Infuence of intracoronal bleaching agents on the bond strength of MTA cements to composite resin and their surface morphology
[ X ]
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The objective of the present in vitro study was to evaluate micro-tensile bond strength (µSBS) of MTA cements to composite resin using a universal adhesive after internal bleaching procedure, and to examine surface characteristics of MTA
cements exposed to bleaching agents. MTA specimens were divided into three subgroups according to the bleaching agent
used which were, 37% carbamide peroxide (CP), 35% hydrogen peroxide (HP), and no exposure as a control group (n=12).
After exposure to bleaching agent, composite resins were applied to MTA surfaces using a universal adhesive in self-etch
mode. The specimens were exposed to a shear force until failure to evaluate bond strength. MTA surfaces were investigated
using scanning electron microscopy (SEM) to observe the efects of the bleaching agents. Diferences between groups were
analyzed using two-way ANOVA test and intergroup comparisons were assessed with Tukey test (p<0.05). Although there
was a slight diference in bond strength between bleaching agents (CP and HP), no signifcant diference was found, irrespective of MTA cement. After the HP application, the bond strength values decreased approximately by half compared with the
controls. SEM results demonstrated distinct morphological diferences between the intact MTA surface (control) and treated
MTA surface. Distinct micro-cracks, surface irregularities, and capillary voids formed due to the superfcial dissolution
caused by peroxides. Exposure to the intra-coronal bleaching agents had a negative infuence on the surface morphology of
MTA cements and their bond strength to composite resin.
Açıklama
Anahtar Kelimeler
Adhesion, Bond Strength, Intra-Orifce Barrier, Intra-Coronal Bleaching Agents, Mineral Trioxide Aggregate
Kaynak
Odontology
WoS Q Değeri
Q2
Scopus Q Değeri
N/A
Cilt
Sayı
Künye
Sismanoglu, S., Yildirim-Bilmez, Z., Gurcan, A. T., Gumustas, B., Taysi, M., & Berkman, M. (2021). Influence of intracoronal bleaching agents on the bond strength of MTA cements to composite resin and their surface morphology. Odontology, 1-9.
