One of the substantial determinants of restorations survival is their surface adaptation to cavity walls and floor. The objective of this study is to appraise the coalition of flowable composite enhanced with antimicrobial MgO nanoparticles under OCT, and to compare it with non filled flowable composite restorations adopting cross-polarization optical coherence tomography (CP-OCT).
Methods: Thirty sound central incisor teeth were used in which class five was prepared and randomly distributed into three groups: G-1control, G-3, and G-5 a mixture of 0.3% and 0.5% Magnesium oxide nanoparticles and flowable composite respectedly.
Clear l SE Bond 2 adhesive was used for bonding all the groups (SE; Kuraray Noritake Dental Inc, Japan). Microgaps adaptation of composite were determined by CP-OCT.
Reults: Data were analyzed by Mann–Whitney showed no significant difference in flowable composite adaptation between the three groups (p < 0.05) CP-OCT is a safe and predictable method that gives a perception of composite performance .
There was no statistical difference in the adaptation of Flowable composite with and without the addition of MgO nanoparticles.
Conclusion: It is beneficial to incorporate the antimicrobial MgO nanoparticles to flowable composite in order to benefit of its antimicrobial properties, as it does not affect the internal adaptation of the composite restoration.
Impact Factor
2022: 6.012
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