My retainer pushed my front tooth upwards after the dentist repaired my chipped front tooth. How can this be fixed? (photo)

My orthodontist referred me a dentist after my top braces were removed to fix my chipped front top tooth. After my tooth was repaired my retainer didn't fix correctly due to the new shape. The orthodontist just tighten my retainer. Now. the same tooth is not aligned straight with my other front top tooth. The retainer pushed my tooth upwards. They should have just giving me a new retainer. How can this be fixed, since now both top front teeth are not the same in length?

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