XXI-st century is characterized by the development of biotechnology, thus increased the age of some people and increased their standard of living. The same applies to the biomechanics, the application is in medicine has increased the quality of care. Biomechanics prosthetic dentistry has spread mainly through the theoretical work of German dentists who replace outdated methods of dentists of the past, based on experience (empiricism) developed a modern, rational methods, considering questions of clinic from the perspective of theoretical mechanics. It should be noted that all of them considered clinical stage only in one position, for example, the amount of force direction of stress, strain, force moments. However, we know that the force – the vector that has 3-parameters (magnitude, direction and point of application).
You can not consider the individual steps in isolation, that is, the amount of force without its direction and point of application. This was the reason that everyone working on the occlusal surface of the force, we have considered taking into account the force vectors chewing load. Any movement in nature (human, aircraft, train animal) science considers as a mechanical process, so even a slight movement of the lower jaw and teeth are the biomechanical reaction, and when contacting the teeth appear biomechanical phenomena described in detail in there. LAB, 1, 2006 and other articles on the site. Accounting for these phenomena, especially the moment of force (M) is of paramount importance for the stability of the teeth and their long-term in each design of prostheses.