Silver nanoparticles incorporated hydrophilic pit and fissure sealant- its preparation, characterization and assessment of shear bond strength
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Keywords
Hydrophilic sealant, pit and fissure sealant, Silver nanoparticles fissure sealant, Silver nanoparticles hydrophilic sealant
Abstract
Background: Occlusal fissure dental caries are more common in children due its complex morphology resisting the biofilm clearance by routine tooth brushing. Pit and fissure sealants are utilized for the sealing function of deep fissures making its morphology shallow that can reduce the risk of caries development. Ultraseal is the hydrophilic pit and fissure sealant that was developed to overcome the technical difficulties of salivary moisture contamination during sealant application procedure.
Aim and Objectives: The present study was done to evaluate the newly synthesized, silver nanoparticles incorporated hydrophilic pit and fissure sealant in terms of its shear bond strength when compared to the conventional hydrophilic Ultraseal XT Hydro sealant.
Materials and Methods: Green synthesis of Ag nano particles were prepared from the beetroot followed by the Scanned electron microscope analysis, EDAX analysis and FTIR analysis for the characterization of extracted silver nanoparticles. Twenty premolars extracted for the orthodontic purpose were randomly allocated equally (n = 10) into two groups with two different sealants to evaluate shear bond strength at sealant space. Group 1 (n=10) had ultraseal XT hydro and Group 2 with Ag nanoparticles incorporated ultraseal XT hydro. The shear bond strength was evaluated with the INSTRON Universal testing machine. The values obtained were comparatively analysed with independent t test.
Results: Ag nanoparticles incorporated hydrophilic sealant recorded the highest shear bond strength with mean value 175 MPa and the difference was statistically significant (p value = 0.000) with Ultraseal sealant which has mean value of 165 MPa.
Conclusions: Ag nanoparticles incorporated hydrophilic sealant recorded the highest shear bond strength and the difference was statistically significant with Ultraseal sealant.
References
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