Should my temporary crown look this terrible? (photos)

If you like your crowns still and they are in good shape, then use Invisalign to get them back into alignment.

  Hello. Yes, you can replaced it but is a metal crown over implant for the next crown do one in Zirconia that is more esthetic. 

Yes, that is possible through orthodontic treatment to extrude posteriors. I advise visiting an orthodontist to check cephalometric values and how much correction is required and whether is it possible through brace treatment.

I would take the guard to the dentist and have them adjust it in the area of the front teeth. Sometimes a night guard will fit so tightly, it will cause discomfort in some of the teeth.

Yes, it can be possible. Go to one specialist to value if will be durably, esthetic and functional and get the best option the doctor proposed you. 

There are a number of different factors that go into the decision of crowning vs. extracting your wisdom tooth. The pertinent clinical findings that only your dentist can determine gives her the unique ability to make this call. I can, however, tell you that removing your wisdom tooth will not ...