In-Ceram has been used to fabricate fixed partial dentures, but the manufacturer recommends only short-span (three-unit) anterior restorations.
Alumina-reinforced ceramic systems (In-Ceram) significantly improve the light reflection characteristics of crowns when compared to conventional metal-ceramic restorations.
However, opaque aluminum oxide diminishes translucency when compared to leucite-reinforced systems (Optec, IPS-Empress). To improve light transmission and reflection in single anterior crowns where maximum strength is not required, a magnesium aluminous
spinel may be utilized. The transilluminating qualities seem to be similar to those of natural teeth.
Alumina-reinforced ceramic systems (In-Ceram) significantly improve the light reflection characteristics of crowns when compared to conventional metal-ceramic restorations.
However, opaque aluminum oxide diminishes translucency when compared to leucite-reinforced systems (Optec, IPS-Empress). To improve light transmission and reflection in single anterior crowns where maximum strength is not required, a magnesium aluminous
spinel may be utilized. The transilluminating qualities seem to be similar to those of natural teeth.
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