Gummy silicone vs saline implants - which are softer?

Cohesive gel?…Form stable?...Gummy Bear?…what do these terms have in common? With the recent introduction and FDA approval of the next generation of devices, the attention of patients, physicians and the media has been focused on these terms. While these devices have certainly captured the public’s attention, an in-depth understanding continues to evade most.
Following the FDA moratorium on the use of silicone gel filled breast in 1992, “cohesive gel implants” were introduced to the market. How do these devices differ from their predecessors? The silicone gel of a cohesive gel implant is firmer (via the addition of proprietary cross-linker). The greater the cross-linking the firmer the device will feel. The result is a filling that doesn’t leak when the shell is compromised in the way that a traditional liquid does. This quality is best illustrated when cutting a device in half…it doesn’t yield a gooey mess but instead two stable halves.
Generally speaking today’s silicone implants are all “cohesive gel implants.” This broad term has been inappropriately applied to the next generation of “highly cohesive gel implants.” However, the recent media attention on “cohesive gel implants” is not warranted and is in fact misplaced.

These newest devices to reach the market are form stable implants. These higher strength silicone gel implants were approved by the FDA in March 2012. They contain a more “highly cohesive gel.” This increase confers upon these devices the ability to maintain shape irrespective of position. This quality has earned them the informal nickname of “Gummy Bear” implants. Imagine cutting into a gummy bear candy and the effect is the same.
While these implants are new, “novelty” does not necessarily equal “better.” There is a device for every patient. Form stable implants have both advantages/disadvantages. The advantages are: shape retention, no shell folding/wrinkling, no leakage, decreased capsular contracture. The disadvantages include: increased cost, limitations related to access incision, increased technical difficulty, device rotation.
In general, traditional silicone implants are preferred over saline implants by many patients and surgeons for their more natural feel. As when making decisions about any form of surgery, patients should have an in-depth consultation with their board certified plastic surgeon before selecting the type of implant to use. While form stable anatomic implants are newer, they may not be suitable for all patients.

Dear Fabulous979442,

breast implant type and sizing selection is a complicated process and requires a detailed consultation that includes a discussion of your goals, a detailed examination, and a lengthy discussion. But the decision will always start and end with the patient.
When it comes to sizing, we have all of our patients find 3 photos of their desired breast size. We ask for naked breast photos because clothing can obscure the true size (push up bras). Next, we consult with patients and go over the photos and take detailed breast measurements during a physical exam. Next, we using a sizing algorithm to determine a range of implants that will work based on the exam and the measurements.
Lastly, during the operation, we use silicone sizers in the operating room to see how the size actually looks in the breast. We sit the patient up in the operating room, while asleep of course, and compare the sizer result with their desired look photos. If it is too small, we start the process over with a slightly larger implant. We don't stop until we get the perfect match.
Of all of my breast augmentation patients, every one of them has been happy with their size due to this detailed and meticulous process. You don't want to invest time and money into a result that is either too big or too small.
You should discuss your concerns with a board-certified plastic surgeon and make sure that your surgeon understands your goals.



Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery