for light-cured composites. The quality of monomer-to-polymer conversion is a key factor for material properties. Polymerization shrinkage along with the associated stress remains among the most challenging issues regarding composite restorations. A new classification of dental composites is proposed to offer more clinically relevant ways of differentiating between commercially available materials. A review of specific types of composites provides an insight into their key issues. The potential biological issues of dental composites are reviewed in chapters on elution of leachable substances and cariogenicity of resin monomers. Clinical sections focus on material placement, finishing procedures, and the esthetics and clinical longevity of composite restorations. Bonding to tooth tissues is addressed in a separate chapter, as is the efficiency of various composite repair methods. The final chapter discusses future perspectives on dental composite materials.

Download or read book Dental Materials and Their Selection written by William Joseph O'Brien and published by Quintessence Publishing (IL). This book was released on 1997 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. A Comparison of Metals, Ceramics, and Polymers. -- 2. Physical Properties. -- 3. Color and Appearance. -- 4. Surface Phenomena and Adhesion to Tooth Structure. -- 5. Gypsum Products. -- 6. Polymers and Polymerizations: Denture Base Polymers. -- 7. Polymeric Restorative Materials: Composites and Sealants. -- 8. Abrasion, Polishing, and Bleaching. -- 9. Impression Materials. -- 10. Waxes. -- 11. Dental Cements. -- 12. Structure and Properties of Metals and Alloys. -- 13. Dental Amalgams. -- 14. Direct Gold Filling Materials. -- 15. Precious Metal Casting Alloys. -- 16. Alloys for Porcelain-Fused-to-Metal Restorations. -- 17. Casting. -- 18. High-Temperature Investments. -- 19. Base Metal Casting Alloys. -- 20. Orthodontic Wires. -- 21. Dental Porcelain. -- 22. Soldering, Welding, and Electroplating. -- 23. Dental Implant Materials.

Download or read book Insights into Various Aspects of Oral Health written by Jane Manakil and published by BoD – Books on Demand. This book was released on 2017-09-20 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chronic inflammation such as seen in periodontitis and its bidirectional influence on the systemic health has been of increased interest for a decade. In this text book, we have explored the biological and genetic pathways by which periodontal diseases may influence these disease processes and vice versa. Occlusal rehabilitation using the MEAW technique for the effective treatment of class II deep bite malocclusion and the timely management of cleft lip and palate to benefit the holistic welfare of the patient are presented here. The book addresses the development of bioinspired functionally graded dental restorative materials and also a simulation method that can improve clinical durability and enhance the functional capability of the dentition and indirect prostheses. In conclusion, various pathways for the promotion of oral health with evidence-based concepts are considered.

Download or read book Polymer Interface and Adhesion written by Wu and published by CRC Press. This book was released on 1982-03-31 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poly mer Interface and Adhesion provides the critical basis for further advancement in thisfield. Combining the principles of interfacial science, rheology, stress analysis, and fracturemechanics, the book teaches a new approach to the analysis of long standing problemssuch as: how is the interface formed; what are its physical and mechanical properties;and how does the interface modify the stress field and fracture strength of the material.The book offers many outstanding features, including extensive listings of pertinent references, exhaustive tabulations of the interfacial properties of polymers, critical reviews ofthe many conflicting theories, and complete discussions of coupling agents, adhesion promotion, and surface modifications. Emphasis is placed on physical concepts and mechanisms, using clear, understandable mathematics.Polymer Interface and Adhesion promotes a more thorough understanding of the physical, mechanical, and adhesive properties of multiphase, polymer systems. Polymer scientistsand engineers, surface chemists, materials scientists, rheologists, as well as chemical andmechanical engineers interested in the research, development or industrial applications ofpolymers, plastics, fibers, coatings, adhesives, and composites need this important newsource b

Download or read book American Journal of Dentistry written by and published by . This book was released on 1995 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book PEEK Biomaterials Handbook written by Steven M. Kurtz and published by William Andrew. This book was released on 2011-11-09 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: PEEK biomaterials are currently used in thousands of spinal fusion patients around the world every year. Durability, biocompatibility and excellent resistance to aggressive sterilization procedures make PEEK a polymer of choice, replacing metal in orthopedic implants, from spinal implants and hip replacements to finger joints and dental implants. This Handbook brings together experts in many different facets related to PEEK clinical performance as well as in the areas of materials science, tribology, and biology to provide a complete reference for specialists in the field of plastics, biomaterials, medical device design and surgical applications. Steven Kurtz, author of the well respected UHMWPE Biomaterials Handbook and Director of the Implant Research Center at Drexel University, has developed a one-stop reference covering the processing and blending of PEEK, its properties and biotribology, and the expanding range of medical implants using PEEK: spinal implants, hip and knee replacement, etc. Covering materials science, tribology and applications Provides a complete reference for specialists in the field of plastics, biomaterials, biomedical engineering and medical device design and surgical applications