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遠古人類如何鑽補齲齒治療牙痛
Saturday, November 5, 2016 1:27
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想像一個沒有牙刷、漱口水和牙線的世界。很容易,對嗎?每個人口腔裏都會有蝕齒,每個小鎮都會有很多牙醫。在非洲發現的最早的史前人類似乎證實了這一點。1921 年,在卡布韋或布羅肯希爾(位於現在的贊比亞)工作的…

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