Carbamide peroxide

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  • Causes And Disadvantages Of Tooth Discoloration

    1511 Words  | 7 Pages

    A recent survey has found that 80% of Americans aged eighteen to forty-nine want their teeth whiter (Lisa Vernon-Sparks 2010). According to the American Association of Orthodontists, they have found that 90% of their patients request tooth whitening (Mouth Healthy 2013). Many claim a brighter smile would help boost their self confidence and it is also a cost effective way to enhance teeth (Your Smile Becomes You). Teeth whitening has become an easy way to instantly improve appearance or first impression

  • Disadvantages Of Tooth Discoloration

    719 Words  | 3 Pages

    -The concentration of bleaching agents like hydrogen peroxide and carbamide peroxide is high in the solutions used in the chairside tooth whitening procedures. -The dentist uses tools like lasers, heat therapy or special lights to remove the deep and intrinsic discoloration as it helps the solution to oxidize the ingrained

  • Hydrogen Peroxide For Teeth Whitening

    1135 Words  | 5 Pages

    Title: Hydrogen Peroxide for Teeth Whitening, Hair and More Category: (SD) (Live) Tags: bleaching hair, lightening hair, whitening teeth, removing earwax, cleaning wounds Teaser: Use hydrogen peroxide to safely remove earwax. Article: When I was a teen, hydrogen peroxide was my go-to teeth-whitener, and something I would spray on my hair to get that “sun-kissed” look. Years later, you can still find a bottle in my medicine cabinet as an inexpensive way to whiten teeth, and disinfect cuts and scrapes

  • The Death Of A Kid

    1099 Words  | 5 Pages

    Imagine having the time of your life. The day going smoothly but then it just turns for the worst. Imagine having the biggest, worst, or horrifying cut or accident in your life as a kid, having the cut leave a scar and having to see it every time you move your arm or look at your arm. Imagine little tangles of pain when seeing it or just remembering the story or having your arm and body tremble in pain while writing this essay because of the sensation the cut give you when it happened. Reflecting

  • To investigate the effect of surface area on the rate of reaction using the enzyme Catalase, found in potato, and the substrate Hydrogen Peroxide.

    2680 Words  | 11 Pages

    enzyme is put in a pH that is very different from the optimum pH, it can cause the enzyme to denature. Most enzymes have an optimum pH of around 7, which is fairly neutral. To ensure the experiment is a fair test, I will use the same pH of hydrogen peroxide in every test. Inhibitors - As mentioned earlier, enzymes have an active site specific to the substrate molecules. However, it is possible for other molecules similar to enzyme's substrate to bind with the enzyme's active site and therefore, inhibit

  • Questions On Cold Storage

    2444 Words  | 10 Pages

    4. Discussion 4.1 Chilling injury index We previously reported that a 15-d period of cold storage at 5 °C was enough to develop CI symptoms in mature-green tomato fruit cv. Imperial (Vega-García et al., 2010). In agreement with those results, in the present study we observed CI symptoms after the fruit was stored 10 d at 5 °C, but they were more intense after 15 d of cold storage (Fig. 2). As expected, tomato fruit stored at 12 °C did not show CI symptoms (Malacrida et al., 2006; Bojórquez-Gálvez

  • An Investigation Of Enzyme Catalase Activity

    1614 Words  | 7 Pages

    Enzyme Catalase Activity Brontë Smith C13 06|05|2015     Abstract Five different temperatures of enzyme (spinach extract) (5°C, 20°C, 35°C, 45°C and 65°C) were added to individual measuring cylinders -each filled with 7ml of Hydrogen Peroxide (H202). The height of foam (oxygen + water) produced by the reaction was recorded for each temperature of the catalase after 30 seconds, to find at which degrees the enzyme activity had the fastest reaction rate. The data collected from this experiment

  • Enzyme Lab Essay example

    840 Words  | 4 Pages

    lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. Give your reasons and outline any assumptions that lead you to this hypothesis. I'm guessing that the liver will turn the peroxide into something else, or make it change. Experimental Design List the materials used in this lab, and the procedure you followed. Materials: Commercially available

  • Enzyme Catalase Experiment

    727 Words  | 3 Pages

    hydrogen peroxide on chicken liver which contains the enzyme catalase, in different temperature water and seeing how much water and oxygen it would produce. The amount of products (water and oxygen) produced in 10 minutes will be able to tell the reaction rates in each temperature. The data from the experiment showed a relationship between the temperature of its surroundings and the amount of bubbles and water produced. In the first test with chicken liver and hydrogen peroxide in 20℃ water

  • Lab Experiment On Catalase

    1913 Words  | 8 Pages

    Abstract Catalase is an enzyme needed to break down hazardous hydrogen peroxide into nonhazardous oxygen and water. This is needed for organisms as the reaction rate of the decomposition of hydrogen peroxide is too slow to protect cells against the oxidation of hydrogen peroxide. The purpose of this experiment is to test the concentration of hydrogen peroxide on catalase and variation in temperature of catalase to find the optimal values that will produce the highest rate of products. It was hypothesized