Erythritol Air-flowing

Erythritol air-flowing is a dental air-polishing technique that uses a pressurized air-water spray carrying erythritol powder to clean tooth and oral surfaces. The stream mechanically disrupts and removes dental biofilm, stains, and deposits, while erythritol’s relatively low abrasiveness supports selective cleaning around gingival tissues, orthodontic appliances, and dental implants. In preventive and periodontal care, the method can improve plaque control and patient comfort during professional maintenance, making it useful for biofilm management and minimally invasive instrumentation. Its clinical value depends on appropriate powder delivery, surface selection, and integration with examination and individualized treatment planning.

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Education

JoVE Science Education - Engineering
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Pitot-static Tube: A Device to Measure Air Flow Speed

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2023

Source: David Guo, College of Engineering, Technology, and Aeronautics (CETA), Southern New Hampshire University (SNHU), Manchester, New Hampshire A Pitot-static tube is widely used for measuring unknown speeds in air flow, for example, it is used to measure airplane airspeed. By Bernoulli's principle, airspeed is directly related to variations in pressure. Therefore, the Pitot-static tube senses the stagnation pressure and static pressure. It is connected to a manometer or pressure transducer...

Education

JoVE Core - Civil Engineering

Air-entraining Agents

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2024

Air-entraining agents improve the durability and workability of concrete in climates with frequent freezing and thawing. These agents prevent cracks by introducing small air bubbles into the mix, creating spaces accommodating water expansion when temperatures drop. The air-entraining agents lower the surface tension of water, forming stable, small air bubbles. This method is more effective than having accidental large voids, as the intentional, smaller, and evenly distributed air voids improve...

Handling Air- and Water-Sensitive Chemicals Using a Schlenk Line

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2023

Robert M Rioux, Ajay Sathe, Zhifeng Chen, Pennsylvania State University, University Park, PA The use of reagents sensitive to oxidation or moisture necessitates the use of air-free techniques. A Schlenk line is a routinely used glass apparatus to perform air and moisture free manipulations in a chemical laboratory1. The Schlenk line is widely utilized by many chemists since it allows them conduct air or water sensitive reactions even without the expense and restriction of a glove box. The...

Effects of Air-entrainment in Concrete

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2024

Air entrainment in concrete significantly enhances the material's durability, especially in environments subjected to freeze-thaw cycles. Introducing small air bubbles into the concrete mix acts as internal voids that accommodate the expansion of water when it freezes, thereby alleviating internal stress and preventing structural cracks. This function is crucial in climates with significant freezing and thawing, as it protects the concrete from repeated stresses that could lead to premature...

Research

JoVE Journal - Biology

Flow Cytometry Purification of Mouse Meiotic Cells

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Cited by 57 •

2011

An efficient method to obtain highly purified viable meiotic fractions from mouse testis is described, which combines a refined cell dissociation protocol with fluorescent activated cell sorting (FACS). This method takes advantage of differences in the DNA content and nuclear density of discrete meiotic fractions.

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