問題詳情
2.下列專有名詞的解釋，何者正確？
(A)attrition: pathological wearing away of tooth structure secondary to a chemical agent.
(B)abrasion: loss of tooth structure caused by a non-bacterial chemical process.
(C)demastication: tooth wear accelerated by chewing an abrasive substance between opposing teeth.
(D)perimolysis: loss of tooth structure caused by a mechanical process.
參考答案
答案：C
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A. attrition: los☆ ☆☆ ☆☆☆☆☆ ...