Is there a big differance between silicon and saline side affects or dangers?

No. Saline implants are a silicone balloon filled with IV fluid-saline. Silicone implants are silicone balloons filled with silicone gel. Silicone implants are softer, more natural, with less chance of seeing ripples. There is minimal danger with each, but if silicone leaks it should be removed. The only way to diagnose a leak is with an mri.