Tiffany toward the end of her career suffered a breast implant failure and so she had them removed.
This photo was taken soon afterward. Still beautiful but just not the same. 
No she was never the same
To be 100% accurate yes she did have a failure but then had smaller ones put in, as I recall 800 CC because at the time that was as big as you could get and it was WAY before there were any PS that were willing to go the route of using "tissue expanders" as anything approaching "permanent" like we now see with the likes of Mary Madison