Effect of Dimethyl Sulfoxide as Dentin Surface Pretreatment on Microtensile Bond Strength of Self-Adhesive Versus Conventional Flowable Composite | ||||
| Egyptian Dental Journal | ||||
| Volume 70, Issue 4 - Serial Number 5, October 2024, Page 3917-3926 PDF (350.31 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2024.303955.3114 | ||||
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| Authors | ||||
Mohamed Nagah Elkhaiat   1; Naglaa R Elkholany 2; Abeer Elembaby 3
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| 1MSc Student, Conservative Department , Faculty of Dentistry, Mansoura University | ||||
| 2Assistant Professor, Conservative Dentistry Department, Faculty of Dentistry, Mansoura University | ||||
| 3Professor, Conservative Department, Faculty of Dentistry, Mansoura University | ||||
| Abstract | ||||
| Abstract Objective: Evaluation of the microtensile bond strength of self-adhesive flowable composite in comparison with conventional flowable composite/self-etch adhesive system with and without dimethyl sulfoxide surface pretreatment. Methods: Based on the type of composite, 60 recently extracted, intact human permanent molars were randomly divided into two main groups, self-adhesive flowable composite (SAFC) (n = 30) was used in the first group, and conventional flowable composite (CFC) (n = 30) was employed in the second. Afterwards, two subgroups were created for each group according to the surface pretreatment (n = 15). A test of microtensile bond strength (µTBS) was conducted on a sample of 15 specimens. Using a stereomicroscope, the mode of failure was examined. The multiple comparison post hoc test was utilized for statistical analysis of the μTBS data. Results: The multiple comparison test showed that the mictotensile bond strength (μTBS) of self-adhesive flowable composite (SAFC) Fusio Liquid Dentine with dimethyl sulfoxide (DMSO) as surface pretreatment was significantly greater than that of any group (p > 0.05). A comparison test showed that the self-adhesive flowable composite with and without dimethyl sulfoxide (DMSO) surface pretreatment differed significantly upon examination of μTBS (p < 0.05). But when comparing conventional flowable composite with and without dimethyl sulfoxide (DMSO) surface pretreatment, there was no significant difference in μTBS (p > 0.05). Conclusion: The application of dimethyl sulfoxide (DMSO) as a surface pretreatment enhances Fusio Liquid Dentin self-adhesive flowable composite microtensile bond strength to dentin, but it barely affects the Flow-It conventional flowable composite strength. | ||||
| Keywords | ||||
| self-adhesive composite; DMSO; dentin; bond strength; solvent-free adhesive | ||||
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