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Биомеханический анализ зубных имплантатов из сплава титана и диоксида циркония

Биомеханический анализ зубных имплантатов из сплава титана и диоксида циркония

Abstract

На этапах выбора конструкции и в процессе установки зубного имплантата учитываются его оптимальные параметры. Определение последних зависит от объема костной ткани нижней челюсти и ее механических свойств. При выборе конструкции следует оценить уровень нагружений, развивающихся в процессе функционирования. В данной статье рассматриваются два вида систем: имплантаты из сплава титана и конструкции, выполненные из диоксида циркония. Оценивается возможность применения имплантатов на основе диоксида циркония путем анализа напряженно-деформированного состояния как самого имплантата, так и зоны имплантат-кость, где возникают большие перепады напряжений. Полученные напряжения в системе сравниваются с предельными напряжениями как для имплантата, так и для кортикальной и губчатой костной ткани.

The optimal parameters of implants are considered at the stages of choice of construction and process of implant placing. Determination of implant parameters depends on volume of bone tissue of the lower jaw and its mechanical properties. Level of loadings developing in the process of functioning should be estimated at choice of construction. In this paper, two types of implants are considered: implants from titanium alloy and constructions from zirconium dioxide. Possibility of using of implants from zirconium dioxide is estimated at analysis of stress-strain state of implants and implant-bone zone. Large stress drops occur in this zone. Obtained stresses in system are compared with ultimate stresses for implant and also for cortical and trabecular bone tissues.

Keywords

НАПРЯЖЕННО-ДЕФОРМИРОВАННОЕ СОСТОЯНИЕ, ПРОЧНОСТЬ, ЗУБНОЙ ИМПЛАНТАТ, СПЛАВ ТИТАНА, ДИОКСИД ЦИРКОНИЯ, КОНЕЧНО-ЭЛЕМЕНТНЫЙ АНАЛИЗ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average