你是不是也有過(guò)這樣的經(jīng)歷?累了一天之后,只想倒頭就睡,完全想不起來(lái)刷牙;早上被鬧鐘吵醒,手忙腳亂地抓起面包就往門(mén)外沖,刷牙這件事早就拋到了腦后。
那么問(wèn)題來(lái)了:不刷牙就睡覺(jué),和不刷牙就吃早餐,到底哪個(gè)對(duì)牙齒的傷害更大?先說(shuō)結(jié)論:不刷牙睡覺(jué)的危害,遠(yuǎn)遠(yuǎn)大于不刷牙吃早餐。睡前刷牙,其實(shí)是保護(hù)我們牙齒最重要的一道防線。
After a long day, skipping brushing your teeth before bed can feel tempting. Mornings can be just as rushed, with little time to clean your teeth. But if one habit is worse than the other, the answer is clear: missing your nighttime brushing does far more harm.
Brushing before bed can be seen as the most important line of defense for oral health.
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睡前不刷牙,相當(dāng)于給細(xì)菌“開(kāi)派對(duì)”
我們的口腔里,本來(lái)就住著成千上萬(wàn)的細(xì)菌。它們最?lèi)?ài)吃的,就是我們牙齒上殘留的食物碎屑。吃完之后,細(xì)菌會(huì)排出酸性物質(zhì),慢慢腐蝕牙齒最外層的“盔甲”,即牙釉質(zhì)。時(shí)間久了,蛀牙就找上門(mén)了。
The mouth naturally contains hundreds of thousands of bacteria. These microbes feed on food debris left on teeth, breaking it down into acids that gradually erode the enamel, our teeth's protective outer layer. Over time, this process leads to demineralization and increases the risk of cavities.
debris /d??bri?/ 碎片,殘片
enamel /??n?m.?l/ 牙釉質(zhì)
不過(guò)在平時(shí),這些細(xì)菌和我們基本能和平共處。我們吃飯、喝水、刷牙、漱口,都會(huì)一次次打亂它們的“破壞計(jì)劃”。尤其是時(shí)長(zhǎng)足夠、方式正確地刷一次牙,可以把牙面上的細(xì)菌清掉一大波;而唾液也很有多效防護(hù)作用,既能沖刷殘?jiān)帜苤泻退嵝裕种萍?xì)菌生長(zhǎng)。
Under normal circumstances, regular brushing, eating, rinsing, and drinking help keep bacterial buildup in check. Brushing physically removes bacteria from tooth surfaces, while saliva helps wash away food particles and acts as a buffer that neutralizes acids and regulates bacterial growth.
saliva /s??la?.v?/ 口水,唾液
但當(dāng)我們睡著之后,情況就完全不一樣了。你睡了,細(xì)菌卻“醒了”。睡覺(jué)時(shí),我們不再吃東西,牙齒失去了咀嚼帶來(lái)的“自潔”作用;同時(shí),唾液分泌也減少了,沖刷和抑菌的能力都跟著下降。
如果這時(shí)候還沒(méi)刷牙就入睡,口腔里的細(xì)菌就沒(méi)了天敵,它們牢牢地貼在牙齒上,整夜都在搞破壞。這不僅會(huì)大大增加蛀牙的風(fēng)險(xiǎn),還會(huì)傷害牙齦,時(shí)間長(zhǎng)了可能引起牙齦出血、口臭等問(wèn)題。
When brushing is skipped before sleep, bacteria are left undisturbed for hours, allowing them to accumulate and damage the teeth. This prolonged exposure increases the risk not only of cavities but also of gum disease, bleeding gums, and bad breath.
所以,睡前刷牙其實(shí)就是在細(xì)菌最猖狂、口腔最脆弱的時(shí)候,提前做一次徹底的“清場(chǎng)”,讓牙齒安安穩(wěn)穩(wěn)地度過(guò)一個(gè)夜晚。
早餐后刷牙:吞下細(xì)菌問(wèn)題不大
那如果不刷牙就吃早餐呢?
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經(jīng)過(guò)一夜的“細(xì)菌派對(duì)”,早上起來(lái)口腔里的細(xì)菌數(shù)量確實(shí)達(dá)到了一個(gè)小高峰。你可以用手指甲輕輕刮一下牙齒表面,可能會(huì)刮下來(lái)一層滑滑的、黃黃的東西,這就是牙菌斑,里面全是細(xì)菌和它們囤的“干糧”。
What happens if you skip brushing in the morning before breakfast?
Upon waking, the mouth typically has a higher bacterial load, with plaque accumulating on the teeth. However, swallowing some of this bacteria during breakfast generally poses minimal risk, especially compared with leaving bacteria on the teeth overnight.
相比于比讓細(xì)菌在口腔內(nèi)直接作用于牙齒,將這些牙菌斑直接隨著食物吞咽下去的危害性可忽略不計(jì)。
一方面,胃里的胃酸非常強(qiáng)大,絕大部分細(xì)菌還沒(méi)到腸道就被“消滅”了;
另一方面,我們的消化道里本來(lái)就有很多細(xì)菌,它們大多數(shù)還是幫助我們消化食物的“好幫手”。
當(dāng)然,這也不是說(shuō)早上就可以不刷牙了。細(xì)菌雖然短時(shí)間內(nèi)接觸牙齒不會(huì)立刻造成傷害,但如果時(shí)間長(zhǎng)了,它們還是會(huì)在牙面上形成牙菌斑,慢慢腐蝕牙齒。經(jīng)過(guò)一整晚,細(xì)菌已經(jīng)在牙齒上“安營(yíng)扎寨”了,光靠咀嚼食物和唾液沖刷是趕不走它們的。所以,早上刷牙同樣很重要。
That said, this does not mean morning brushing is unnecessary. While chewing and saliva can help reduce plaque after a night's rest, they are far less effective than proper brushing and flossing. Cleaning your teeth in the morning remains an important part of maintaining oral health.
睡前必須刷,早上最好刷
總結(jié)一下,不刷牙睡覺(jué),相當(dāng)于把牙齒暴露在大量細(xì)菌中一整晚,這個(gè)習(xí)慣真的要不得。
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以下是牙科醫(yī)生的一點(diǎn)點(diǎn)建議:
①睡前一定要認(rèn)真刷牙
用含氟牙膏,配合巴氏刷牙法,把每一顆牙的每個(gè)面都刷干凈。別忘了用牙線清理牙縫里的“漏網(wǎng)之魚(yú)”。這是一天里最重要的一次口腔清潔,刷完要保持口腔環(huán)境,請(qǐng)勿再進(jìn)食。
② 早晚各刷一次,最好不偷懶
細(xì)菌是清不完的,但我們可以通過(guò)規(guī)律刷牙減少細(xì)菌對(duì)牙齒的破壞。一天刷兩次,是保護(hù)牙齒既有效又合理的頻率。如果你中午也能多刷一次,那當(dāng)然更好啦!
記住,無(wú)論多忙多累,睡前刷牙千萬(wàn)別忘,它是我們守護(hù)口腔健康最重要的一道防線。
你每天會(huì)刷幾次牙?評(píng)論區(qū)聊聊!
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來(lái)源:科普中國(guó)
跟著China Daily
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