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2. Diatomaceous earth filtration - Wikipedia

   en.wikipedia.org/wiki/Diatomaceous_earth_filtration

   Diatomaceous earth filtration is a special filtration process that removes particles from liquids as it passes through a layer of fossilized remains of microscopic water organism called diatoms. These diatoms are mined from diatomite deposits which are located along the Earth's surface as they have accumulated in sediment of open and moving ...

3. Teeth whitening: What is it, how to do it safely and how to ...

   www.aol.com/lifestyle/teeth-whitening-100042380.html

   Teeth whitening strips are easy-to-use, peel-and-stick strips that you wear on your teeth for 15 to 30 minutes each day. "Most kits come with a 30-day supply and are relatively easy to use," says ...

4. Dentifrice - Wikipedia

   en.wikipedia.org/wiki/Dentifrice

   By 1924, diatomaceous earth was mined for tooth powder. [8] In modern times, baking soda has been the most commonly used tooth powder. The use of powdered substances such as charcoal, brick, and salt for cleaning teeth has been historically widespread in India, particularly in rural areas. [9]

5. Dentist-Approved At-Home Teeth Whiteners - AOL

   www.aol.com/dentist-approved-home-teeth...

   Before you start shopping for over-the-counter teeth whitening products, American Dental Association (ADA) spokesperson Matt Messina, DDS, recommends scheduling an appointment with your dentist ...

6. Tooth whitening - Wikipedia

   en.wikipedia.org/wiki/Tooth_whitening

   Tooth whitening or tooth bleaching is the process of lightening the colour of human teeth. [1] Whitening is often desirable when teeth become yellowed over time for a number of reasons, and can be achieved by changing the intrinsic or extrinsic colour of the tooth enamel . [ 2 ]

7. Diatomaceous earth - Wikipedia

   en.wikipedia.org/wiki/Diatomaceous_earth

   Diatomite rock sample from Sisquoc Formation Scanning electron micrograph of diatomaceous earth. Diatomaceous earth (/ ˌ d aɪ. ə t ə ˈ m eɪ ʃ ə s / DY-ə-tə-MAY-shəs), also known as diatomite (/ d aɪ ˈ æ t ə m aɪ t / dy-AT-ə-myte), celite, or kieselguhr, is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder.