Ocena laboratoryjna materiałów używanych do uszczelniania zagłębień anatomicznych w zębach stałych niedojrzałych

Introduction. Pit and fissure sealing is highly efficient in caries prevention. New types of composite materials – self-adhesive and bulk fill materials – are interesting alternatives to standard resin-based sealants. Their specific features may contribute to the clinical success of the sealing procedure. The requirement for a successful procedure is an adequate seal of the material to prevent bacterial microleakage. Aim. The aim of this study is the laboratory evaluation of the degree of filling of fissures by the tested materials and the occurrence of gaps between the materials and enamel. Material and methods. Fissures of 15 permanent third molars were sealed with the following materials: Helioseal F (Ivoclar Vivadent), Vertise Flow (Kerr) and SDR (Dentsply Sirona) with XP Bond (Dentsply Sirona). The specimens were embedded in epoxy resin and cut. Images were taken using a scanning electron microscope. An evaluation of the degree of fissure filling and material adaptation was performed in a graphic software. Statistical analysis was performed. Results. A total of 22 samples were evaluated: 7 Helioseal F, 7 Vertise Flow and 8 SDR. SDR had the highest percentage of fissure filling depth (0.808), followed by Vertise Flow (0.614) and Helioseal F (0.602). The highest percentage of fissure fill area was characterized by SDR at 0.938, followed by Helioseal F at 0.872 and Vertise Flow at 0.799. No statistically significant differences were observed between the results. The percentage of inadequate material adaptation was 0 for SDR, 0.069 for Vertise Flow and 0.149 for Helioseal F. There was a statistically significant difference between Helioseal F and SDR material. Conclusions. The degree of fissure filling by all tested materials is comparable, while the degree of adaptation of the materials to the enamel surface is statistically different when comparing SDR to Helioseal F, in favor of SDR.