无糖口香糖同样损害牙齿
<p><span word="Dentists">Dentists</span> <span word="who">who</span> <span word="recommend">recommend</span> <span word="that">that</span> <span word="patients">patients</span> <span word="chew">chew</span> <span word="sugar">sugar</span>-<span word="free">free</span> <span word="gum">gum</span> <span word="after">after</span> <span word="meals">meals</span> <span word="may">may</span> <span word="need">need</span> <span word="to">to</span> <span word="rethink">rethink</span> <span word="their">their</span> <span word="advice">advice</span>, <span word="after">after</span> <span word="scientists">scientists</span> <span word="found">found</span> <span word="the">the</span> <span word="habit">habit</span> <span word="could">could</span> <span word="actually">actually</span> <span word="erode">erode</span> <span word="teeth">teeth</span>.</p><p>那些推荐自己的病人饭后嚼口香糖的牙科医生现在需要重新考虑一下这样的意见了，因为科学家们发现这样的习惯很有可能腐蚀牙齿。</p><p><span word="A">A</span> <span word="study">study</span> <span word="review">review</span> <span word="in">in</span> <span word="the">the</span> <span word="British">British</span> <span word="Dental">Dental</span> <span word="Journal">Journal</span> <span word="found">found</span> <span word="there">there</span> <span word="is">is</span> <span word="a">a</span> '<span word="hidden">hidden</span> <span word="risk">risk</span>' <span word="in">in</span> <span word="sugar">sugar</span>-<span word="free">free</span> <span word="products">products</span> <span word="that">that</span> <span word="are">are</span> <span word="promoted">promoted</span> <span word="as">as</span> '<span word="tooth">tooth</span> <span word="friendly">friendly</span>'.</p><p>英国牙科杂志近期的一项研究表明，那些所谓的无糖食品其实并不是对牙齿有益的。</p><p><span word="A">A</span> <span word="team">team</span>, <span word="from">from</span> <span word="the">the</span> <span word="universities">universities</span> <span word="of">of</span> <span word="Boston">Boston</span>, <span word="Helsinki">Helsinki</span> <span word="and">and</span> <span word="Souther">Souther</span> <span word="Nevada">Nevada</span>, <span word="examined">examined</span> <span word="the">the</span> <span word="role">role</span> <span word="of">of</span> <span word="sugar">sugar</span> <span word="substitutes">substitutes</span> <span word="used">used</span> <span word="in">in</span> <span word="products">products</span> <span word="to">to</span> <span word="tackle">tackle</span> <span word="tooth">tooth</span> <span word="decay">decay</span>.</p><p>来自赫尔辛基和南内华达州的波士顿大学的研究队伍对糖代品是否对蛀牙有用进行了实验。</p><p><span word="They">They</span> <span word="found">found</span> <span word="there">there</span> <span word="was">was</span> <span word="an">an</span> '<span word="unrecognised">unrecognised</span> <span word="risk">risk</span> <span word="of">of</span> <span word="acidic">acidic</span> <span word="flavouring">flavouring</span> <span word="in">in</span> <span word="sugar">sugar</span>-<span word="free">free</span> <span word="candies">candies</span> <span word="and">and</span> <span word="beverages">beverages</span>.'</p><p>他们发现在那些无糖的糖果和饮料中，有不可辨认的酸性物质。</p><p><span word="They">They</span> <span word="said">said</span> <span word="a">a</span> <span word="group">group</span> <span word="of">of</span> <span word="substitutes">substitutes</span> <span word="of">of</span> <span word="sugar">sugar</span> <span word="alcohols">alcohols</span> <span word="or">or</span> <span word="polyols">polyols</span> <span word="including">including</span> <span word="xylitol">xylitol</span> <span word="and">and</span> <span word="sorbitol">sorbitol</span> <span word="can">can</span> <span word="reduce">reduce</span> <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="cavities">cavities</span>.</p><p>他们说，但是一些替代品或是多元醇例如木糖醇和山梨糖醇会减少蛀牙。</p><p><span word="However">However</span>, <span word="they">they</span> <span word="also">also</span> <span word="increase">increase</span> <span word="mouth">mouth</span> <span word="acidity">acidity</span> <span word="which">which</span> <span word="erodes">erodes</span> <span word="dental">dental</span> <span word="enamel">enamel</span> - <span word="the">the</span> <span word="tooth">tooth</span>'<span word="s">s</span> <span word="hard">hard</span> <span word="protective">protective</span> <span word="coating">coating</span>. <span word="This">This</span> <span word="is">is</span> <span word="especially">especially</span> <span word="true">true</span> <span word="if">if</span> <span word="they">they</span> <span word="contain">contain</span> <span word="fruit">fruit</span> <span word="flavourings">flavourings</span>.</p>
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