**2. Historical perspective**

The first researcher who developed this technique was Richard Courant, a mathematician with the main goal of minimizing the calculative procedures in gaining absolute solution to bio-mechanical system in early 1940's. Turner et al*.,* in 1956 attempted to describe this method by developing broader definition of these numeric analyses in aeronautical engineering. Ioannis Argyris and R.W Clough coined the term 'Finite Element' in 1960. Weinstein et al*.,* in 1976 used this technique in implant dentistry to evaluate various loads of occlusion on implant and adjacent bone. Since then, evolution of this technique has been observed in a very rapid and sophisticated scale in micro-computer as well as analysis of large-scale structural system [1, 2].
