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  • Title: Bond strength and durability of porcelain bonding systems.
    Author: Kato H, Matsumura H, Tanaka T, Atsuta M.
    Journal: J Prosthet Dent; 1996 Feb; 75(2):163-8. PubMed ID: 8667275.
    Abstract:
    Because the most effective bonding system for ceramic restorations has not been documented, this study examined bond strength and durability of bonding systems joined to a feldspathic porcelain. Disks of porcelain specimens were fired on refractory investment materials and were air-abraded with alumina. The disks were then bonded with six combinations of five silane primers and six luting agents. Durability of the bond was evaluated by means of a thermocycling machine. Shear bond strengths were determined before and after thermocycling. The results showed that reduction in bond strengths after thermocycling was remarkable for five systems (p < 0.05). However, three systems exhibited shear bond strength greater than 20 MPa after 20,000 cycles.
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