The Influence of Different Radiopacifying Agents on Hermetical Sealing Ability of Calcium Silicate and Calcium Aluminate Dental Cements

Authors

  • Dejan Ćetković School of Dental Medicine, University of Belgrade, Belgrade, Serbia
  • Đorđe Antonijević School of Dental Medicine, University of Belgrade, Belgrade, Serbia
  • Vukoman Jokanović ALBOS d.o.o. Belgrade, Serbia
  • Xiaojing Huang Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial &Stomatological Key lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
  • Vladimir Biočanin Faculty of Dentistry, University of Business Academy, Pančevo, Serbia
  • Huaxiang Lei Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial &Stomatological Key lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
  • Zorica Vuković Department of Catalysis and Chemical Engineering, Institute of Chemistry, Technology and Metallurgy, Belgrade, Serbia
  • Nemanja Vuković Faculty of Dentistry, University of Business Academy, Pančevo, Serbia
  • Cai Zhiyu Fujian Medical University Union Hospital, Fuzhou, China
  • Aleksandra Dožić School of Dental Medicine, University of Belgrade, Belgrade, Serbia

Abstract

This study presents technological process for obtaining strontium enriched calcium silicate based dental ceramics and testing their microstructural and chemical properties. In brief, the influence of different radiopacifiers on microstructural properties of calcium-silicate (CaSi) and calcium-aluminate (CaAl) dental ceramics was evaluated. For synthesis of CaSi-based ceramics, calcium chloride pentahydrate (CaCl2⋅5H2O) and silica sol obtained by hydrothermal treatment were used. CaSi+barium-sulphate (BaSO4), CaSi + bismuth-oxide (Bi2O3), CaAl + zirconium-dioxide (ZrO2), CaAl + strontium-carbonate (SrCO3), CaAl+strontium-fluoride (SrF2), pure CaSi, pure CaAl and mineral trioxide aggregate (MTA) (control material) were used. The wettability, surface free energy (SFE), microporosity, nano-porosity and micro-gap size between the material and tooth root canal were evaluated. There was no difference in total SFE among tested cements (p<0.05), while CaSi+BaSO4, CaAl + SrCO3 and CaAl + SrF2 experienced superior wetting than other cements (p<0.05). The highest microporosity was observed in CaAl, whilst adding radiopacifiers into it decrease cements microporosity (p<0.05). The lowest nanoporosity was found for CaAl + ZrO2. The gap size was not statistically different among tested ceramics (p>0.05). Altogether, strontium containing radiopacyfiers result in improved microstructural characteristics of dental ceramics

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Published

2024-08-12

Issue

Vol. 56 No. 4 (2024)

Section

Articles