Breast Implant Redo - Will Larger Implants Look Higher and Fuller?

In my opinion, you have an excellent appearing natural result. The size increase you describe will likely produce greater fullness but it will not likely be long lasting and may be relatively minor. If you truly desire greater fullness up top, you would  need a breast lift to reduce the size of the implant pocket in the lower portions of your breast. This will require significantly more scars and for that reason, I would adivse you to reconsider.

In my professional opinion, increasing your breast implant size from 450cc to 500 cc would not make a significant difference in terms of lifting your breasts. Depending on if you are happy with your current breast size or if you would like to be a little bigger, you can consider changing your breasst implants to a 500-550 size and also have a peri-areolar mastopexy. while the mastopexy will help to raise your breast, it will make the breasts look a little smaller or flatter, which can be balanced by increasing your breast implant size!