scholarly journals Preliminary In Vitro Study of Fluoride Release from Selected Ormocer Materials

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2244
Author(s):  
Piotr Kosior ◽  
Maciej Dobrzynski ◽  
Aneta Zakrzewska ◽  
Lukasz Grosman ◽  
Mariusz Korczynski ◽  
...  
Keyword(s):  
Saline Solution ◽  
In Vitro Study ◽  
Deionized Water ◽  
Vitro Study ◽  
Fluoride Release ◽  
Term Study ◽  
Fluoride Ions ◽  
Cumulative Release

The purpose of the in vitro study presented in this paper was to determine the long-term release of fluoride ions from selected ormocer materials (Admira (A), Admira Flow (AF), Admira Seal (AS)). The release of fluoride ions from these materials into a saline solution (0.9% NaCl) and deionized water was tested for 14 weeks. In a long-term study the measurements were taken after 1 and 3 h, then 1, 2, and 3 days and then at weekly intervals for 14 weeks. In a short-term study the measurements were made after 3, 24, 48, 72, 69, 168 h, i.e., within 7 days. All materials used in the test showed a constant level of fluoride release. The highest level of cumulative release of fluoride ions into deionized water was found in the AS material (23.95 ± 4.30 μg/mm2), slightly lower in the A material (23.26 ± 4.16 μg/mm2) and the lowest in the AF material (16.79 ± 2.26 μg/mm2). The highest level of cumulative release into saline solution was found in AF (8.08 ± 1.30 μg/mm2), slightly lower in AS (7.36 ± 0.30 μg/mm2) and the lowest in A (6.73 ± 1.10 μg /mm2). After 1 h of immersion of the samples in the saline solution, the highest level of fluoride was released by AF (0.57 ± 0.06 μg/mm2) followed by A (0.20 ± 0.03 μg/mm2) and AS (0.19 ± 0.02 µg/mm2). Moreover, in the 14-week study, the total amount of fluoride release into the saline, which imitates the environment of the oral cavity, was observed as the highest in the AF sample.

scholarly journals Assessment of Microstructure and Release of Fluoride Ions from Selected Fissure Sealants: An In Vitro Study

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4936
Author(s):  
Katarzyna Fita ◽  
Maciej Dobrzyński ◽  
Marta Ziętek ◽  
Dorota Diakowska ◽  
Adam Watras ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Deionized Water ◽  
Vitro Study ◽  
Tooth Decay ◽  
Fluoride Release ◽  
Fissure Sealants ◽  
Fluoride Ions ◽  
Fissure Sealant

The aim of this study was to compare fluoride release from four selected fissure sealants: fissure sealant manufactured by Arkona, Helioseal F, Helioseal F Plus, and Conseal. Tested parameters included emission of fluoride ions into saline (0.9% NaCl) and deionized water over a period of 2 weeks. Values were recorded after 1, 3, 24, 48, 72, and 96 h, and then after 1 and 2 weeks. All sealants were characterized by a constant fluoride release level. The highest fluoride release level was noted for Conseal (0.0169 ppm/mg), while the lowest was noted for fissure sealant manufactured by Arkona (0.063 ppm/mg). Fissure sealants, which contain fluoride, release it not only during polymerization, but also for several days after application. The use of fissure sealants whose composition includes fluoride is an effective method of preventing tooth decay.

scholarly journals In Vitro Studies concerning Selected Properties of a Composite Material Blended with Nanofluoroapatite Crystals

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7295
Author(s):  
Marta Zietek ◽  
Maciej Dobrzynski ◽  
Katarzyna Fita ◽  
Dorota Diakowska ◽  
Adam Watras ◽  
...  
Keyword(s):  
Composite Material ◽  
Saline Solution ◽  
Deionized Water ◽  
Fluoride Ion ◽  
Fluoride Release ◽  
Ion Release ◽  
Fluoride Ions ◽  
Long Time ◽  
Ion Emission

The aim of the paper was to determine the potential for fluorine release from an original composite material blended with nanofluoroapatite (FAp). The level of fluoride ion emission into deionized water and saline was studied over a period of 12 weeks. Values were recorded after 1, 3, 24, 48, 72, and 96 h and then weekly for a period of 12 weeks. There were statistically significant differences in the periods of fluoride ion release from 5%FAp and 2%FAp materials into saline solution as well as into deionized water. The highest fluorine release from 5%FAp + polymer was observed in the 10th and 11th week of incubation (for saline solution) and in the 9th, 10th, and 11th week (for deionized water). The highest fluorine release from 2%FAp + polymer was observed in the 9th, 11th, and 12th week of incubation for both environments. Total fluoride ion release from 5%FAp + polymer and mean fluoride release levels were similar in 5%FAp and 2%FAp in both environments. Both tested materials (5%FAp and 2%FAp) show the ability to release fluoride ions over a long time in the experimental environment.

Effects of Cr(VI) long-term and low-dose action on mammalian antioxidant enzymes (an in vitro study)

2004 ◽  
Vol 98 (3) ◽  
pp. 490-496 ◽  
Author(s):  
Nino Asatiani ◽  
Nelly Sapojnikova ◽  
Marina Abuladze ◽  
Tamar Kartvelishvili ◽  
Nina Kulikova ◽  
...  
Keyword(s):  
Antioxidant Enzymes ◽  
Low Dose ◽  
In Vitro Study ◽  
Vitro Study

Marginal, Internal Fit and Microleakage of Zirconia Infrastructures: An In-Vitro Study

2011 ◽  
Vol 36 (1) ◽  
pp. 72-79 ◽  
Author(s):  
L. Korkut ◽  
H. S. Cotert ◽  
H. Kurtulmus
Keyword(s):  
Clinical Relevance ◽  
In Vitro Study ◽  
Manufacturing Technology ◽  
Vitro Study ◽  
Internal Fit ◽  
Fitting Accuracy

Clinical Relevance Fitting accuracy and microleakage dominate prognostic covariates for the long-term durability of crown restorations. The fitting accuracy and microleakage potential of zirconia infrastructures might be influenced by manufacturing technology.

scholarly journals Long-term antibacterial properties of a nanostructured titanium alloy surface: An in vitro study

2022 ◽  
Vol 13 ◽  
pp. 100176
Author(s):  
Richard Bright ◽  
Daniel Fernandes ◽  
Jonathan Wood ◽  
Dennis Palms ◽  
Anouck Burzava ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Antibacterial Properties ◽  
In Vitro Study ◽  
Vitro Study ◽  
Alloy Surface ◽  
Nanostructured Titanium
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