The Effect of a New Self-etching Adhesive on Shear Bond Strengths of Fissure Sealants

Material and Methods: Newly extracted 56 non-carious first permanent teeth for orthodontic reasons were used and embedded in Teflon mold (3 mm height, 3 mm internal diameter). Mesial surfaces were expose to a flattened area of enamel and then dried and washed. Eight groups were formed and each one consisted of 7 specimens. The specimens were stored in 37O C distilled water for 24 hours. Then specimens were tested in a shear mode (Instron) at a crosshead speed of 0.5mm/minute. The mean and standard deviation were subjected to an ANOVA.

Results: The bond strengths of Dyract Seal using Promt-L-Pop were 20.61 MPa, Concise (23.42 MPa), Visio-Seal (2.94 MPa) and Helioseal (11.83 MPa). These values were higher and statistically differences (p < 0.001) in Dyract Seal (10.18 MPa) and Concise (9.17 MPa) materials when provided adhesive system used.

Conclusion: The bonding strengths of Promt-L-Pop in conjunction with Dyract Seal and Concise fissure sealant materials exceeded and better than those of the provided adhesive system (ortho-phosphoric acid).