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A Comparison of Various Cementation Methods for the Retention of Prefabricated Posts: An Original Research
Pramod Punchiri Sadan1, Smita Durga Dutta2
1Department of Prosthetic Dental Sciences, Qassim University, Al Mulaydah, Qassim, Saudi Arabia.
Objective:
To evaluate and compare the retention strengths of prefabricated posts cemented using zinc phosphate (ZP), glass ionomer (GIC), and resin cements (RC).
Methodology:
About 60 extracted human mandibular premolars were decoronated to a standardized length and endodontically treated. Post spaces were prepared to a depth of 10 mm, were grouped into 20 each. Prefabricated metal posts were cemented according to the manufacturers' instructions. Tensile forces until post dislodgment were measured after one day.
Results:
Mean retention strengths were: Group A (ZP)-124 N, Group B (GIC)-336.86 N, and Group C (RC)-1262.51 N. RC exhibited significantly higher retention than both GIC and ZP cements, and GIC cement showed significantly higher retention than ZP cement.
Conclusion:
The type of luting cement significantly affects the retention of prefabricated posts. RC demonstrated the highest retention strength, suggesting its superiority for clinical applications requiring enhanced post-retention.
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