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Wondering if what the dentist said about a 3rd molar taking over for a 2nd molar is true.
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DanielFriesen posted:
I'm 24, my upper right 2nd molar is damaged and I have the normal options of extraction or a root canal + crown.

I'm already planning to have the tooth extracted so that's not what my question is about. (I have limited finances. Other teeth needing filling that would be a better use of the money needed for a crown. And that tooth's circumstances seem fairly good for an extraction.)

The tooth has lacked most of it's actual chew-capable surface for awhile so I'm pretty certain I don't really rely on it for eating.
The wisdom tooth behind that upper right 2nd molar has not erupted.
The dentist says that part of my 1st molar sits on top of the tooth below the damaged upper molar. So it should reduce the chance of the lower tooth over-erupting.

Now what I'm actually asking about is something else the dentist told me. He told me that given this scenario there's actually a chance that the unerupted upper wisdom tooth/3rd molar behind the would-be extracted tooth may actually move forward and erupt essentially taking over the spot the 2nd molar had taking it's place.
So I'm wondering. Does such a thing actually happen? Information online to conform or deny that as a possibility is fairly scarce.
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