While both are safe I find the best most natural results are with silicone gel
The improvements in both the saline and gel filled implants have been so great that both are very safe. Unfortunately they both can break but there are few ill effects from them breaking. The saline will certainly go flat and need to be replaced, the gel may not even be recognized as broken. In either case if the are broken they do not cause any systemic diseases and should not cause any significant local problems either.
However when I compare the results of a saline implant behind the...