Retention Rate and Caries Preventive Effect of Preheated Flowable Resin Composite Used as a Pit and Fissure Sealant

The occlusal fissures will be etched with a 37% phosphoric acid gel for 30 s. After rinsing the enamel with water for 30 s the enamel will be dried for 15 s with compressed air. After completing the fissure preparations a single coat of adhesive (3M ESPE ADPER ,USA) will be applied to the etched surface ,dried under gentle air flow for 2- 3 s and light cured for 20 s using a LED light curing unit with a 1000 mw output .Conventional resin fissure sealant (total etch), (UltraSeal XT®, Ultradent, USA) will be applied to the etched pits and fissures. After removing the rubber dam the occlusion will be checked the sealant will be adjusted with a composite finishing bur and polished with polishing points.

The occlusal fissures will be etched with a 37% phosphoric acid gel for 30 s. After rinsing the enamel with water for 30 s the enamel will be dried for 15 s with compressed air. After completing the fissure preparations a single coat of adhesive (3M ESPE ADPER ,USA) will be applied to the etched surface ,dried under gentle air flow for 2- 3 s and light cured for 20 s using a LED light curing unit with a 1000 mw output .Conventional resin fissure sealant (total etch), (UltraSeal XT®, Ultradent, USA) will be applied to the etched pits and fissures. After removing the rubber dam the occlusion will be checked the sealant will be adjusted with a composite finishing bur and polished with polishing points.