My area of research is 3D printed electromagnetics and circuits.  We can build structures nobody could before so we can explore concepts that nobody else could before.  It is a pretty exciting time for my field.  If this is of interest to you, come see our website:

http://emlab.utep.edu/

I am using 3d printing for fabrication of prosthesis. Many problems which are there in fabrication of prosthetics can be eliminated by 3d printing.

Yes, 3DP created a revolution on fabricating things that are near to our live. 3DP offers great advantage for complex shape parts. The range of products can be ranging from prototypes for model purpose up to functional clinical replacement such as scaffold and for tissue engineering (TE). 

For prothesis/clinical replacement, it will be a huge advantage for custom-made replacement that fits the need of each patient. 

The possibilities are near limitless as described above. We have some 3D printers here at Liberty (MakerBot 5th Gen Replicators), but those aren't anywhere near the most sophisticated ones. 

Here are some of the organ-oriented and bioengineering prospects (see attached files).

Rayudu Nithin manohar:  Have you heard about the E-nable project? It is an organization of small companies, universities, and those who just have 3D printers, who come together to make free 3D printed artificial hands for kids. 

Here is their facebook page (see link below).

https://www.facebook.com/enableorganization