215cc or 245cc implant, which size would be best for me?

Either implant should work well with your frame. No one will be able to tell the difference in 30 cc so go withe the larger implant 

It is difficult to say without photos to base an opinion on. A 30cc difference will not make any visible changes I recommend going with the larger implant.

At size 34 AA each 100 cc’s of implant corresponds
to 1 cup size change.200 cc implants
would produce a full B.I always
recommend small round textured silicone gel implants placed retro-pectoral
since they look and feel more natural, are more stable, less likely to ripple
or have complications needing revision.Implant profile is irrelevant in the retro-pectoral position since the
muscle compresses it.Best Wishes,Gary Horndeski, M.D.

Most women wish they'd gone a bit larger after they get accustomed to their breast augmentation. I would advise you go with the larger of the two considered sizes.

Thank you for your question.  The selection of the implant size is one of the greatest areas of angst when considering a breast augmentation.  It is important to remember that volume, or cc's, is just one of the measurements that should be used when selecting implants.  I prefer to use a more three dimensional approach to implant selection, and believe that it leads to more natural results.  - The first dimension that needs to be considered is the width of the implant.  The width of the implant should match the width of your chest and the base of your breast.  This will avoid a large space between the breasts that can occur when an overly narrow implant is used.- The projection can then be chosen to obtain the look you are striving for.  Given your desire to be in the b cup range, I suspect that a moderate projection implant would be appropriate.- The volume can then be determined based on these two factors.  Keep in mind that it will likely be difficult to tell the difference between 30cc's in the implants that you are considering.  Also keep in mind that it is sometimes necessary to chose an implant that is slightly larger in order to have sufficient width to look natural. If you have any concerns, you should discuss this at length with your plastic surgeon prior to the procedure.Best of luck with your breast augmentation.Jeff Rockmore

Dear happy girl,   Front and side view pictures would have been very helpful. If indeed you are 34 small A cup, to become a 34 full B cup you will need implants with volume of , roughly, 300 cc. The sizes that you ask about will bring you to 34 small B cup  and 34 B+ cup, respectively. Always, consult with experienced board certified plastic surgeons who operate in accredited surgery center for your safety. Most importantly, check the before and after pictures to make sure that they are numerous, consistent and attractive. Check also the 'realself' reviews for positive patients experience which provides important information on the surgeons.                 Best of luck,                                   Dr Widder

Sorry, but pictures a must! I am guessing but the 245cc a better fit for your frame. I would think the 215 is too narrow for your chest /breast base diameter. Good Luck!

Without photos and in person exam- it's impossible to completely answer your questions. Sizing is best done as interactive process between and surgeon and his staff. 

I think the difference between the two implants is fairly small. A baggy test may give you an idea of the look and difference between the two implants.

Thank you for the question.  As you consider breast augmentation surgery, the most important decision you make is NOT size/profile of breast implant, but selection of plastic surgeon. Generally speaking, the best online advice I can give to ladies who are considering  breast augmentation surgery ( regarding breast implant size/profile selection) is:
1. Concentrate on choosing your plastic surgeon carefully.  Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you are looking for. Ask to see lots of examples of his/her work.  2.  Again, have a full discussion and communication regarding your desired goals with your plastic surgeon. This communication will be critical in determining which operation and/or breast implant size/type/profile will most likely help achieve your goals.
In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. I have found that the use of words such as “natural” or "B or C cup" etc means different things to different people and therefore prove unhelpful.
 Also, as you know, cup size varies depending on who makes the bra; therefore, discussing desired cup  size may also be inaccurate.   Therefore, I ask that my patients not base their communication preoperatively OR  their satisfaction with the outcome of surgery postoperatively, on achieving a specific cup size. The use of computer imaging may be very helpful during this communication phase.
3.  Once you feel you have communicated your goals clearly,  allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals.  Again, in my practice, this decision is usually made during surgery.  The use of temporary intraoperative sizers, viewing the patient's breasts in the upright and supine position, are very helpful during the breast implant selection process.
I hope this, and the attached link (dedicated to breast augmentation for petite patients), helps.  Best wishes.