Comparative Evaluation Of Marginal Leakage Of Ssc And Zirco-nia Crowns In Primary Teeth

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Dr. Subramanian EMG , Dr. Aravind Kumar S , Dr. Lavanya G

Abstract

Aim: The purpose of this in-vitro study was to compare the degree of Microleakage of Zirconia crowns with Stainless steel crowns in primary molars.
Methods: 40 primary teeth were cemented with either SSCs or Zirconia crowns using Type 1 GIC. The specimens were placed in Dulbecco’s Phosphate Buffered Saline solution at 37 degrees Celsius for 1 day and were then thermocycled between five degrees Celsius and 55 degrees Celsius for 6,000 cycles. The specimens were then stained with 2% basic fuchsin, sectioned, and viewed under microscope. The microleakage was assessed on a four-point scale. Data were statistically analyzed using chi-square test, (P<.05).
Results: Microleakage was noticed in all the specimens irrespective of the crowns used, however the degree or extent of Microle-akage was more with Zirconia crowns and this difference was statistically significant (p=0.008).
Conclusion: Zirconia crowns shows significantly more micro-leakage compared to SSCs in primary molars.

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