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I don’t understand how the teeth filing worked without causing life-long issues leading to the tooth falling out? And that picture makes it look like the enamel re-coated the filed area, which doesn’t happen.
2 points
I guess they kinda just accepted the sensitivity and higher chance of a broken tooth. It’s like how we know how wearing high heels all the time fucks up your joints but the social convention is still there and people still follow it.
And it might just be the discolouration but the filed areas are darker and more yellow than the non-filed areas, so I think we’re just looking at the (probably tertiary) dentin.
