Volume 4 Issue 2 (March-April), 2018

Original Articles

Comparison of Retention of Zirconia Coping Luted with Different Cement- An in vitro study
Pranjali Dutt, Pooran Chand, Vidhi Srivastava, Balendra Pratap Singh

Background: The advent of dental implants has revolutionarized the field of dentistry due to success rate with the modality. The present study was conducted to compare different luting agents with zirconia crowns. Materials & Methods: The present study was conducted in the department of Prosthodontics. It comprised of 4 titanium abutments with 32 zirconia copings. Titanium and zirconia abutments were torqued at 35 N/cm onto implant analogs. Samples were divided into 2 groups. Group I consisted of 2 titanium abutments with 16 zirconia copings. Group II had also similar number of abutments and copings and three luting agents were used. The cemented copings were subjected to tensile dislodgement forces. Results: In group A, glass ionomer cement was used as luting agent, in group B, zinc oxide noneugenol was used as luting agent and in group C, resin cement was used as luting agent. The mean tensile force (N/cm) in glass ionomer cement was 96.23, in zinc noneugenol was 18.11 and in resin was 543.17. The difference was significant (P< 0.05). The mean tensile force with zirconia crown was 262.3 N/cm and with titanium crown was 191.5 N/cm. The difference was significant (P< 0.05). Conclusion: Resin cement exhibited higher tensile force than other cements. Zirconia implants abutments found to have high tensile force as compared to titanium implant.
Key words: Resin, Titanium, Zirconia.

 
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