Which implants are the safest?

This is a common question for patients.  I think that silicone and saline implants are both safe.  Silicone has been on the market for a very long time as well and has a proven track record of safety.  There is no doubt that the newer generation of silicone implants (like the soft touch) is much better than what was available 10-20 years ago.  I don't believe you are taking a risk choosing a silicone implant these days.  Saline provides the "peace of mind" factor in that you know right away if you have a rupture or problem with your implant.  Many women do not know if there is a small rupture in their silicone.  Talk with your plastic surgeon and ask them as well to explain differences between the two choices and why they recommend that particular implant for you.  I use both and think we can obtain beautiful safe outcomes with either option.  Best of luck!

I have not used the Inspira prostheses. The concept is interesting, but not totally tried and true.
I personally prefer gel prostheses that are moderate-plus or high profile to give the ideal projection. In my practice, my gel/saline prostheses are 98%/2%. It is the patient's ultimate decision as to which prostheses to use. 
As far as saline prostheses, I think the "look and feel" of a gel prostheses is preferable. 

Thank you for your question.
Both saline and silicone are good implants, each associated with pros/cons;  in some cases, the use of a specific type of breast implant may be indicated for a specific patient.   

In my practice, the type (saline versus silicone gel) of breast implant utilized is individualized mainly depending on the patient's starting anatomy and goals.  The type of implant used may determine the final outcome, especially if the patient does not have significant covering breast or adipose tissue. For example, some surgeons feel that silicone implants have a more natural look and feel than saline implants because silicone gel has a texture that is similar to breast tissue. In other words, if a patient has very low body fat and/or very little breast tissue, the silicone gel implants may provide a more "natural" result.
 
 My best advice: select your plastic surgeon carefully. Make sure that he/she has significant experience achieving the types of outcomes you will be pleased with. Then, communicate your goals carefully, as  well. Working together you will come up with a good plan to achieve your goals.  

Best wishes.