Okay, here is the website of the databank:
You will see the English version link on the top right of the screen. However, it directs you a very limited English version, and, it is not effective.
Anyway, there, on that address, the online application and the product registration process after the approval of the application can be done, but in Turkish.
And, to answer your question, I can clearly state that you donot need to register your company and your products if you won't sell those to goverment or goverment related organizations. However, this is nearly impossible for most of the products, thus, you ought to register anyway. Because, if there are other companies which have registered their products and if those products are paid back by the health funding system, you will not be able to compete with them as anyone will choose to buy those products instead of your products.
I hope that was helpful. If you need more assistance come back.