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Old 12-06-2011, 09:58 AM
 
Location: Hermoso y tranquilo Panamá
11,874 posts, read 9,274,375 times
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Good morning
. . . . . . . Didja Know?
Before the invention of nylon bristles in the late 1930’s, tooth brushes actually CAUSED decay and disease.

That is because the hollow shafts of the hogs hair bristles in use up until then tended to retain bacteria.
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Old 12-06-2011, 10:03 AM
 
Location: grooving in the city
7,371 posts, read 5,639,802 times
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Ewww..I didn't not know that. Hog bristles... Thank you, Joy. Most informative DYK!!
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Old 12-06-2011, 10:17 AM
 
Location: Virginia
18,717 posts, read 25,890,711 times
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Yet another reason I'm glad I live in this century.
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Old 12-06-2011, 11:57 AM
 
Location: Abilene, Texas
8,746 posts, read 7,457,274 times
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That's interesting, I didn't know it.
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Old 12-06-2011, 11:59 AM
 
6,441 posts, read 4,244,557 times
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Ohmigawd! Ack! Phooey!
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Old 12-06-2011, 01:20 PM
 
Location: NW Indiana
39,223 posts, read 14,284,670 times
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Quote:
Originally Posted by JustJoy View Post
<B>Good morning
. . . . . . . Didja Know?
Before the invention of nylon bristles in the late 1930’s, tooth brushes actually CAUSED decay and disease.
</B>

That is because the hollow shafts of the hogs hair bristles in use up until then tended to retain bacteria.
Yikes! Gross! It makes sense, though, when you think about it.

Interesting factoid, Joy!
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Old 12-06-2011, 02:08 PM
 
Location: Hermoso y tranquilo Panamá
11,874 posts, read 9,274,375 times
Reputation: 47166
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Old 12-06-2011, 03:18 PM
 
Location: Looking over your shoulder
29,653 posts, read 26,557,737 times
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Quote:
Originally Posted by JustJoy View Post
Good morning
. . . . . . . Didja Know?
Before the invention of nylon bristles in the late 1930’s, tooth brushes actually CAUSED decay and disease.

That is because the hollow shafts of the hogs hair bristles in use up until then tended to retain bacteria.
That’s the reason for why kids always squealed (like a pig) when they went to the dentist.
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Old 12-06-2011, 04:56 PM
 
5,500 posts, read 4,383,583 times
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Good one JustJoy!

Didja know?

That your kitchen harbors more bacteria than your bathroom...unless you're a pig.
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Old 12-06-2011, 05:31 PM
 
25,084 posts, read 13,826,554 times
Reputation: 41737
Quote:
Originally Posted by JustJoy View Post
Good morning
. . . . . . . Didja Know?
Before the invention of nylon bristles in the late 1930’s, tooth brushes actually CAUSED decay and disease.

That is because the hollow shafts of the hogs hair bristles in use up until then tended to retain bacteria.
ewwwww Thank God for nylon
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