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  • No one likes going to the dentist, but you should all go every year. Because really,

  • do you want to risk an infection in the biggest hole in your head?!

  • Hey guys, Amy talking the joys of oral hygiene with you on DNews today!

  • As many as 700 types of bacteria can live in our mouths, though most people only host

  • between 34 and 72 varieties. Some of these bacteria are innocuous, others known as probiotics

  • actually help us digest food. There are even bacterial strains that protect our teeth and

  • gums. But there are some bad bacteria living in your mouth as well.

  • One is called streptococcus mutans. This bacteria feeds on the sugars and starches you eat,

  • producing enamel-eroding acids as a by-product, which can lead to tooth decay. Another bad

  • bacteria is porphyromonas gingivalis, which is linked to periodontitis, a serious and

  • progressive disease that affects the soft tissue and the alveolar bone that support

  • the teeth causing tooth pain and in some cases tooth loss.

  • For most of us, our main dental issue will be plaque, the film that builds up on your

  • teeth and contains the bacteria that produces enamel-destroying acids. Regular cleanings

  • get rid of plaque, but if you don’t clean the plaque from your teeth it hardens into

  • tartar, which can get below your gums, causing inflammation and infection. That can open

  • a pathway into your bloodstream. Once that bacteria is in your blood, it can get anywhere.

  • The first place that bacteria-filled blood could go is your heart where there is some

  • evidence that it can lead to atherosclerosis, or a hardening of the arteries caused by plaque,

  • though this is a different kind of plaque than you'd find on your teeth. The plaque

  • in your arteries is made of cholesterol, fatty substances, cellular waste products, calcium

  • and a clotting agent called fibrin. It builds up and thickens the walls of the arteries,

  • constricting blood flow and increasing risk of a heart attack. Clogged or blocked arteries

  • can also restrict blood flow to the brain, increasing risk of stroke.

  • A recent single hospital study in Osaka, Japan, found that a quarter of stroke victims had

  • a bacteria called cnm-positive S. mutans in their saliva. The researchers acknowledged

  • that it’s a rare bacteria only 10 percent of people have, but it’s still enough to

  • reinforce the link between the oral bacterium and stroke.

  • And mouth bacteria can even follow a path to your brain, increasing risk of dementia.

  • A 2013 study from the University of Central Lancashire found a correlation between the

  • bacteria commonly associated with gingivitis and an immune response that may kill neurons.

  • This could ultimately change the brain in a way consistent with Alzheimer’s disease.

  • And, if that weren't bad enough, letting bacteria form colonies in your mouth can also lead

  • to lung infections, but not through the bloodstreamInstead you literally breathe oral microbes

  • into your lungs, where it can infect and spread.

  • And your oral health doesn’t just impact your body health, it can be a good indicator

  • of your overall health. For example: gum disease can be a sign of diabetes, painful mucosal

  • lesions are more common in people who are HIV positive, and tooth weakness or loss can

  • be a sign of osteoporosis.

  • So it should be said that this is a hugemore research is neededtopic since most studies

  • have small sample sizes and need follow-up work. And experts somewhat begrudgingly admit

  • that we just don’t know yet whether treating gum disease can reduce the risk of heart attack,

  • stroke, or dementia. But, really, do you need more motivation for keeping up with dental

  • visits than maintaining good teeth for chewing? Floss! Brush! And above all: go to the dentist!

  • And speaking of painful things in your mouth, confused about the difference between canker

  • sores and cold sores? We were, too, so Trace explains it in this video right here.

  • So how many of you always go in your yearly dental cleaning? I do! Let us know in the

  • comments below and don’t forget to subscribe for DNews every day of the week.

No one likes going to the dentist, but you should all go every year. Because really,


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B2 中高級 美國腔

不刷牙會有什麼後果? (What Happens When You Don’t Brush Your Teeth?)

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    Ethan 發佈於 2021 年 01 月 14 日