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Researchers at the University of Sao Paulo have conducted a study on the wear performance of 316L stainless steel with niobium oxide coatings in different environmental conditions, including artificial saliva. The results showed a decrease in friction coefficient, wear area, and wear rate when the coatings were applied. The study highlights the potential of these coatings for applications in the biomedical sector. For more information, readers can refer to the article "Enhancing the Wear Performance of 316L Stainless Steel with Nb [ [2] ] O [ [5] ] Coatings Deposited via DC Sputtering at Room Temperature under Varied Environmental Conditions" published in Lubricants. [Extracted from the article]

A study conducted at Wenzhou University in China focused on the microstructure and corrosion behavior of a Ti-Mo-Zr alloy fabricated using selective laser melting in a simulated oral environment. The research found that heat treatment significantly affected the orientation of alpha grains in the alloy, with differences in corrosion resistance attributed to grain size, orientation, and phase distribution. Financial support for the study came from the Major Science and Technology Innovation Project of Wenzhou, China. The research was peer-reviewed and published in the International Journal of Electrochemical Science. [Extracted from the article]

Researchers from Osaka University in Japan conducted a study on the infection-prevention performance of local exhaust ventilation systems under three different underfloor air distribution systems during face-to-face conversations. The study compared the effectiveness of hoods in floor-supply displacement ventilation, horizontal flow-type floor diffuser, and swirling flow-type floor diffuser systems. Results showed that the risk of airborne infection for doctors decreased in the order of FSDV < HFD < SFD, with the FSDV system being more effective in reducing airborne infection risks. The research suggests that these findings can be applied to smaller spaces like examination rooms and meeting rooms. [Extracted from the article]

A recent study conducted by a researcher from King Saud University in Riyadh, Saudi Arabia, focused on evaluating the shear bond strength of metal brackets bonded to two types of CAD/CAM composite restorations: milled and 3D-printed. The study found that milled materials exhibited higher bond strength compared to 3D-printed materials, with surface treatments like sandblasting and hydrofluoric acid significantly improving bond strength. The research concluded that both milled and 3D-printed materials showed adequate bond strength for clinical use, with milled materials showing superior results. [Extracted from the article]

A study conducted at the University of Malaya investigated the effect of different surface treatments on the shear bond strength of glass ionomer cements to silver diamine fluoride-treated simulated carious dentin. The research found that the preferred method for preparing carious dentin before restoration application is polyacrylic acid for self-cured high-viscosity glass ionomer cements and phosphoric acid plus resin-modified GIC adhesive for light-cured high-viscosity glass ionomer cements. This study provides valuable insights for dental materials and dentistry practices. [Extracted from the article]

Researchers at the University of Munster conducted a study to investigate the retention force of two stud attachment systems, Locator legacy, and Novaloc, under cyclic load. The study found that Novaloc attachments showed less wear and a slower decrease in retention force compared to Locator attachments. The research suggests that regular checks and possible replacement of inserts are necessary for both systems in clinical use. The findings have been published in the Journal of Prosthodontics and have been peer-reviewed. [Extracted from the article]

A study conducted by the Department of Conservative Dentistry and Endodontics evaluated the impact of tooth brushing and mouth rinsing after bleaching with 16% carbamide peroxide on the surface roughness and solubility of newer self-blending resin composite. The research involved 70 specimens treated with different methods and concluded that Listerine mouth rinse, in combination with brushing, had a significant effect on the surface roughness and solubility of the composite resin. This study provides valuable insights into the effects of oral hygiene practices on dental materials and could inform future dental care practices. [Extracted from the article]

A recent study conducted by the Faculty of Dental Medicine examined the interaction between titanium-based dental alloys and artificial saliva. The researchers found that titanium demonstrated the lowest corrosion rate and exhibited increased stability in the oral environment. Nitinol, on the other hand, showed typical pitting corrosion. Both materials showed reduced cytotoxic potential and increased percentages of live cells. This research provides valuable insights into oral rehabilitation and the effects of dental alloys on oral health. For more information, the full article can be accessed through the Romanian Journal of Oral Rehabilitation. [Extracted from the article]

A study conducted by researchers at the University of Baghdad investigated the frictional resistance of two types of esthetic self-ligating brackets used in orthodontics. The study compared the static frictional force of 180 ceramic self-ligating brackets, specifically 90 passive brackets (Damon Clear) and 90 active brackets (Empower Clear), with three different types of archwires. The results showed that Damon Clear brackets produced lower frictional forces compared to Empower Clear brackets, and epoxy-coated NiTi archwires produced lower static frictional force compared to rhodium-coated NiTi and CuNiTi archwires. This research provides new insights into the effectiveness of different bracket and archwire combinations in orthodontic treatment. [Extracted from the article]

A research study conducted at the University of Zagreb in Croatia has explored the use of electrospun composite fibers to improve the osteoinductivity of titanium-based dental implants. The study aimed to address the issue of titanium implants not being able to induce the formation of new bone around the implant, which is crucial for their long-term stability. The researchers successfully formed a porous network of composite fibers on the titanium surface, which gradually released calcium ions into the environment of the implant when immersed in artificial saliva. The study concluded that these composite fibers have the potential to develop more biocompatible dental implants that promote bone formation. [Extracted from the article]

A research report from the University of Baghdad discusses the use of nanohydroxyapatite (n-HAP) serum to enhance the microhardness of enamel surfaces before and after bleaching. The study found that applying n-HAP serum for 2-3 minutes daily for 10 days before bleaching resulted in a significant increase in microhardness. This increase was maintained even after storage for 14 days in artificial saliva. The research suggests that n-HAP can be an effective preventive and treatment measure for maintaining enamel microhardness. [Extracted from the article]

A study conducted in Almada, Portugal, examined the effects of toothpaste with activated carbon on orthodontic elastomeric chains (ECs). The study found that toothpaste with activated carbon significantly reduced the tensile strength and resistance to rupture of the ECs, as well as altered their color. The effects varied depending on the brand of EC and the percentage of activated carbon in the toothpaste. The researchers suggest that patients wearing ECs should avoid using toothpaste with activated carbon until further evidence is available. [Extracted from the article]

A recent study conducted in Ahvaz, Iran, investigated the effects of different compounds on remineralizing enamel lesions caused by primary caries in primary teeth. The compounds tested were bioglass, chitosan, chitosan-bioglass, and silver diamine fluoride (SDF). The study found that all the compounds demonstrated a significant remineralizing effect on the enamel lesions. However, the comparison between the groups yielded insignificant results due to the dispersion of the samples, suggesting that further studies with larger sample sizes are recommended. This research provides valuable insights into potential treatments for dental caries. [Extracted from the article]

A researcher from Tanta University in Egypt has published new data on nanohybrids, specifically focusing on the shear bond strength of thermoviscous bulk-fill composite to sound dentin. The study used thirty freshly extracted sound human molars and divided them into three groups based on the type of composite used. The results showed that the shear bond strength of the nanohybrid composite was better than the thermoviscous bulk-fill composite when using a self-etch adhesive on the sound dentin surface. The study suggests that nanohybrid composites may be preferable to bulk fill composites, especially in stress-bearing areas. [Extracted from the article]

A new study conducted by researchers at the University of Modena and Reggio Emilia in Italy examines the color stability of composite resins used in dental restorations. The study compares the pigmentation and color stability of single-shade and multi-shade composites after immersion in staining substances. The results show that single-shade composites are more prone to discoloration than multi-shade composites, regardless of the polymerization time. This research provides valuable insights for dentists and patients in choosing the most suitable composite material for dental restorations. [Extracted from the article]

Researchers from the University of Baghdad conducted a study on the efficacy of different remineralization agents on enamel white spot lesions (WSLs). The study compared the effects of bioactive glass (BAG), casein phospho-peptide-amorphous calcium phosphate with fluoride (CPP-ACPF), and artificial saliva on the microhardness and mineral content of enamel samples. The results showed that the BAG+CPP-ACPF group had the most favorable recovery in terms of surface microhardness and mineral content. The study concluded that BAG+CPP-ACPF was the most effective treatment for enhancing both surface microhardness and mineral content. [Extracted from the article]

Researchers from the University of Belgrade conducted a study to analyze and compare the effects of acidic media on the surface characteristics of highly filled flowable resin-based composites. The study involved 256 specimens divided into four groups. The researchers measured surface roughness, analyzed surface morphology using scanning electron microscopy, and evaluated surface hardness. The results showed that exposure to acidic media, particularly gastric juice, increased surface roughness and decreased surface hardness of the tested materials. This information is important for the longevity of restorations made from these materials, such as composite veneers. The research was supported by the Republic of Serbia's Ministry of Science, Technological Development, and Innovation. [Extracted from the article]

Researchers from the University of Sao Paulo conducted a study to evaluate the influence of radiation and different formulations of artificial saliva on the development of root dentin lesions. The study found that the type of biofilm did not have an impact on colony-forming units (CFU) or demineralization. Sound dentin under control biofilm had the lowest CFU and mean mineral loss compared to irradiated dentin. The only artificial saliva that reduced mineral loss and lesion depth was Bioextra. The study concluded that irradiation has an impact on caries development and the experimental saliva formulations were unable to reduce its occurrence. [Extracted from the article]

A recent study conducted at the University of Baghdad examined the efficacy of different remineralization agents on the microhardness and chemical composition of enamel white spot lesions (WSLs). The study used bioactive glass (BAG) and casein phospho-peptide-amorphous calcium phosphate with fluoride (CPP-ACPF) as remineralizing agents. The results showed that the BAG+CPP-ACPF group had the most favorable recovery in terms of surface microhardness and mineral content. The study concluded that BAG+CPP-ACPF was the most effective treatment for enhancing both surface microhardness and mineral content. [Extracted from the article]

A recent study conducted by researchers at Sao Paulo State University (UNESP) in Brazil examined the effects of fluoridated varnishes containing micrometric or nanosized sodium trimetaphosphate (TMP) on enamel softening in an early erosive model in vitro. Bovine enamel blocks were treated with different varnishes and subjected to erosive challenges. The results showed that the varnishes containing TMP enhanced the effects of a 5% NaF varnish against enamel softening, with nanoparticles providing an additional benefit over microparticles. This research provides valuable insights into the potential use of biotechnology in dental care. [Extracted from the article]

A recent study conducted in Maharashtra, India, compared the solubility of a single shade resin composite with a conventional resin composite in artificial saliva. The study found that the single shade composite had better performance in terms of solubility compared to the conventional composite. The research suggests that the solubility of resin composites can have an impact on the longevity of restorations in dentistry. This information may be useful for individuals in the field of biomedical engineering and dentistry. [Extracted from the article]

A recent study published by the Ministry of Education discusses the development of a colorimetric sensor array for the identification of cariogenic bacteria in saliva samples. The researchers used single-atom nanozymes (SANs) assisted by machine learning to create a fingerprint-like response for different types of cariogenic bacteria. The sensor array demonstrated excellent performance in identifying mixed cariogenic bacteria in artificial saliva samples. This research has the potential to contribute to the prevention and treatment of oral diseases. [Extracted from the article]

Researchers at King Saud University in Riyadh, Saudi Arabia conducted a pilot study to evaluate the immediate effect of different herbal solutions on the tensile strength of sutures used in oral surgical procedures. The study found that home-prepared herbal solutions can affect the tensile strength and maximum load of suture materials. The researchers recommend careful and controlled use of herbal solutions after dental surgical procedures. The study provides valuable information for dental professionals and patients regarding the use of herbal solutions in oral surgery. [Extracted from the article]

A new report from Zhejiang Gongshang University in Hangzhou, China, explores the use of artificial saliva for relieving xerostomia, or dry mouth. The study focuses on the thickening, lubricating, and wetting capabilities of sodium hyaluronate (SH) compared to other commonly used thickening agents. The research found that SH demonstrated efficient moistening and lubrication properties, making it a potential component for high-performance artificial saliva. This study provides valuable insights into the development of improved treatments for xerostomia, which is a growing concern, particularly among elderly populations. [Extracted from the article]

A recent study conducted by researchers at the University of Campania Luigi Vanvitelli in Italy has developed a biosensor for detecting cortisol levels in saliva. Cortisol is a stress biomarker that plays a role in physiological and psychological responses to stress. The biosensor, which utilizes a glucocorticoid receptor as a bioreceptor, demonstrated good selectivity and a low detection limit in both buffer and artificial saliva. This research could potentially lead to the development of a point-of-care test for measuring cortisol concentration in saliva samples without the need for extraction or pretreatment. [Extracted from the article]

A recent study conducted in Wuxi, People's Republic of China, examined the effect of fluoride ions on the corrosion resistance of CoCrMo dental prostheses. The researchers found that an increase in fluoride concentration weakened the corrosion resistance of the alloy. They also observed that the addition of fluoride decreased the peaks of certain elements in the alloy and promoted the dissolution of the passive film. The findings of this study could help regulate and guide the use of oral fluorine-containing products. [Extracted from the article]

A recent report from Iowa State University discusses the findings of a study on the effect of certain alloying elements in additively manufactured Co-Cr alloy for dental prosthetics. The study focused on the roles of tungsten (W) and molybdenum (Mo) in enhancing the tribological and corrosion properties of the alloy. The researchers found that the inclusion of Mo led to finer grain sizes, increased hardness, and improved wear resistance, while W bolstered corrosion resistance. This comprehensive study provides valuable insights into the development of novel alloys for dental applications. [Extracted from the article]

Researchers from the University of Ferrara in Italy conducted a study to evaluate the color stability of in-house 3D-printed resin brackets (IH3DBs) compared to commercially available brackets when exposed to artificial saliva and mechanical brushing. The study found that IH3DBs showed statistically significant differences in color changes compared to the other brackets, possibly due to surface roughness from the printing process. However, IH3DBs, along with Damon Clear brackets, improved brightness due to the mechanical action of brushing. The findings suggest that the printing process may affect the color stability of 3D-printed brackets. [Extracted from the article]

A recent study conducted at Sree Sai Dental College and Research Institute in Andhra Pradesh, India, examined the effects of blood and artificial saliva contamination on different root-end filling materials. The study used noncarious single-rooted teeth and evaluated microleakage and marginal adaptation using confocal laser scanning microscopy and scanning electron microscopy, respectively. The results showed that all tested materials exhibited marginal gaps and dye leakage, with Bio-C Repair demonstrating the best marginal adaptation and sealing ability. The study suggests that Bio-C Repair may be superior in terms of these factors under the test conditions. [Extracted from the article]

A recent study conducted at Kielce University of Technology in Poland aimed to characterize TiCN coatings for biomedical applications. The researchers found that the deposition of a TiCN coating on Ti6Al4V alloy increased its hardness by 75% and reduced friction and wear. Microscopic observations revealed that wear mechanisms were less pronounced with the TiCN coating compared to the alloy alone. The study concluded that TiCN coatings impart low-friction and anti-wear properties to titanium alloy surfaces. For more information, readers can refer to the journal article "Characterisation of Ticn Coatings for Biomedical Applications" published in Coatings. [Extracted from the article]

This article discusses the findings of a study on artificial saliva conducted by researchers from the Faculty of Dental Medicine. The study focused on the topographical characteristics of four thermoplastic dental appliance materials in relation to water sorption in simulated oral environments. The researchers found that the sorption rates were higher for basic pH levels and that there were significant differences in the behaviors of the materials. The surfaces of the materials tended to be smoother on a microscale after saliva immersion and more irregular on a nanoscale. The study provides valuable insights into the properties of thermoplastic biomaterials used in dentistry and other medical applications. [Extracted from the article]

A recent report discusses the impact of artificial aging on the physical and mechanical characteristics of denture base materials fabricated via 3D printing. The study found that 3D printing in the dental sector has the potential to save time, enhance precision, and offer cost-effective solutions. However, the effect of aging in artificial saliva on these materials has not been explored. The research evaluated the properties of different 3D-printed materials before and after being subjected to artificial saliva, and found that while the 3D-printed materials had greater sorption, they exhibited comparable or superior mechanical properties compared to conventional heat-cured materials. The study concludes that 3D-printed denture base materials can be used alongside conventional materials. [Extracted from the article]

A study conducted by researchers at Universitas Prof. Dr. Moestopo in Jakarta, Indonesia, has found that oolong tea leaf extract can effectively inhibit the corrosion of stainless steel orthodontic wires. Stainless steel wires used in orthodontics can generate corrosion, leading to hypersensitivity reactions in the oral environment. The study used a laboratory experimental design with 24 samples divided into four groups, with one group treated with artificial saliva and the other three groups treated with different concentrations of oolong tea leaf extract. The results showed that the group treated with a 25% concentration of oolong tea leaf extract had the best results in inhibiting the corrosion rate. This research provides valuable insights into the use of organic inhibitors to reduce corrosion in orthodontic materials. [Extracted from the article]

A recent study conducted by researchers at Manipal College of Dental Sciences in Karnataka, India, examined the effects of water sorption and solubility on the degradation of silorane and methacrylate-based dental composites. The study found that both materials experienced considerable sorption and solubility over time when immersed in water or artificial saliva. However, silorane composites displayed enhanced hydrolytic stability compared to methacrylate-based composites, making them a potentially better alternative for clinical use. The study's findings suggest that the wet oral environment can have detrimental effects on composite performance, highlighting the importance of understanding the degradation of dental materials. [Extracted from the article]

Researchers at Imam Abdulrahman Bin Faisal University in Dammam, Saudi Arabia have developed bioactive glass-based resin infiltrants to assess their properties. Three experimental resin infiltrants were synthesized using different types of glass, and their conversion, wettability, bioactivity, and optical properties were evaluated. The results showed that the experimental infiltrants had comparable properties to the control infiltrant, with the boron-bioactive glass group showing the most resistance to chemical aging. The researchers concluded that the ion-doped bioactive glasses have potential for treating white spot lesions. [Extracted from the article]

A study conducted at Yunnan University in Kunming, China, examined the corrosion effects of Streptococcus mutans (S. mutans), Candida albicans (C. albicans), and their mixture on implant materials Ti and Ti-Zr in artificial saliva. The researchers found that there were differences in biofilm structure, corrosion behavior, and mechanisms between single and mixed bacteria. The cross-kingdom interaction between S. mutans and C. albicans enhanced biofilm maturity and acidity, leading to pitting corrosion. Additionally, Ti-Zr exhibited higher corrosion resistance compared to Ti. This research provides insights into the influence of Candida albicans and Streptococcus mutans interactions on the corrosion behavior of implant materials in artificial saliva. [Extracted from the article]

Researchers at the Chinese Academy of Sciences have developed a new coating for invisible aligners used in orthodontic treatment. The hydrophilic poly(sulfobetaine methacrylate) (polySBMA) coatings have lubricating, antifouling, and antiadhesive properties, addressing issues with plaque formation and oral mucosa abrasion. The coatings significantly reduce friction, inhibit protein adsorption and bacterial adhesion, and demonstrate good biocompatibility. The coatings do not affect the transparency, mechanical properties, or biocompatibility of the aligner material, making them a promising strategy for improving the performance of invisible aligners and benefiting oral health treatment. [Extracted from the article]

Researchers from the University of Novi Sad in Serbia have conducted a study on the electrochemical behavior of an Au-Ge alloy in artificial saliva and sweat solutions. The purpose of the research was to understand the corrosion resistance of the alloy when in contact with human electrolytes. The study found that immersion time and pH value had a greater influence on corrosion resistance than the composition of the electrolyte solution. The results suggest that the Au-Ge alloy could be a potential material for use in dentistry or jewelry. [Extracted from the article]

Researchers at the University of Jinan in Guangzhou, China have developed a method for early detection of HIV infection using an optical microfiber nucleic acid sensor. The sensor, enhanced by a bimetallic interface, can detect HIV-related DNA in body fluids such as whole serum and artificial saliva. The sensor has a high sensitivity and selectivity, with a limit of detection of 0.3 aM for HIV-related DNA. This research provides a powerful tool for diagnosing HIV in the early stages and offers the possibility of noninvasive detection using artificial saliva. [Extracted from the article]

A study conducted at Cairo University in Egypt examined the electrochemical behavior of a Co-Cr-Mo-W alloy in artificial saliva. The study investigated the effects of fluoride ion concentration, pH level, and immersion time on the alloy's corrosion resistance using various techniques. The results showed that the growth rate of the air-formed film on the alloy surface decreased with an increase in fluoride ion concentration. Additionally, the corrosion resistance of the oxide layer on the alloy decreased with an increase in fluoride ions but increased with an increase in saliva pH value. The study also found that the thickness of the anodic oxide film increased with rising pH levels in the saliva. Overall, the research provides insights into the corrosion behavior of the alloy in artificial saliva. [Extracted from the article]

A study conducted at Indiana University examined the color stability of different restorative materials after immersion in artificial saliva and wine for varying periods of time. The study found that wine caused significant color changes in all tested materials, except for milled definitive crowns made of hybrid nano-ceramic material, which showed the greatest color stability. The research concluded that patients who consume a lot of wine may experience discoloration in 3D-printed definitive crowns made of hybrid ceramic-filled material. This research has been peer-reviewed and provides valuable information for individuals in the field of prosthodontics. [Extracted from the article]

A recent study conducted at a British university examined the effect of acidic beverages on the surface topography and color stability of two commonly used computer-aided design/computer-aided manufacturing (CAD/CAM) ceramic materials. The study found that immersion in acidic media, such as orange juice and a fizzy drink containing H3PO4, resulted in an increase in surface roughness and a decrease in color stability compared to immersion in artificial saliva. Scanning electron microscope (SEM) images and energy-dispersive X-ray results showed the dissolution of the glassy matrix and exposure of silicate crystals. The study concluded that the pH of different acidic media can affect the surface topography and color stability of glass ceramics. [Extracted from the article]

A report from the University of Jinan in Guangzhou, China discusses the use of strontium-zinc-based phosphate coatings on magnesium alloys for degradation control and cytocompatibility enhancement in medical applications. The rapid degradation of magnesium alloys under physiological conditions has limited their use in clinical applications, but the SZP coatings provide corrosion protection and mitigate degradation. The coatings also show compatibility with cells and have potential for use in biodegradable magnesium-based guided bone regeneration membranes. The research has been peer-reviewed and published in Colloids and Surfaces A Physicochemical and Engineering Aspects. [Extracted from the article]

A recent study conducted by researchers at Alexandria University in Egypt examined the effects of repolishing on the color stability, translucency, and surface roughness of aged monochromatic dental composites in various substances, including artificial saliva, tea, mouthwash, and coffee. The study used two types of dental composites and found that repolishing did not improve the color or surface roughness of the aged composites. However, there were differences in color stability and translucency between the two types of composites. The findings suggest that repolishing may not be effective in enhancing the appearance of aged dental composites. [Extracted from the article]

Researchers from Hubei University of Technology in Wuhan, China have conducted a study on the rheological properties of model boli, which are small masses of food that are formed during oral processing. The researchers prepared model boli using polysaccharide microgels mixed with artificial saliva. They found that the storage modulus of the gel beads increased and then decreased with increasing content of artificial saliva, similar to the behavior of wet granular materials. Although this study focused on a specific stage of oral processing, it provides insights into the rheology of boli and the concept of wet granular matter. The research has been peer-reviewed and published in the journal Food Hydrocolloids. [Extracted from the article]