Publication: Effects of coloring procedures on shear bond strength between resin cement and colored zirconia.
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TUNCEL, İLKİN
Turp, IŞIL
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Abstract
Zirconia has a high fracture strength of more than 1000 MPa, fracture
resistance of higher than 2000 N, and fracture toughness of 9–10 MN/m3/2
(1). In addition to these favorable mechanical properties, it is chemically
durable (2), biocompatible (3, 4), and displays esthetic advantages (5) over
metal-ceramic restorations. However, recent clinical trials have shown that
zirconia-based ceramic restorations’ decementation is a common failure.
Restoration’s cementation corresponds to restoration durability, and cementation is also an important factor for marginal fit and fracture strength
of restorations (6, 7). There are various cementation options for zirconia
framework restorations. Cementation of zirconia restorations with traditional luting cements (such as glass ionomer or zinc phosphate cements)
provides adequate clinical fixation, but adhesive cementation may be preferred for better retention and marginal adaptation (7-10). In addition, resin
cement shows higher compressive and tensile strength than other luting
agents, and allows color selection for more esthetic restorations (11, 12).
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TUNCEL İ., Turp I., -Effects of coloring procedures on shear bond strength between resin cement and colored zirconia.-, European oral research, cilt.52, ss.122-126, 2018