UDK: 616.314-74

ASSESSMENT OF THE INFLUENCE OF THE ORAL ENVIRONMENT ON THE STRENGTH OF ENDODONTIC CROWNS MADE OF HYBRID CERAMICS IN THE LABORATORY

A.V. Sevbitov1, A.E. Dorofeev1, K.A. Ershov1, Yu.I. Enina1, S.I. Kalinovskiy2, I.G. Pustokhina1

1Институт стоматологии им. Е.В. Боровского ФГАОУ ВО «Первый МГМУ им. И.М. Сеченова» Минздрава России (Сеченовский Университет), кафедра пропедевтики стоматологических заболеваний; 2ФГБОУ ВО «Рязанский государственный медицинский университет им. акад. И.П.

Abstract

A topical issue in dentistry is the problem of restoring teeth after endodontic treatment. There are many materials available to restore them. However, each of them has its own negative properties. The purpose of this work was to determine the degree of influence of the oral environment on the strength characteristics of endocrowns made of hybrid ceramics. 30 samples from hybrid ceramics were examined. One of the groups was confirmed by thermal Cycling, and the other was not. Further, both groups on the Instron-5982 device were subjected to vertical compression load before the destruction began. According to the results of this study, it can be noted that endocorns made of hybrid ceramics perfectly distribute the occlusal load and have good elasticity, but thermal Cycling has a negative impact on the strength characteristics of this material.

Keywords

hybrid ceramics, thermal cycling, indirect restoration, endocrown, dentistry.

Contacts

Севбитов Андрей Владимирович – д. м. н., профессор, заведующий кафедрой пропедевтики стоматологических заболеваний Института стоматологии им. Е.В. Боровского ФГАОУ ВО «Первый МГМУ им. И.М. Сеченова Минздрава России» (Сеченовский Университет), е-mail: avse