How do I know I was given the implants I chose? Is the Dr supposed to show me.

You will receive a card with the implant information from your surgeon. That is all you need to have for any future issues. Sientra has a lifetime replacement policy for implant rupture, and they were also the first company to offer coverage for capsular contracture.

Although your Sientra implant warranty is "free" and includes lifetime replacement  of the actual implant and 10 years of partial payment of surgery fees to replace your implant if ruptured, your surgeon needs to fax a form to Sientra which includes info about your implants and the surgery date and your name/address/contact info.Ask your surgeon for a copy of that registration form, since without faxing that to Sientra your warranty will not be activated!The stickers on the form from the implants should say "Sientra" on them.Keep a copy of that registration form with your important records.  Hope this helps!  and best wishes for the best result. You chose an awesome implant.