Innovative directions of development of ceramic materials for dentistry


  • O.V. Savvova O.M. Beketov National University of Urban Economy in Kharkiv, str. Marshala Bazhanova, 17, Kharkiv, 61002, Ukraine http://orcid.org/0000-0001-6664-2274
  • G.K. Voronov O.M. Beketov National University of Urban Economy in Kharkiv, str. Marshala Bazhanova, 17, Kharkiv, 61002, Ukraine http://orcid.org/0000-0003-1205-8608
  • O.I. Fesenko O.M. Beketov National University of Urban Economy in Kharkiv, str. Marshala Bazhanova, 17, Kharkiv, 61002, Ukraine http://orcid.org/0000-0003-3888-9493
  • Yu.O. Smirnova O.M. Beketov National University of Urban Economy in Kharkiv, str. Marshala Bazhanova, 17, Kharkiv, 61002, Ukraine
  • E. Bairamov O.M. Beketov National University of Urban Economy in Kharkiv, str. Marshala Bazhanova, 17, Kharkiv, 61002, Ukraine
Keywords:
glass-ceramic materials, lithium disilicate, ceramic prostheses, dentistry

Abstract

The need to improve the level of dental health of the population of Ukraine was identified. The prospects for the use of ceramic prostheses to provide quality medical care in dentistry have been established. An analytical review of various types of ceramic and glass-ceramic materials used as dental prostheses for tooth replacement: porcelain, alumina, zirconium oxide, glass-ceramics based on leucite and lithium disilicate and mica with the addition of fluorides. Peculiarities of the structure and operational properties of ceramic and glass-ceramic materials for dentistry have been identified, their advantages and disadvantages have been established. The effectiveness of the use of glass-ceramic materials based on lithium disilicate for dental prosthetics is substantiated. The basic lithium silicate system was selected and glasses for obtaining glass-ceramic crowns based on lithium disilicate by the method of high-temperature pressing and calcium phosphate-silicate system for obtaining glass-ceramic coatings were synthesized.

The methodological approach to the development of glass-ceramic prostheses based on lithium disilicate is determined. The limits of the compositions of oxide components are determined and raw materials for the synthesis of the glass matrix are selected. The technological parameters of melting (T = 1350 – 1400ºС) and heat treatment with simultaneous formation of products (stage of nucleation T = 600 – 650ºС, τ = 30 – 60 min; stages of formation T = 900ºС, τ ≈ 20 min) are selected. The composition of fluoroapatite glass-ceramic coating for glazing of glass-ceramics and the mode of its firing (T = 800 – 850ºС, τ ≈ 1,0 – 1,5 min) were determined. The serviceability of the developed glass-ceramic samples DL st.glass, which were obtained by the technology of high-temperature pressing, are determined.

The comparative analysis of glass-ceramic prostheses for dentistry allowed to establish that the operational properties of the developed glass-ceramic prostheses according to ISO 6872:2015 are at the level of world analogues. This will allow them to successfully compete in the Ukrainian market with well-known foreign counterparts and help ensure the social priorities of the state in the field of health care.

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заявл. 03.04.2017; опубл. 25.02.2019, Бюл. № 4. – 7 с.
Published
2021-03-17
How to Cite
Savvova, O., Voronov, G., Fesenko, O., Smirnova, Y., & Bairamov, E. (2021, March 17). Innovative directions of development of ceramic materials for dentistry. Ceramics: Science and Life, (1(50), 19-25. https://doi.org/10.26909/csl.1.2021.3