BlobNotFoundThe specified blob does not exist. RequestId:880dbc13-301e-0027-67af-10a220000000 Time:2019-05-22T15:04:16.0371810Z BlobNotFoundThe specified blob does not exist. RequestId:713ba354-e01e-012a-04af-100b79000000 Time:2019-05-22T15:04:16.0422139Z BlobNotFoundThe specified blob does not exist. RequestId:12402f07-801e-0053-21af-102466000000 Time:2019-05-22T15:04:16.0404239Z
BlobNotFoundThe specified blob does not exist. RequestId:16f5558a-701e-00e7-6aaf-102864000000 Time:2019-05-22T15:04:16.0390616Z
BlobNotFoundThe specified blob does not exist. RequestId:13a7c22f-b01e-0079-2faf-105123000000 Time:2019-05-22T15:04:16.0413937Z

牙齿并非越白越好

健康 来源:广州日报 2017年11月03日 09:37 A-A+ 二维码
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原标题:

  健康的牙齿不是白色的,而是半透明的淡黄色。牙齿的颜色和牙釉质的钙化程度相关,钙化好,透明度就好,硬度也就越高。正是因为透明度较高,可以透出牙本质的乳黄色,所以牙齿看起来淡淡发黄。

  钙化不好或发育有缺陷的牙釉质,透明度差,看起来比较白。这种牙抗龋坏的能力比较差,强度也差,更容易磨耗或龋坏。如果发现新生的牙齿钙化不高,呈现苍白色,牙釉质也不透明,应该注意刷牙,使用含氟牙膏,以提高牙齿抗龋坏的能力。

  (摘自《中国妇女报》)

BlobNotFoundThe specified blob does not exist. RequestId:2fa81398-401e-0028-54af-104fd6000000 Time:2019-05-22T15:04:16.0461167Z 牙齿 | 钙化
BlobNotFoundThe specified blob does not exist. RequestId:946c6ab8-f01e-0031-0daf-1063be000000 Time:2019-05-22T15:04:16.0456787Z
我要纠错编辑:邹杨 责任编辑:张福伟
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BlobNotFoundThe specified blob does not exist. RequestId:746a43b7-e01e-00e9-28af-10c46f000000 Time:2019-05-22T15:04:16.0451149Z
BlobNotFoundThe specified blob does not exist. RequestId:1fd2f195-401e-004e-6aaf-10fd8c000000 Time:2019-05-22T15:04:16.0455006Z BlobNotFoundThe specified blob does not exist. RequestId:699009f2-201e-013c-6daf-10cae7000000 Time:2019-05-22T15:04:16.0456524Z BlobNotFoundThe specified blob does not exist. RequestId:504eda55-201e-0033-73af-106144000000 Time:2019-05-22T15:04:16.0454880Z
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