## 4 Discussion
The ability to release fluoride ions for a long time shows a positive effect on the prevention of secondary caries. After the initial so-called burst effect, studies show a slower continuation of the release of fluoride ions from SIC, which they explain by the glass dissolving in an acidified solution or hydrogel matrix [41]. The mentioned course of release of fluoride ions was also observed in this study. According to [PERSON] et al., the slow release of fluoride ions from dental materials in combination with the continuous recharge effect can have a clinical impact by increasing the concentration of fluoride ions in saliva and in adjacent hard dental tissues [36]. With Cention Forte, there was no significant difference in fluoride release between the experimental and control groups except on the sixth day; so, ionizing radiation has no effect on the fluoride release in Cention Forte. According to the available scientific documentation, Cention Forte also shows the ability for the long-term release of fluoride ions (up to 180 days) [42]. The observed effect found in Cention N could be a result of its composition. According to the manufacturer, this material contains 78.4% by weight of the following inorganic fillers: barium aluminum silicate glass, ytterbium trifluoride, Isoffiler (patented filler), calcium barium aluminum fluorosilicate glass, and calcium fluorosilicate (alkaline) glass. In addition, 24.6% of the weight of the material consists of alkaline (calcium fluorosilicate) glass filler, responsible for the release of fluoride, hydroxyl, and calcium ions [43]. According to a study by [PERSON] et al., double-curing Cention N released a larger amount of fluoride ions in deionized water (70.7 \(\mathrm{\SIUnitSymbolMicro}\)\(\mathrm{\SIUnitSymbolMicro  
researched as a whole, without the possibility of the systematic evaluation of individual contributions. Therefore, it is not possible to study in detail the relationship between the composition, structure, and properties, but it is only possible to measure the total integrated material behavior [51]. It is important to consider the concentrations of the bioactive materials evaluated, as well as the environmental factors and experimental conditions used. In addition, only fluoride release was investigated in this work, although other ions, particularly calcium ions, are equally important in the remineralization process. Further research will allow scientists to learn more about the processes underlying the release of fluoride ions from these dental materials, as well as their long-term release patterns and potential benefits, for example, the long-term benefits against carcinogenesis. In addition, investigating different coating processes or modifications to improve fluoride ion release from EQUIA Forte HT and other materials could lead to the development of more effective preventive dental measures. It would also be beneficial to investigate the relationship between the concentrations of fluoride ions delivered and the actual clinical outcomes in caries prevention. Evaluation of the performance of these materials in practical situations and evaluation of their clinical effectiveness over time could provide a more thorough understanding of their usefulness and help clinicians select the best materials for their patients.