dental calculus 中文意思是什麼
dental calculus
解釋
齒石-
As the plaque gets harder and thicker, it becomes what is known as dental calculus or tartar, a hard calcified layer that is irtually impossible to shift with normal brushing, you would hae to get the dental hygienist to do it
菌斑變硬增厚,即形成所謂的牙垢或牙石,它是一層很硬的鈣化層,一般不能通過刷牙去除,必須得請牙醫處理。
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