SEM Evaluation of Depth of Penetration and Lateral Wall Adaptations of Different Resin Based Pit and Fissure Sealants

Abstract

Sazgar M. Sabir, Dara H. Rasheed

Aim: Tend to evaluate Depth of Penetration and Lateral Wall Adaptations of three types of resin based pit and fissure sealants.
Methods: The present in-vitro study was done on 30 extracted sound human upper permanent first premolars, to evaluate the lateral adaptation and assess the penetration ability of three types of fissure sealants Helioseal Clear® (HC), Helioseal F® (HF) (Ivoclar Vivadent AG, Schaan, Liechtenstein) and experimental material (EM) (Helioseal Clear with addition of 10% of silanized dentin chips) on molars, divided into 3 equal groups of 10 each, with further sectioning of each sample into 3 parts (1 mesial, 1 middle and 1 distal sections) giving 30 samples per group, following embedding of teeth in auto-polymerizing acrylic resin, evaluation of the sections was done for depth of penetration and lateral wall adaptation by Scanning Electron Microscope (SEM).
Results: Showed that the EM sealant had more penetration depth, with a statistically significant increase compared to HC and HF, while according to the lateral adaptation, EM slightly higher than HF and HC, followed by HC and HF, respectively, with no statistically significant difference.
Conclusion: Within the limits of this study, the addition of dentin chips to fissure sealants increased the penetration depth, which made them more resistant to wear, and no statistically difference in related to the wall adaptation.