The Use of a Composite-Reinforced Stump Post for Prosthetics of a Complete Defect in the Crown Part of the Tooth
The problem of orthopedic treatment of the complete defect of the crown part of the tooth is relevant due to its prevalence, the existing shortcomings of the known methods of prosthetics and their lack of effectiveness. The preservation of such teeth and their orthopedic treatment makes it possible to prevent the occurrence of defects and deformations of the dentition, to preserve the natural mechanism of transfer of chewing pressure, to restore the anatomical shape and function of the destroyed tooth. The aim of the work was to improve the results of orthopedic treatment of patients with a complete defect in the crown part of the tooth by developing, scientifically validating and introducing a prosthetic method using a composite reinforced stump post. A new method of prosthetics for a complete defect in the crown part of the tooth, based on the use of the proposed composite-reinforced stump post, was developed and introduced into the practice of health care. It has been experimentally proved that the use of a composite reinforced stump post insert allows to reduce the value of the equivalent Misses stresses in the root of the tooth, the fixing material and the post structure itself, in comparison with the use of traditional stump post inserts. A method for experimental-biomechanical evaluation of pin designs with the use of fatigue tests was developed, which allowed to prove the high fatigue strength of the proposed composite-reinforced stump post insert. The developed method of prosthetics with the use of a composite-reinforced stump post insert allowed to reduce the incidence of complications and improve the results of orthopedic treatment.