| ORIGINAL ARTICLE |
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| Year : 2016 | Volume
: 19
| Issue : 2 | Page : 166-170 |
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Shear bond strength evaluation of resin composite bonded to three different liners: TheraCal LC, Biodentine, and resin-modified glass ionomer cement using universal adhesive: An in vitro study
Velagala L Deepa1, Bhargavi Dhamaraju1, Indira Priyadharsini Bollu2, Tandri S Balaji1
1 Department of Conservative Dentistry and Endodontics, Lenora Institute of Dental Sciences, Rajahmundry, Andhra Pradesh, India
2 Department of Conservative Dentistry and Endodontics, St. Joseph Dental College, Andhra Pradesh, India
Correspondence Address:
Dr. Velagala L Deepa
Department of Conservative Dentistry and Endodontics, Lenora Institute of Dental Sciences, Rajanagaram, Rajahmundry, Andhra Pradesh
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0972-0707.178696
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Aims: To compare and evaluate the bonding ability of resin composite (RC) to three different liners: TheraCal LC TM (TLC), a novel resin-modified (RM) calcium silicate cement, Biodentine TM (BD), and resin-modified glass ionomer cement (RMGIC) using an universal silane-containing adhesive and characterizing their failure modes.
Materials and Methods: Thirty extracted intact human molars with occlusal cavity (6-mm diameter and 2-mm height) were mounted in acrylic blocks and divided into three groups of 10 samples each based on the liner used as Group A (TLC), Group B (BD), and Group C (RMGIC). Composite post of 3 mm diameter and 3 mm height was then bonded to each sample using universal adhesive. Shear bond strength (SBS) analysis was performed at a cross-head speed of 1 mm/min.
Statistical Analysis Used: Statistical analysis was performed with one-way analysis of variance (ANOVA) and post hoc test using Statistical Package for the Social Sciences (SPSS) version 20.
Results: No significant difference was observed between group A and group C (P = 0.573) while group B showed the least bond strength values with a highly significant difference (P = 0.000). The modes of failure were predominantly cohesive in Groups A and B (TLC and BD) while RMGIC showed mixed and adhesive failures.
Conclusions: Hence, this present study concludes that the bond strength of composite resin to TLC and RMGIC was similar and significantly higher than that of BD following application of universal adhesive. |
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