How many cc of Silicone would I need in order to achieve DD from A sized breasts?

Probably 100-150 cc's more should do it, however your concept of a DD maybe different than mine. Therefore this is my best helpful considerations: It is very difficult to determine the exact size and shape implant you will require to best match your ideal breast image without an examination by a board certified plastic surgeon. Not just any board certified plastic surgeon, but one with many years of frequently performing breast augmentation surgery including different approaches, techniques and implant choices. This is because several measurements not to mention your breast characteristics are needed to determine the optimal implant size to obtain your goals. Without knowing these dimensions it would be difficult to make this determination. For example, the existing base width of your breast will determine, in many cases, the maximal volume per implant profile that you can accommodate. To illustrate; a 100 cc difference may make a significant difference with a narrow base width breast, but much less of a difference if you have a wide chest wall and wide breast “foot print”. Therefore, just because your friend may have a great result with let’s say a 350 cc implant to make her go from a “A” cup to a “C” cup size does not mean that you will have the same result with the same size implant. . Further simply placing implants in a bra to determine the size best for you is not always accurate as the bra often distorts the size, is dependent on the pressure the bra places plus the implant is outside your breast and not under it among other variables. Computer software morphing programs that automatically determine the best implant size can be helpful in some but not all cases (e.g. doesn’t work well in my experience with existing implants, sagging or asymmetric breasts). Using “want to be” photos however are useful if simply provided to the surgeon as I will further explain in the link below.

Hello,Well, there you've heard it: we can't determine a cup size, either online or in person.  I know it's frustrating because cup size is the only way (seemingly) that one can talk about breast size.  The problem is using it to determine the implant volume. One issue is that variability of cup sizing is great, or in other words, not standardized.  Another problem is individual perception of how a bra fits is also variable. Finally, the shape of your breast can affect how your breast fits into a bra, regardless of its actual volume. The most important thing is not what bra size you're wearing, it's how you look in the mirror.  I tell my patients that they'll need to increase their implant volume by at least 20% to appreciate any perceptible change.  For you, that would be 93 cc above your current implant volume of 465 cc, or about 550 cc.  Whether that's right for you would need to be determined by either using sizers in the office or showing photographs of desired appearance.One final note off subject.  Although you've apparently done well with a considerably large saline implant, further enlargement, even with a silicone gel implant, might put you at risk for rippling, possibly worse than you have now.  Additionally, there might be other unforeseen issues that could happen due to using 'extra large' implants. Please give extra consideration on whether to proceed further; remember, very large implants pose a significant risk of long term complications that may require multiple surgeries. Also, problems can occur that are not entirely 'fixable'.  If you decide to proceed, please consider using a revision breast specialist to maximize your result and minimize the risk of complications.Best of luck!