生物学と医学

概要

Study of Bridges between Natural Teeth and Implants during Chewing of Food Bolus

Sergey Vasilievich Chuykin, Sergey Anatolievich Lazarev, Valentin Nikolaevich Pavlov, Oleg Sergeevich Chuykin and Mokhmad-Kamir Ramzanovich Elibiev

Application of finite element three-dimensional modeling in biomechanics can significantly expand the possibilities of solving many problems of practical and theoretical dentistry. These problems can be solved with the application of the principles of systemic structural strength analysis, which considers both geometric characteristics and mechanical properties of bone tissues. A development of a mathematical model of the system “prosthesis-the bone-implant” with the aim of identifying the most optimal placement of these elements relative to each other. With the application of different variants of the load on the implants in the bone tissue, the resulting pattern shows that prosthetic restorations experience a greater degree of tensile stress. It was observed that the situation of the dentition defect was due to an absence of the first and second premolars and the replacement of the first molar with the prosthesis. The load applied to bridges was defined as concentrated and distributed. The implant is installed on the site of the first premolar in the initial stage (concentrated load capacity). Thereafter, it is experiencing a minor internal stress, while chewing and increasing the area of the chewing surfaces, these stresses accumulate to a great extent with the participation of three teeth in chewing, a further increase in chewing surface leads to a decrease in stress values.