Will "shaving" teeth help with my flaring? (photo)

I recently got off braces and was disappointed to see my front teeth flare out. I talked to my ortho and he said that I could file down each tooth slightly to create some room to bring back the front teeth and reduce flaring. I visited another ortho and she said the same, except she also wanted to open my bite in order to further pivot the front teeth to reduce flaring. Is one of these options better than the other and will the shaving method, instead of extractions, make a big difference?

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