Difference Between Allergan Style 15 and Style 40 Breast Implants?

I am having Breast implant replacement after 25 years because of capsular contracture, probably a leak, on one side. I want to go smaller, from 420cc low profile double lumen to 340cc moderate profile, silicone. Currently sub-pectoral & will remain so.

My question is: what is the difference between Allergan Style 15 and Style 40? Is one a different shape? Also, will there be a significant size difference with this switch? I would like to reduce by about a size. Thank you for your time.

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breasts capsular contracture leak female 300-349cc 400-449cc silicone implant low profile moderate profile replacement

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3 Doctor Answers | Asked by Gardenpath in Massachusetts

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Help understanding implant styles?

Hi there- The two implants you refer to have a different base diameter and projection, meaning that if you place the two next to each other on a flat surface (assuming equal volumes), one will be narrower and have a higher peak, while the other will create a larger footprint on the table but have a lower peak. Having said all of that, I think it is a tremendous mistake for patients to get too involved in the implant selection process, as there is no way for you to understand the... more

Implant choices

We have alot of choices now with implants where we can choose similar volume but use different shapes to accomodate patients with different anatomy.

Steven Wallach, MD

12 reviews

Manhattan Plastic Surgeon

Subtle differences between Allergan style 15 and 40 breast implants

The simplest answer is to go with what your surgeon recommends based on the base diameter of your breasts and the size you want. Having said that, the style 15 is very similar to the style 40 in terms of the projection to diameter ratio. The style 15 is a newer design, and we prefer it over the style 40 because it tends to ripple less. Both styles are round and should work well for you.