\u7259\u9f52\u8b8a\u9ed1\u5605\u56e0\u7d20\u6709\u4e5c\uff1f
    • Last updated September 25, 2020
    • 0 comments, 138 views, 0 likes

More from vickong pun

  • \u6025\u6c42\uff1a\u5982\u679c\u60f3\u53bb\u6df1\u5733\u7a2e\u7259\uff0c\u53bb\u908a\u5ea6\u597d\uff1f
    1 comment, 0 likes
  • \u7259\u9f52\u6f02\u767d\u5605\u6b65\u9a5f\u6709\u908aD\uff1f\uff08\u4e0b\uff09
    0 comments, 0 likes
  • \u96b1\u5f62\u7259\u5957\u77ef\u6b63\u539f\u7406\u7cfb\u4e5c\u554a\uff1f\u96b1\u5f62\u7259\u5957\u4ecb\u7d39\uff0c\u6084\u6084\u8b8a\u7f8e\u5514\u4fc2\u5922\uff01
    0 comments, 0 likes

More in Politics

  • Norton antivirus account login
    26 comments, 118,993 views
  • Liquidity Locking Made Easy
    9 comments, 80,453 views
  • Ang jili178 login ay nagdudulot sa iyo ng mga laro ng slot at karanasan sa laro ng soccer
    2 comments, 44,993 views

Related Blogs

  • \u525b\u62d4\u5b8c\u7259\uff0c\u600e\u9ebc\u624d\u80fd\u5c11\u906d\u7f6a\uff1f\uff1f
    0 comments, 0 likes
  • AI Writer Tools and Services: Unleash Your Writing Potential
    0 comments, 0 likes
  • \u88dc\u7259\u5f8c\u7259\u75db\u539f\u56e0\u6709\u908ad\uff1f
    0 comments, 0 likes

Archives

Social Share

牙齒變黑嘅因素有乜?

Posted By vickong pun     September 25, 2020    

Body

牙齒變黑嘅因素有乜?
牙齒變黃系比較常見嘅一種現象,但系都有小部分人出現牙齒發黑嘅症狀,咁牙齒變黑嘅因素系乜?



牙齒變黑嘅因素有乜?



牙齒變黑嘅因素有乜呢?



1、斑釉牙



呢種症狀也被稱為氟斑牙,系由飲用水中過量嘅氟化物引起嘅,當氟化物濃度超過百萬分之一嘅時候,會影響牙齒胚芽嘅鈣化過程,出現牙齒表面發黃、唔均勻、條狀缺損等,有斑點嘅氟斑牙齒通常喺五歲之前就會發生鈣化。



2、四環素牙



呢種情況嘅發生,一般系兒童經常使用四環素,佢與體內嘅鈣結合產生一種黃色嘅四環素鈣複合物,呢種複合物沉積喺牙冠上,就會導致牙齒變黑。



3、吸煙



喺平時嘅生活之中,大家可以仔細嘅觀察,一般牙齒牙齒發黑嘅朋友們,都有吸煙嘅跡象,原因系煙草中嘅黃色物質附著喺牙齒上,久而久之,就會造成牙齒發黑。



以上就系「牙齒變黑嘅因素有乜?」嘅具體介紹,希望對大家有所幫助。


Comments

0 comments