Januari 18, 2017
{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340{\fonttbl\f0\fswiss\fcharset0 helvetica;} {\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww10800\viewh8400\viewkind0 \pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural \f0\fs40 \cf0 [music]\\ toothpaste has three main ingredients:\b abrasives, fluoride, and surfactants \b0 \\ 50% of toothpaste is made of abrasives whichremove plaque and food particles. but that's nothing compared to crushed\b bones and shells \b0 that were used by the greeks. not everyonehad a toothbrush so toothpaste is usually
just rubbed with\b fingers, rags, or a branch \ \pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardeftab720\sl400\pardirnatural\cf0 \ as an aside, toothbrush does more work thanthe toothpaste. \b0 \\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural \cf0 \things did not get better in the \b 1800s\b0 . tooth paste was prepared with \b burnt bread, cinnamon, or burnt alum\b0 . tooth powder consisted of \b chalk, pulverized brick, or salt\b0 , which can sometimes to more harm than good.\\
\a lot of things happened between \b 1890s to 1900s\b0 : the \b collapsible tube\b0 was invented, so was \b premixed toothpaste\b0 , \b fluoride was used for the first time\b0 , and volleyball was born. it really was. in the 50s, striped toothpaste was invented,and the ada approved fluoride use. \ \ \b fluoride\b0 slows down and reverses enamel erosion but only when mixed with saliva.\b natural fluoride
\b0 can be found in water, plants, and animals.in the us, toothpaste can contain around \b 1000 parts per million\b0 and can be up to \b 1500 in the eu\b0 . fluoride is also sometimes mixed in water treatment plants of certain cities.\ \\ \b pets and astronauts\b0 have special toothpaste that can be swallowed. but, swallowing normal toothpaste could causenausea and diarrhea. no one wants \b space diarrhea\b0 . fluoride can also be toxic if swallowed in large amounts. there's also\b teeth whitening toothpaste
\b0 that uses hydrogen peroxide, but it'sthe abrasives that do the heavy lifting. results show up after brushing\b twice a day for three to four weeks \b0 . \\ (3rd)\b surfactants \b0 (detergent) like\b sodium lauryl sulfate \b0 , which can be found in shampoo, createsfoam which distributes paste more evenly. though i'd imagine that it was a great\b marketing \b0 opportunity to be the first foaming toothpaste.\\ \the three most popular flavour are
\b peppermint, spearmint, and wintergreen\b0 , but there are also exotic flavours like peanut butter, apricot, and whisky to namea few. \b stannous fluoride\b0 found in toothpaste could also alter taste. \b oranges\b0 are unpleasant while \b apples\b0 taste great. \ \in \b 2007\b0 , a toothpaste containing poisonous \b diethylene glycol\b0 was recalled world wide. as you know by now, we put a lot of\b synthesized chemical
\b0 in toothpaste, and that's why there's\b herbal and natural toothpaste \b0 which uses natural ingredients. \\ it still\b blows my mind \b0 that people used to make tooth paste outof \b pulverized bricks and charcoal and thenrub it in their teeth with a rag \b0 . come to think of it, there's probablya \b hipster\b0 out there trying that right now. \ }
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