11 个月on MSN
When acid-generating bacteria accumulate on unbrushed or poorly brushed teeth, they readily dissolve the minerals in the ...
来自MSN28 天
Healthy teeth are wondrous and priceless: Dentist explains why and how best to protect themWhen acid-generating bacteria accumulate on unbrushed or poorly brushed teeth, they readily dissolve the minerals in the enamel. Like hair or fingernails, the non-innervated enamel is not sensitive.
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