热点: SQL Error: select id,classid,ttid,onclick,plnum,totaldown,newspath,filename,userid,username,firsttitle,isgood,ispic,istop,isqf,ismember,isurl,truetime,lastdotime,havehtml,groupid,userfen,titlefont,titleurl,stb,fstb,restb,keyboard,title,ftitle,bigpic,newstime,titlepic,smalltext,diggtop from ***_ecms_news order by rand() limit 4

牙齿美白别陷三误区

时间:2018-07-31 18:31:01 来源:健康文摘报作者:牙齿点击:

导读:[db:简介]
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为了美齿,不少人往往会走入误区严重的还会影响齿健康

误区1 含食

含食以后再做法是非常错误危险的。食里的酸能使齿表层溶解,如果接着再齿表层的釉质就会被去除。虽然齿的确能看起来一些,但是付出的代价就是齿越来越薄、越来越小。而且这种齿表面在显微镜下看是极其不规则的,很容易沉积其他的色素。也就是说,使用这种方法的几天内,齿会看上去可能一些,但长时间来看,反而更容易

误区2 用柠檬汁擦齿

柠檬汁里的柠檬酸是一种有机酸,同样会腐蚀齿表面,损坏釉质。所以不该用柠檬汁来美齿。平时食物饮料,比如酸味蜜饯、话梅、果汁可乐碳酸饮料后,应立即用漱口,以减少物质在齿上的附着。切记:不可立即。因为此时齿在酸的作用下硬度大大下降,马上很易造成釉质磨损,从而引起敏感缺损。最好在后半小时再

误区3 长期用洁

其实洁粉与日常、洗清洁齿去渍去垢的方法一样,只是对齿表层污垢污渍进行清洁,并不能美齿,它最多只是还原了齿原本的颜色。而且长期使用粉,对釉质伤害很大。

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