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四環素牙有哪些特點？

Posted By vickong pun     July 9, 2021    

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　　四環素牙有哪些特點？

四環素牙有哪些特點？

　　 四環素牙有哪些特點？四環素牙主要表現爲牙的變色.初期呈黃色’在陽光的照射下 則呈現明亮的黃色熒光.以後逐漸由黃色變成株褐色或深灰色?前 牙比後牙著色明顯，乳牙若色比恒牙明顯.因爲乳牙的釉質較薄、 較透明，四環素牙有哪些特點？不易遮蓋牙本質中四環素結合物質的顔色。

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