Effects of sealant, viscosity, and bonding agents on microleakage of fissure sealants: An in vitro study

Mehrabkhani, M. and Mazhari, F. and Sadeghi, S. and Ebrahimi, M. (2015) Effects of sealant, viscosity, and bonding agents on microleakage of fissure sealants: An in vitro study. European Journal of Dentistry, 9 (4). pp. 558-563.

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Objective: The aim of this study was to evaluate the effects of enamel or dentin bonding agent (DBA) and sealant viscosity on sealant microleakage. Materials and Methods: Sixty extracted human premolars were randomly divided into two equal groups (based on sealant viscosity) and each group was divided into three subgroups of 10 teeth. Group 1 (low viscosity sealant, Seal-Rite, Pulpdent, USA with 7.7 filler): Prophylaxis, enameloplasty, etching of occlusal surfaces with 38 of phosphoric acid gel, rinsing and drying, followed by (1) enamel bonding agent (EBA) (Margin Bond, Coltène/Whaledent AG) or (2) DBA (Excite, Ivoclar Vivadent AG, Liechtenstein) or (3) no bonding (NB) prior to sealant application. In Group 2, similar procedures were performed except for applying a high viscosity sealant (Seal-Rite, Pulpdent, The USA with 34.4 filler). Specimens were thermocycled and then immersed in a 0.5 basic fuchsine solution for 24 h next, buccolingual slices of samples were scored under a stereomicroscope. The Kruskal-Wallis and Mann-Whitney U-tests were used for data analysis. Results: There was no significant difference between DBA, EBA, and NB subgroups in the microleakage scores in both groups. Low viscosity sealant had a lower microleakage than the high viscosity sealant in both DBA (P = 0.002) and NB (P = 0.041) subgroups. Conclusion: The results indicated that the use of low viscosity sealant reduced the microleakage of pit and fissure sealants. However, the use of a bonding agent before sealant placement didn't affect the microleakage. © 2015 European Journal of Dentistry.

Item Type: Article
Additional Information: Cited By :10 Export Date: 16 February 2020 Correspondence Address: Mazhari, F.; Department of Pediatric Dentistry, Dental Material Research Center, Mashhad University of Medical Sciences, Faculty of DentistryIran; email: mazharif@mums.ac.ir
Uncontrolled Keywords: Dentin bonding agent Enamel bonding agent Microleakage Sealant viscosity
Subjects: WU Dentistry. Oral surgery
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib5 lib5
Date Deposited: 05 May 2020 06:18
Last Modified: 05 May 2020 06:18
URI: http://eprints.mums.ac.ir/id/eprint/18963

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