Effect of Various Agitation Methods on Adhesive Layer Formation of HEMA-Free Universal Dentin Adhesive
Dental Materials Journal
This study evaluates the effects of various agitation methods on the adhesive layer formation of a new HEMA-free universal dentin adhesive. The µTBS of the universal adhesive, G-Premio BOND in the self-etch mode was evaluated using three agitation methods [passive agitation (PA), active agitation (AA), ultrasonic agitation (UA)], with and without aging treatment. Two-way analysis of variance revealed that aging treatment was not a statistically significant factor. Tukey’s HSD test showed significant differences based on the application method, UA>AA>PA. TEM images of the PA group revealed multiple water blisters in the adhesive layers; AA and UA groups presented significantly less or no blisters within the adhesive layers; thus, AA and UA groups exhibited better bonding performance for the HEMA-free universal adhesive. It is assumed that the entrap ped blisters can be reduced with the active application of dentin adhesive, and thus improving the bonding performance.
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Jang, J.-H., Jeon, B.-K., Mo, S. Y., Park, M., Choi, D., Choi, K.-K., & Kim, D.-S. (2019). Effect of various agitation methods on adhesive layer formation of HEMA-free universal dentin adhesive. Dental Materials Journal, 38(1), 101-106. https://doi.org/10.4012/dmj.2018-031