https://mobile.nytimes.com/blogs/well/2015/12/04/ask-well-is-tooth-polishing-necessary/?referer=
文章结论是不需要,确实会伤enamel,但程度不足以造成牙齿损伤
不过看下边的评论,好象反对不打磨的人也不少
https://mobile.nytimes.com/blogs/well/2015/12/04/ask-well-is-tooth-polishing-necessary/?referer=
文章结论是不需要,确实会伤enamel,但程度不足以造成牙齿损伤
不过看下边的评论,好象反对不打磨的人也不少
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这里有polishing equipment的图,不是小“砂轮”
-Gbdjw-
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01/16/2017 postreply
11:40:11
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她就是那么一说。用的是有打磨颗粒的"牙膏",说是温和一点的小砂轮也说得过去
-Manymore-
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01/16/2017 postreply
11:43:07
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