We have seen a very low number of FDA approved silicone implants leak. Most silicone implants will end up lasting a lifetime. However, there have been many large studies (link) that have proven silicone implants are just as safe as saline. In fact, the amount of leakage is less from a silicone implant (link) than a saline implant meaning the silicone implant will keep its shape longer. This is why today most breast augmentations and reconstructions are done with silicone implants.