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  • Title: Effects of surface treatment and bonding agents on bond strength of composite resin to porcelain.
    Author: Suliman AH, Swift EJ, Perdigao J.
    Journal: J Prosthet Dent; 1993 Aug; 70(2):118-20. PubMed ID: 8396642.
    Abstract:
    This study evaluated porcelain repair by use of various surface treatments and hydrophilic bonding resins. The surface treatments were air abrasion (sandblasting), roughening with a diamond, etching with 9.6% hydrofluoric acid, and a combination of the latter two methods. A silane coupling agent was applied to all porcelain surfaces, and composite resin was bonded to porcelain with All-Bond 2, Amalgambond, or Clearfil Porcelain bonding agents. Shear bond strengths were determined on a universal testing machine. The most effective surface treatment was the combination of diamond roughening and hydrofluoric acid etching, but it was not significantly better than the other methods. The Clearfil Porcelain Bond system showed a greater repair strength than the other two materials but was statistically different only from Amalgambond resin.
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