\u7c21\u8ff0\u56db\u74b0\u7d20\u7259\u5605\u75c7\u72c0\u8868\u73fe
    • Last updated July 11, 2021
    • 0 comments, 103 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
    31 comments, 143,753 views
  • Liquidity Locking Made Easy
    10 comments, 82,849 views
  • Ang jili178 login ay nagdudulot sa iyo ng mga laro ng slot at karanasan sa laro ng soccer
    2 comments, 46,384 views

Related Blogs

  • Upgrade Your Living Room with a Stylish and Functional Modular Recliner Sofa
    0 comments, 0 likes
  • 300-835 Free PDFs: Get Ahead Of The Game
    0 comments, 0 likes
  • \u5e7c\u5152\u7684\u53e3\u8154\u4fdd\u5065\u65b9\u6cd5
    0 comments, 0 likes

Archives

Social Share

簡述四環素牙嘅症狀表現

Posted By vickong pun     July 11, 2021    

Body

四環素牙又稱染色牙,系小兒喺牙齒發育鈣化基期服用了四環素類葯物,造成牙齒硬組織嘅礦化抑制,表現為牙齒變色或釉質發育唔全,使牙齒呈黃色、灰色或灰黑色。牙齒發育時,牙釉質和牙本質喺一層基底膜嘅兩側同時開始形成,若此時服用了四環素類葯物,葯物進入體內後就喺牙本質和牙釉質中形成黃色層,且牙本質中嘅沉積要比喺釉質中高4倍。
四環素牙症狀
四環素牙症狀
——四環素牙嘅症狀表現為:1、四環素鈣復合物喺牙本質中嘅沉積要比喺釉質中嘅高四倍,呢也系四環素牙顏色難以去除嘅重要原因,由於黃色層呈波浪形,似帽狀,大致與牙嘅外形一致,所以成個牙齒均有顏色嘅改變。2、四環素牙開始多為黃色,喺陽光照射下呈明亮嘅黃色熒光,以後由於陽光作用而逐漸由黃色變成棕褐色或深灰色,所以呢種改變以前面嘅切牙為先。3、一般牙齒着色嘅程度與四環素嘅種類、劑量和畀葯嘅次數有關。4、四環素牙嘅前牙着色比後牙明顯,乳牙着色比恆牙明顯,因為乳牙嘅釉質較薄、透明,唔易遮蓋牙本質中嘅黃色復合物。5、四環素牙引起牙齒着色嘅釉質發育唔全喺牙齒發育期較明顯,但6-7歲後再用呢類葯物,引起嘅牙齒變色就唔會太明顯。6、四環素牙呢類人,大部分都有妊娠、哺乳期或兒童期服用四環素類葯物嘅病史。

如有疑問,可以通過WeChat&WhatsApp進行咨詢,就診請提前book位,預約之後提前安排牙醫,另可免問診金、免排隊,另可享牙醫9折優惠。

Comments

0 comments