Original Articles
Comparative Evaluation of Tensile Bond Strength Of Two Different Luting Cements (Zinc Phosphate And Zinc Polycarboxylate) Used In Dentistry | |
Dr. Rahul Sharma, Dr. Harshita Wadhwa, Dr.Vijay Kumar Vijayran, Dr. Abhishek Kumar | |
Background: The objective is to compare the tensile bond strength of two different luting cements, specifically Zinc phosphate and Zinc polycarboxylate, utilized in dental applications. Materials & methods: In the present study, one hundred freshly extracted maxillary first premolars were employed. All samples were meticulously cleaned and preserved in sterile saline for future use. Following the completion of cavity preparation, castings made from type IV dental stone were applied to each specimen. Wax patterns were utilized for the casting process. Subsequently, the castings underwent polishing, devesting, and finalization. The specimens were categorized into two research groups: Group A consisted of zinc phosphate, while Group B comprised zinc polycarboxylate. The mean tensile strength was determined using a universal testing machine. The results were analyzed using SPSS software and compiled into a Microsoft Excel spreadsheet. A Student's t-test was conducted to assess the significance of the findings. Results: The specimens classified as Group A and Group B exhibited mean tensile strengths of 4.65 MPa and 3.28 MPa, respectively. Statistical analysis revealed significant differences in the mean tensile strength when comparing Group A to Group B. Conclusion: The findings indicated that the average tensile strength of Zinc phosphate cement significantly exceeds that of Zinc polycarboxylate cement. Key words: Dental cement, Tensile strength |
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