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    Effect of Different Desensitizers on Shear Bond Strength of Self-Adhesive Resin Cements to Dentin

    Year: 2022

    Journal: Bioengineering-Basel, Volume 9, AUG

    Authors: Elizalde-Hernandez, Alejandro; Hardan, Louis; Bourgi, Rim; Isolan, Cristina Pereira; Moreira, Andressa Goicochea; Zamarripa-Calderon, J. Eliezer; Piva, Evandro; Cuevas-Suarez, Carlos Enrique; Devoto, Walter; Saad, Ahmed; Proc, Patrycja; Lukomska-Szymanska, Monika

    The sealing and bonding characteristics of luting cements may be affected by the application of desensitizers containing ingredients that induce chemical interaction with dentin organic matrix. This study evaluated the effect of different desensitizers on the immediate and long-term shear bond strength (SBS) of a self-adhesive resin cement (SARC) to dentin. Healthy bovine dentin specimens were used for the study. Gluma (R) Desensitizer, Desensibilize Nano P (R), and Soothe (R) desensitizer were used in study groups, while the control group did not receive any treatment. Next, SARC (RelyXTM U200) in cylindrical mold was applied to the sample surface. All specimens were stored at 37 degrees C for 24 h or six months and tested for SBS. Additionally, water contact angle was measured using an optical tensiometer. Results were analyzed by analysis of variance and Student-t tests (p < 0.05). Application of the different types of desensitizers had no significant influence on immediate or long-term SBS of SARC to dentin (p > 0.05). Differences for water contact angle were not statistically significant among the tested groups (p = 0.450). Within the limitations of the present study, it can be concluded that the application of the different types of desensitizers had no significant influence on the SBS of a SARC to dentin.
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