Just food for thought, I have a friend who fell off her bike and hit her head. She got a head x-ray, and she didn't know she was already pregnant at the time. That baby is 6yo and fine.
I agree with cieloazul. Needing a crown can have a wide range of urgency. In my early 20's I moved a few times, so I saw several dentists. I'm trying to remember how long it was from when a dentist first told me I would eventually need a crown for a filling I had gotten as a child and when I actually got it. I called the dentist who did the original filling (my uncle) and he told me if I went to 10 dentists I'd get 10 different recommendations. It was probably a few months to over a year before I got the crown because I needed my wisdom teeth removed and did that first. The crown was not urgent at first, but it was by the time I got it.
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