Journal of Conservative Dentistry
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Year : 2000  |  Volume : 3  |  Issue : 1  |  Page : 17-26

Retention And Microleakage Of Bonded Amalgam Restorations – An In-Vitro Study



Correspondence Address:
M. S Nivedhitha


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An in-vitro study was undertaken to evaluate the effect of Panavia-21 and ProBOND In retention and microleakage of amalgam restorations. 40 freshly extracted molar teeth were subjected for retention test while another 40 teeth were selected to evaluate microleakage. They were divided into 4 groups of 10 each. After laboratory procedures, the samples submitted for retention test were examined under SEM. Results were statistically analysed. To assess microleakage the samples were submitted to thermocycling, later the teeth were immersed in 5% methylene blue dye and the extent of dye penetration was evaluated by Stereomicroscope. The Statistical analysis of the results of retention test showed that Group IV required highest force to dislodge amalgam restorations when compared to other 3 groups. Whereas the statistical analysis of the results of the microleakage showed that Group IV exhibited less microleakage when compared to other groups. The study concludes that “ Bonded Amalgam Restorations” are promising for use in restoring posterior teeth with extensive caries.


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