Effect Of Application Dentin Bonding Agent On The Retention Of Cast Metal Crowns Cemented With Glass Ionomer Cement, To Reduce Post-Operative Sensitivity. An In Vitro Study.
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2018, Vol 3, Issue 11
Abstract
Purpose- To study the effect of dentin bonding agent application on the retention of cast metal copings cemented with Glass Ionomer cement and comparing the above with copings only cemented with GIC and to know how much is the difference in retention. Material and methods- Samples consisted of extracted teeth prepared in anatomic form having 5-6 degree of convergence, wax spacer fabricated upon it with special tray for impression making. Metal casting was fabricated consisting of coping and a ring cemented with GIC after applying denting bonding agent on 15 samples and directly without applying bonding agent on 15 samples. They were thermo cycled and pull test was performed with Universal Testing Machine. Result –Mean and standard deviation for tensile bond strength of group A and group B was 1.30, 1.50 and 0.16, 0.13 MPa and t test showed value about 1.37MPa implicating that there were no significant differences between the two groups. Conclusion -Dentin Bonding Agent can be applied to vital tooth preparations to occlude the dentinal tubules and reduce the risk of post cementation sensitivity, provided the taper of the preparation ensures nearly parallel walls and optimum crown height is present to increase the bond strength of GIC in the present of DBA.
Authors and Affiliations
Dr Ajay Singh
Keywords
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