105lbs, 5'2 height, 13cm breast width. Will 425cc-450cc be to big? (photo)

400+ High profile implants are going to really stand out and look big.  You might be ok with 400+ moderate profile. 

Hello,Cup size cannot be determined based on implant volume, so your surgeon shouldn't have implied you'd be wearing this bra size, whether he is right or wrong. Cup size is a bad way to talk about augmentation anyway. In-office sizing in front of a mirror will give you immediate feedback how you'll look with a given implant volume. The bra you may be wearing after your surgery is really irrelevant. Beyond your aesthetic goals, tissue based measurements are crucial to ensure your implant choice does not surpass your anatomic capacity.  Too frequently both the surgeon and the potential patient talk about breast width as if it were the only measurement used to make this determination. It is not, and it is not even the most important of measurements.  You should revisit your surgeon as soon as possible, get measured (not just BWD), and get sized. As an aside, you should also request an inframammary incision and the use of an implant funnel to reduce your risk of capsular contracture.Best of luck!

 Thank you for your question. Using tissue based measurements to plan breast augmentation, I believe that's the size that you are picking is too big. I also believe that based on your own size and dimensions it will make you look top-heavy. I think the point of breast augmentation Is to try to have enough for results that people don't know that you have had surgery instead of making you look fake  and obvious that you've had a breast augmentation. Size is truly a choice that you make and if you'd like to be big, you can push the envelope to about 350 or so but I would not go much bigger. 

Thank you for your question.  The best advice would be to schedule a consultation with a board certified plastic surgeon so you may be further evaluated.  During your consultation you should be able to utilize sizer implants and then be able to visualize which size implant best helps you achieve your overall desired look.  You will also be able to address your concerns, discuss your goals and then together build the surgical plan that will best help you achieve those goals.With kind regards,Lane F. Smith, M.D., F.A.A.C.S., F.A.O.H.N.S., F.A.B.F.P.R.S.Las Vegas Plastic Surgeon

Hard to answer this question without specific breast measurements AND an in person exam. Remember to choose a board certified plastic surgeon who actually takes the time to measure you and examine your breast pocket. Also remember that sizers will only give you a rough estimate. The goal of breast augmentation is to optimally fill your breast pocket, not to overstuff or understuff it. At my practice, we utilize a series of 5 breast measurements that help me determine the implant size, which in turn helps me deliver a 24 hour recovery. Do your research and choose a surgeon who takes the time to sit down with you and discuss your goals/expectations to determine the best size for you. In general, moderate profile gives you a more natural look while high profile give you the rounded, shelf push up bra look. Good luck!