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class="con_l fl">  <article class="ar_con bg louti"> <div id="e286xo47mbob" class="ar_title"> <h1>牙黃是什么原因?qū)е碌?/h1> <div id="e286xo47mbob" class="ar_title_b"> <div id="e286xo47mbob" class="sub_title clear"> <span id="e286xo47mbob" class="sp2 c6 fl">時(shí)間：<time class="fxtime">2016-03-25 17:45:00</time></span> <span id="e286xo47mbob" class="sp1 c6 fl"><em id="zuozhe" class="noshow">曉賢</em><em class="user_id noshow">752</em>由 <em class="nickname"></em> 分享</span> <span id="e286xo47mbob" class="fl arc_btn"></span> </div> </div> </div> <div id="e286xo47mbob" class="y_ju"><script type="text/javascript">a("title");</script></div> <div id="e286xo47mbob" class="con_article con_main" id="contentText"> <p> 　　牙黃是什么原因?qū)е碌?人人都想擁有一口潔白整齊的牙齒，但是有的人天天刷牙牙齒還是很黃，牙黃怎么辦?下面就由學(xué)習(xí)啦小編告訴大家吧!</p><p><strong>　　牙黃是什么原因?qū)е碌?/strong></p><p> 　　1、健康因素導(dǎo)致牙齒黃：</p><p> 　　牙齒在發(fā)育過程中由于營養(yǎng)不好或生過病，會使牙齒的鈣化受到影響，造成牙齒黃而松脆。</p><p> 　　2、水質(zhì)因素導(dǎo)致牙齒黃：</p><p> 　　有些地區(qū)，特別是有些山區(qū)，由于水中含氟量高，過多的飲用氟會造成牙齒黃，而且不是1-2個(gè)牙齒，是滿口牙齒黃。氟有防齲的作用，所以這些牙齒黃的人反而不易生齲齒(蛀牙)。</p><p> 　　3、藥物因素導(dǎo)致牙齒黃：</p><p> 　　現(xiàn)在大都數(shù)人都知道了四環(huán)素類藥物可導(dǎo)致牙齒黃，特別是在<a href='http://www.yishupeixun.net/zixun/ertong/' target='_blank'><u>兒童</u></a>(5歲前)服用影響更大。</p><p> 　　 4、衛(wèi)生習(xí)慣不良導(dǎo)致牙齒黃：</p><p> 　　有些人不注意口腔衛(wèi)生，沒有早晚刷牙習(xí)慣，牙齒的表面堆積一層食物殘?jiān)?、軟垢、牙石、煙漬、茶漬等。這些“黃牙”不是牙齒本身發(fā)黃，是不注意口腔衛(wèi)生造成的。</p><p><strong>　　如何預(yù)防牙齒黃</strong></p><p> 　　1、用溫水刷牙：刷牙前用35℃左右的溫水浸泡擠上牙膏的刷頭1—3分鐘，這樣可以使刷毛變得柔軟而有彈性，可以減少刷毛對牙齦的刺激損傷。</p><p> 　　2、每隔一個(gè)月?lián)Q一款牙膏：牙膏最好不要長期使用同一款，因?yàn)橥环N品牌、種類的牙膏的含菌量是固定的，長期使用同一種牙膏，口腔內(nèi)的細(xì)菌不但不會被殺死，還會產(chǎn)生抵抗。而且長期使用，牙膏接觸細(xì)菌的機(jī)會就更高，所以買牙膏最好選一個(gè)月用量的。</p><p> 　　3、多吃VC類護(hù)齒的食物：缺少維生素C，就可能出現(xiàn)牙周病，所以每天應(yīng)該多吃富含維生素C的護(hù)齒食物，如蔬菜、橘子、檸檬等，含有多種微量元素和豐富的維生素C。</p> </div> <div id="e286xo47mbob" class="y_ju"><script type="text/javascript">a("conten");</script></div> <div id="e286xo47mbob" class="pnum"> <ul id="page_slice"> <div id="e286xo47mbob" 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