Open AccessInfluence of thermal vibration impact on the strength characteristics of composite materials used in dentistry
Author(s) -
А. А. Гущин,
А А Адамчик,
С.П. Рубникович,
E. S. Zaporozhskaya-Abramova,
В А Иващенко,
Zh. V. Solovyeva,
В. В. Таиров,
С. И. Рисованный,
Yu. L. Denisova
Publication year - 2022
Publication title -
vescì nacyânalʹnaj akadèmìì navuk belarusì. seryâ medycynskìh navuk
Language(s) - English
Resource type - Journals
eISSN - 2524-2350
pISSN - 1814-6023
DOI - 10.29235/1814-6023-2022-19-1-103-111
Subject(s) - flexural strength , materials science , composite material , composite number , vickers hardness test , bond strength , restorative dentistry , hardness , bending , indentation hardness , polymerization , vibration , izod impact strength test , dentistry , ultimate tensile strength , polymer , adhesive , medicine , microstructure , layer (electronics) , physics , quantum mechanics
The article discusses the evaluation of the effectiveness of the influence of thermal vibration effects on the bending strength and surface hardness of composite filling materials. The study was conducted on the basis of the Department of Therapeutic Dentistry of the Kuban State Medical University, as well as at the Krasnodar Instrument Plant “Cascade”. The samples under study were made according to the group affiliation from three different composite materials: Estelite Sigma Quick, Filtek Bulk Fill Posterior Restorative and DentLight. The bending strength was evaluated on the “MIP-10” testing machine of the company “NPK TECHMASH”. Determination of the surface hardness according to Vickers was carried out on the device PMT-3 of the company “LOMO”. According to laboratory studies, a statistically significant increase in flexural strength and surface hardness according to Vickers was determined for all samples of composite materials subjected to thermal vibration before polymerization. The data obtained indicate an increase in the strength characteristics of composite filling materials as a result of thermal vibration exposure before their polymerization, which increases the service life of composite fillings and reduces the risks of secondary caries formation after filling.