Answer:
Whitney definitely did not have the same gorgeous set of teeth she use too. It is evident that she either had false teeth, veneers or implants. It changed her whole smile, the way her teeth sat in her mouth was not the same. I do not believe she went for teeth whitening before her death. You can't bleach any of the three potential possibility I mentioned above. Look at her Oprah interview from 2009. She even struggles to talk with these new set of teeth.
The Cosmetic Dentist who did this work should be FIRED! They could have done a much much better job. If I had to guess, they are implants or Veneers.
Shame, she had a wonderful smile. I still loved her personality, her beauty inside and out and of course that voice that once was, will always be the BEST!
God Bless you Whitney. I always was rooting for you sweet angel.
Jen
Miami,FL