Is "roundness" of the upper pole more a result of the volume of the implant or the projection?

HP implants do not all look fake.  This is ridiculous.  Surgeons that simplify the complex discussion to this type of summary judgment are ignorant of the number of choices available from the three different manufacturers and have so little experience with HP implants that they have no business pushing you to make a choice based on this incredibly limited information.Roundness of the upper pole is certainly contributed to by profile.  However, if you use a saline HP implant filled to the low end of the range, it will not give you the upper pole fullness.  If you want upper pole fullness, first you must use saline HP implants.  Second you need to be in the upper end of the fill volume range for whatever implant you choose. Third, the larger the implant, the larger the diameter, the higher the projection, and the larger the surface area.  All of these things contribute to upper pole fullness.  Lastly, you need to pick a surgeon who has experience in this area.Now if you look at the silicone implants, even the ultra high profile devices, they don't have nearly the projection as the equivalent volume saline implants.  The Sientra HP implants have only 60% of the projection of equivalent HP saline implants.  Also, saline implants come in larger sizes.  You need to have a complex discussion with your surgeon about the available width, volume and projection of every implant that all of the manufacturers have to find the right one to achieve your goals.  You might end up choosing a Mentor, Allergan, or Sientra implant in silicone or saline.  HP
implants, which are a more modern shape than moderate profile implants, fit
most women better. They have a more appropriate base diameter and can be
made to look very natural or very augmented, depending on where in the range
the implants are filled to achieve a particular volume. High profile
implants are the first choice in my opinion. I rarely find an indication
to use moderate or moderate plus implants. The subtlety in the final
outcome is not achieved by which profile implant is used, it is determined by
the skill in the creation of the pocket, the choice of volume, and where in the
range the implant is filled.

The factors which contribute to the outcome of Breast Augmentation are #size, #shape, and #profile. The #profile is determined by the amount of #projection versus roundness that the you desire, as well as the #size of the implant and size of your chest. Also, the placement or incision location will also have an effect on profile.#Subpectoral or #submuscular implants refer to placement under the muscle which still remains the most common placement in the United States. #Submammary or #subglandular implants are the placement under the breast tissue in front of the muscle. This tends to more common in Europe and South America. General guidelines suggest that women with larger drooping (ptosis) breasts that do not want a breast lift often have the implant placed above the muscle, although another option, #DualPlane, has become more popular. In the Dual Plane method, the implant is placed under the pectoralis muscle but the breast tissue is also release, in part, from the muscle. Those patients with minimal breast tissue should usually have the implant placed beneath the pectoralis muscle for more soft tissue padding.Each implant have their benefits. #SalineImplants is made with a #silicone outer shell that is filled with saline water during the surgery. It is filled with sterile saline (salt-water). Since saline is like normal body fluid, it is safe and easily absorbed if the implants were to leakThe #implant shell is ordered in a specified size which can be filled to a minimum or maximum fill amount. This allows the plastic surgeon some flexibility with sizing during surgery. Often times a woman has breasts which vary slightly in size. If one breast is slightly smaller than the other, each implant can be filled to a different amount to create better symmetry. Saline tends to be a little less natural feeling than silicone, but it can also create a more dramatic upper breast appearance, which some women prefer. A new saline breast implants option called Ideal Implant™ was recently FDA approved and was created for women who are not comfortable having silicone implants in their body, but desire a more natural feeling implant than traditional saline implants on the market. The unique structure of the Ideal Implant allows for a similar look and feel as silicone with the safety of saline. #SiliconeImplants are made with a silicone outer shell and are filled with a gummy-bear consistency silicone on the inside. More women tend to choose silicone breast implants due to the natural feel and appearance. Silicone implants are now made of a cohesive gel which are anti-leak even when cut. Look and feel like natural breasts due to the cohesive silicone gel material. New generation silicone gel implants are far superior than those used in the past and have a proven track record of safety. Silicone implants have gone through more testing than any other medical device and are the preferred choice for over the muscle implant placement. To further ensure the safety, the FDA recommends women have periodic MRI testing to ensure their silicone implants are free from any defects. With both implant types there are choices Your Plastic Surgeon will measure you to determine the best shape, size and placement of the #implants to be used. Lastly, another important element to a satisfying result of your #augmentation is realistic #expectations.

The contour of your breast is determined by many factors including your starting breast volume, the consistency of your breast and breast skin and the shape of your implant.  It sounds like you understand the importance of using an implant that fits your chest width and are trying to determine the difference in the effect that the moderate or high profile will have on your breast shape.  Although that true effect can only be determined by your physician during a consult visit, high profile implants do provide more of a round appearance to the upper breast.  Because it sounds like you have a minimal natural breast tissue the shape of the implant will essentially determine the shape of your breast after augmentation.  If you desire a round look, the high profile implant is likely more suited to your goals and will provide a more significant change in size.  If you want a more subtle look, the moderate implant may be right for you.For many women it is helpful to see actual pictures of what your options for implants would look like in your body and some practices, like mine, have a 3-D imaging system called Vectra that allow you to do that.