We propose a method to develop a unique head model to be used in craniofacial surgery simulations. This method considers the shape of the head and skull structure and provides a polygonal model, which includes different tissue layers with realistic tissue thickness. We also introduce the use of the new deformation simulation technique called mass-spring chain algorithm in simulation of facial tissue deformations caused by operations on the bone structure. This method produces plausible results and considerably reduces the simulation time.