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Showing 1 to 20 of 47 for “"demineralization"”.
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Treatment of Enamel Demineralization Following Orthodontic Therapy
The early-stage, carious, white-spot lesion is a common finding on teeth in patients who have received orthodontic treatment. Recently, a calciumphosphate (Ca-P) treatment was developed to enhance remineralization of white spot lesions. We hypothesized that a rinse containing the Ca-P would promote …
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Biologically Controlled Mineralization and Demineralization of Amorphous Silica
Living systems possess seemingly bottomless complexity. Attempts to parse the details of one cellular process from all other concurrent processes are challenging, if not daunting undertakings. The apparent depth of this problem, as it pertains to biomineralization, is related to the small number of …
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The influence of baseline hardness and chemical composition on enamel demineralization and subsequent remineralization
… nitrate (N) was found to be more resistant to demineralization. Additionally, the hardness of dental enamel was found to have a strong correlation with its chemical content. However, yet to be established is the relation between the physical and chemical structure of enamel and its response to …
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Effect of Highly Filled Light-Cured Resin Sealant on Bracket Shear Bond Strength in Demineralization Conditions
… solutions, either phosphate buffered saline or a demineralization solution (pH 4.1) for 96 hours. Brackets then underwent shear bond strength testing followed by ARI scoring. Enamel surfaces were visually examined for white spot lesion (WSL) severity using a WSL scoring index. HFLCS and exposure …
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Comparison of Two Orthodontic Sealants in Prevention of Enamel Demineralization : An In-Vitro and In-Vivo Study
Introduction: Enamel demineralization adjacent to orthodontic brackets is one of the risks associated with orthodontic treatment. Among the techniques utilized to prevent demineralization, application of orthodontic sealants is widely used to provide mechanical coating and fluoride release for the …
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Near-infrared imaging of artificial enamel caries lesions with a scanning fiber endoscope
… the NIR SFE was able to detect the presence of demineralization with high sensitivity (0.96) and specificity (0.85). This study demonstrates that the NIR SFE can be used to detect early demineralization from sound enamel. In addition, the NIR SFE can differentiate varying severity of …
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Effects of fluoride varnish application and phosphate buffered saline solution with or without demineralizing conditions prior to bracket bonding on subsequent enamel-bracket shear bond strength
… buffered saline (PBS) solution with or without demineralization (DM) prior to bracket bonding on subsequent enamel-bracket shear bond strength (SBS). Sixty maxillary third molars were used for the testing procedures after the roots were embedded in acrylic resin. Specimen were randomly assigned …
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ΜΕΤΑΒΟΛΙΣΜΟΣ ΤΟΥ ΑΣΒΕΣΤΙΟΥ ΚΑΙ ΟΣΤΕΟΠΑΘΕΙΑ ΣΕ ΧΡΟΝΙΟΥΣ ΑΛΚΟΟΛΙΚΟΥΣ
… A HIGH (66,6%) PREVALENCE OF OSTEOPENIA AND BONE DEMINERALIZATION, IN THE ABSENCE OF ALCOHOL-INDUCED HEPATITIS OR CIRRHOSIS. LOW DIETARY CALCIUM ANDHIGH URINARY CALCIUM EXCRETION, CORRELATED WITH OSTEOPENIA AND BONE DEMINERALIZATION, SUGGESTING BOTH FACTORS CONTRIBUTE TO THE BONE DISEASE OBSERVED …
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Primary Coronal Caries Prevention with Silver Diamine Fluoride – Investigations into Efficacy and Mode of Action
… and deionized water (DIW) in preventing enamel demineralization and enhancing remineralization using chemical, biofilm and pH-cycling models. In both chemical demineralization and pH-cycling models there were no statistically significant differences between SDF and SDF+KI in preventing coronal …
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Ability of Caries Detection Methods to Determine Caries Lesion Activity
… caries lesions form due to acid diffusion and demineralization of enamel subsurface with an intact surface layer (SL). Caries lesions progress when the outcome of demineralization and remineralization processes over time is net mineral loss. Lesions that continue to demineralize are called …
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The Physiological Aspects of the Piezoelectric Phenomenon and its Application in Biologic Bone
… current adversely effects bone growth.</p> <p>2. Demineralization occurs at the positive poles.</p> <p>3. Bony dissolution and necrosis ensues following demineralization.</p> <p>4. Trauma results in Osseous callus growth with increased mineralization of the area affected.</p>
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Determining the Difference Between Active and Inactive Caries White Spot Lesions Using Sodium Iodide
… White spot lesions are normally associated with demineralization that has happened (inactive) or is happening (active) to the tooth at a given time. In inactive white spot lesions, the demineralization is at rest and the infectious carious process is stopped. It is important to be able to …
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Kirjallisuuskatsaus liitukarieksesta kiinteän oikomishoidon aikana
… fixed appliances, orthodontics, fluoride, demineralization. Liitukaries on vaalea kiillemuutos, joka voi esiintyä millä tahansa hampaan pinnalla ja se voi kehittyä normaalia kariesleesiota nopeammin. Kiinteän oikomishoidon potilailla ilmenee usein liitukariesta, sillä hampaita on vaikeampi …
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Chemical and Electrochemical Coal Cleaning in acidic medium application and analysis of the process
… that different mechanisms were achieving demineralization by the CECC. Between 50% and 95% of the feed mineral matter was removed by dissolution, whereas the balance could be ascribed to liberation. The CECC process is suitable for cleaning middlings, as well as for further extracting …
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EXPLORATION OF ECONOMIC AND ENVIRONMENTALLY BENEFICIAL APPROACH FOR WASTE SHELL FRACTIONATION
… for deproteinization and high pressure CO2 for demineralization. The chitin product after the process has a high purity which was systematically characterized by various techniques. Life cycle analysis has been conducted to examine the economic and environmental impacts of the developed method …
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Post sheer stress flow of flowable composites containing microcapsules
… incorporate ion releasing microcapsules to fight demineralization and the failure of composites due to secondary caries; and produce a formulation with no trace of BPA in it to improve current flowable composites. The specific goal of this study is to determine how the novel low stress, BPA free …
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Nanomechanics and ultrastructural studies of cortical bone : fundamental insights regarding structure-function, mineral-organic force mechanics interactions, and heterogeneity
… mechanisms of bone, partial and complete demineralization was carried out to produce samples ranging from -0-58 wt.% mineral content. Nanoindentation experiments perpendicular to the osteonal axis found a 4-6x increase in stiffness for the -58 wt.% sample compared to the completely …
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Novel Separation Methods using Electrodialysis/Electrodeionization for Product Recovery and Power Generation
… in the chemical industry. Originally used for demineralization and desalination, electrodialysis and its counterparts have expanded to assist in product purification, waste and hazard removal, and power generation. This research focused on the development of high purity organic acids …
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