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Maria franz teeth8/7/2023 Post operative pain caused by galvanic shock can be a source of discomfort in the metallic restoration to an occasional patient. As long as metallic dental restorative materials are employed, there seems to be little possibility that these galvanic currents can be eliminated. ![]() It has been proven that small galvanic currents associated with electrogalvanism are continually present in the oral cavity. High noble alloys used in dentistry are so stable chemically that they do not undergo significant corrosion in the oral environment, the major component of these alloys are gold, palladium, and platinum. Corrosion can severely limit the fatigue life and ultimate strength of the material leading to mechanical failure of the dental materials. Biocompatibility of the implants and its associated structure is important for proper function of the prosthesis in the mouth. Biomaterial surface chemistry, topography (roughness), and type of tissue integration (osseous, fibrous, and mixed) correlate with host response. , For dental implants, biocompatibility depends on mechanical and corrosion/degradation properties of the material, tissue, and host factors. Corrosion, the graded degradation of materials by electrochemical attack is of concern particularly when a metallic implant, metallic filling, or orthodontic appliances are placed in the hostile electrolytic environment provided by the human mouth. Factors such as temperature, quantity and quality of saliva, plaque, pH, protein, and the physical and chemical properties of food and liquids as well as oral health conditions may influence corrosion. They are subject to larger temperature variation than most other parts, coping with cold of ice (0☌) to hot coffee and soup. Teeth function in one of the most inhospitable environments in the body. ![]() Many gram-negative and gram-positive bacterial species form a major part of dental plaque around the teeth and also colonize the mucosal surfaces. Moreover, saliva is a hypotonic solution containing bioactonate, chloride, potassium, sodium, nitrogenous compounds, and proteins. Saliva has several viruses, bacteria, yeast and fungi and their products, such as organic acids and enzymes, epithelial cells, food debris, and components from gingival crevicular fluid. Yet, for the most part, oral tissues remain healthy. Oral tissues are exposed to a veritable bombardment of both chemical and physical stimuli as well as metabolism of about 30 species of bacteria (the total salivary bacterial count is said to be five thousand million/ml of saliva). It is also the habitat of microbial species that are kept wet by saliva. The mouth is the portal entry of the human body. ![]() An overview of the corrosion aspect of dental implants (titanium and its alloys). Keywords: Biocompatibility, corrosion, dental implants, titanium, titanium alloys How to cite this article: Chaturvedi T P. This knowledge will also be helpful in exploring possible research strategies for probing the biological properties of materials. This article highlights a review of the various aspects of corrosion and biocompatibility of dental titanium implants as well as suprastructures. The combination of stress, corrosion, and bacteria contribute to implant failure. The long term presence of corrosion reaction products and ongoing corrosion lead to fractures of the alloy-abutment interface, abutment, or implant body. They are used in dentistry in cast and wrought form. Titanium and its alloys are used in dentistry for implants because of its unique combination of chemical, physical, and biological properties. Professor, Division of Orthodontics and General Dentistry, Faculty of Dental Sciences, Institute of Medical Sciences, 4GF Jodhpur Colony, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, IndiaĬlick here for correspondence address and email Date of Submission ![]() An overview of the corrosion aspect of dental implants (titanium and its alloys)
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