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ORIGINAL ARTICLE
Year : 2018  |  Volume : 21  |  Issue : 4  |  Page : 369-372

Comparison of bond strength of a composite resin with two different adhesive systems and a resin modified glass ionomer to calcium enriched mixture


1 Dental Student, Student Research Committee, Babol University of Medical Sciences, Babol, Iran
2 Dental Materials Research Center, Dental School, Babol University of Medical Sciences, Babol, Iran
3 Department of Social Medicine, School of Medicine, Babol University of Medical Sciences, Babol, Iran

Correspondence Address:
Dr. Behnaz Esmaeili
Dental Materials Research Center, Dental School, Babol University of medical sciences, Babol
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JCD.JCD_146_18

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Context: It is necessary to have a proper bond between pulp-capping agent and composite materials to maintain effective coronal seal. Aims: This study aims to compare the shear bond strength of a composite resin with two different adhesive systems and a resin-modified glass ionomer (RMGI) to calcium-enriched mixture (CEM). Methods: In this study, 30 acrylic blocks (with a central hole 4 mm diameter and 2 mm height) were prepared and filled with CEM. The blocks were divided into three groups: single bond2 (SB) with Filtek Z250, single bond universal (SBU) with Filtek Z250, and RMGI. The restorative materials were placed on the CEM, and shear bond strength was measured. Data were analyzed using one-way ANOVA and games Howell tests. P < 0.05 was considered statistically significant. Result: Bond strength of both composite groups to CEM showed significantly higher values than RMGI-CEM group (both P < 0.001). The type of the adhesive system( total etch or universal) had no significant effect on the bond strength of composite to CEM (P > 0.05). All the failures in composite groups were as cohesive in CEM and in RMGI group was as adhesive. Conclusions: Shear bond strength of composite resin to CEM cement was higher than RMGI irrespective of the type of the adhesive system. The universal bonding system is recommended for bonding of composite to CEM for ease of use.


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