CONSERVATIVE & ENDODONTICS

₹1,000.00

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Microleakage around Glass Ionomer Cement

  • Adheres to tooth structure by forming chemical bond b/w carboxyl gp of cement and Ca ions of tooth.
  • Properties decreasing microleakage :
  • CTE similar
  • Fluoride releasing
  • Renew broken ionic bonds
  • Highly technique sensitive
  • First 30 min crucial to prevent microleakage
  • On exposure to water, the matrix forming ions are easily leached out during the initial set which could interfere at tooth restoration interface.
  • Excessive dehydration /dessication can result in chalky, cracked or crazed surface which if extends to margin result in microleakage.
  • Use of sharp instruments before the material sets,
  • Hampers marginal intergerity.

 

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