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Comparative Evaluation of Push-Out Bond Strength at Various Levels for Two Different Size Radicular Posts Cemented
Neha Vijaykumar1, Syeda Amtul Haseeb2, Vinaya Kodige Chandrashekar Rao2
1Department of Prosthodontics, Subbaiah Institute of Dental Sciences, Shimoga, Karnataka, India.
Objective:
To evaluate the push-out bond strength at various levels for two different size fiber-reinforced composite resin posts cemented with two resin cements.
Materials And Methods:
Forty-eight mandibular premolars were divided into four groups based on post size and cement type. Group A used size #01 posts with Allcem core resin cement, Group B used size #01 posts with Maxcem elite resin cement, Group C used size #03 posts with Allcem core resin cement, and Group D used size #03 posts with Maxcem elite resin cement. Samples were sectioned into cervical, middle, and apical levels and subjected to push-out bond strength testing using a universal testing machine. Data were analyzed using ANOVA and t-tests.
Results:
Group B exhibited the highest mean bond strength (2.84 MPa), followed by Group D (2.68 MPa), Group C (2.57 MPa), and Group A (2.19 MPa). Significant differences were observed among levels and groups.
Conclusion:
Maxcem elite resin cement provided superior bond strength compared to Allcem core. Larger posts exhibited higher bond strength, although not always statistically significant.
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