1) An expert in prosthetics 2) Expert 
A prosthetist, as defined by The American Board for Certification in Orthotics, Prosthetics and Pedorthics, Inc., is a person who measures, designs, fabricates, fits, or services a prosthesis as prescribed by a licensed physician, and who assists in the formulation of the prosthesis prescription for the replacement of external parts of the human b...
One skilled in constructing and fitting prostheses. ... (05 Mar 2000) ... 
(pros´thә-tist) a person skilled in prosthetics and practicing its application.
Type: Term Pronunciation: pros′the-tist Definitions: 1. One skilled in constructing and fitting prostheses.
[n] - an expert in prosthetics
prosthetist 1. A specialist in artificial dentures. 2. A maker of artificial body limbs. 3. Someone who is engaged in the fabrication and fitting of prostheses.
noun an expert in prosthetics
a person skilled in making or fitting prosthetic devices.