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 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 An In vitro Comparative Evaluation of Microleakage of ACP Containing Pit and Fissure Sealant and Moisture Tolerant Pit and Fissure Sealant

2021 ◽  
pp. 274-280
Author(s):  
Rachna Mulani ◽  
Aditi Mathur
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
In Vivo Studies ◽  
Blue Dye ◽  
Fissure Sealants ◽  
Fissure Sealant ◽  
Pit And Fissure Sealants ◽  
Occlusal Surfaces ◽  
Pit And Fissure Sealant

Background: Pits and fissure sealants are widely used to prevent caries in children. Microleakage is one of the most crucial factors resulting in sealant compromise. Factors pertaining to microleakage like, pre-treatment of occlusal surfaces, moisture control, bonding systems, and flowability of the sealant, will determine the longevity of the treatment. In vitro microleakage studies are useful in predicting the marginal sealing ability of pit and fissure sealants. Aim: This in vitro study was undertaken to evaluate and compare the microleakage of ACP (Aegis®) containing pit and fissure sealant and moisture tolerant pit and fissure sealant (EmbraceTM WetbondTM). Study Design: In vitro study. Place and Duration of Study: Department of Pedodontics and Preventive Dentistry, Dr. D.Y. Patil Dental College and Hospital, Pune. between June 2020 and February 2021. Methodology: 26 permanent non- carious premolars extracted for orthodontic treatment were used. The sealants used for the analysis of microleakage were Aegis® and EmbraceTM WetbondTM pit and fissure sealants. The premolars were divided into two groups of 13 each. After sealant application, they were immersed in methylene blue dye. The teeth were subjected to thermocycling for 24 hours, after which The teeth were sectioned buccolingually and dye penetration was studied under a stereomicroscope (magnification 10X). Results: Both the groups were studied and statistically evaluated using Mann- Whitney U test. Aegis® showed higher microleakage in (46.2%) than Embrace (38%), though the results were not statistically significant. Conclusion: Both the materials showed microleakage, more In-vivo studies with longer follow- up periods are needed to evaluate and compare the clinical success of these pit & fissure sealants.

scholarly journals A comparison of microleakage in self-etch fissure sealants and conventional fissure sealants with total-etch or self-etch adhesive systems

2018 ◽  
Vol 12 (02) ◽  
pp. 242-246 ◽  
Author(s):  
Azam Nahvi ◽  
Alireza Razavian ◽  
Hoorieh Abedi ◽  
Jamshid Yazdani Charati
Keyword(s):  
In Vitro Study ◽  
Conventional Technique ◽  
Single Bond ◽  
Adhesive Systems ◽  
Fissure Sealants ◽  
Fissure Sealant ◽  
Acid Etch ◽  
Self Etch ◽  
Group 1

ABSTRACT Objective: The present study was conducted to compare microleakage in self-etching fissure sealants and conventional fissure sealants with total-etch or self-etch adhesive systems. Settings and Design: This experimental in vitro study was conducted on 60 healthy third molars extracted from humans. The first group received Acid etch + Clinpro sealant, the second group received Acid etch + Single bond 2 + Clinpro sealant, the third group received Single bond universal (self-etching bonding) + Clinpro sealant, and the fourth group received prevent seal self-etching sealant. Materials and Methods: An incision was made on the teeth after they were immersed in methylene blue 5%. The samples were then examined under a stereomicroscope and the dye penetration rate was measured based on the Williams and Winter criteria. Statistical Analysis Used: The Kruskal–Wallis and Mann–Whitney tests were used for data analysis in SPSS-18 (P < 0.05). Results: Group 1 which was treated with the conventional technique (acid + fissure sealant) had the highest rate of microleakage compared to Groups 2 and 3 (P < 0.001). Conclusion: The results showed that the use of bonding results in a significant reduction in the microleakage of fissure sealants. The microleakage caused when using self-etch fissure sealant was not different from that caused by the use of the conventional method.

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