SELF-CURING LUTING COMPOSITES
The characteristics of recently developed universal self-curing luting composites (such as Multilink Automix [Ivoclar Vivadent]) allow for innovative solutions when repairing zirconia-based restorations that present with chipped overlaying porcelain. However, one must keep in mind that this is not an official indication endorsed by the manufacturer. (Multilink Automix is a self-curing luting composite indicated by the manufacturer for the adhesive cementation of indirect restorations composed of metal, all-ceramics, metal-ceramics, and composites. Please note the discussion/disclaimer below.) Aside from providing a strong bond on all surfaces, this category of adhesive cements allows for universal application and uncomplicated use, making the cementation technique easi
LITHIUM DISILICATE
Lithium disilicate, another recently introduced all-ceramic material for restorations, has been gaining in popularity for several reasons.3,4 The controlled size, shape, and density of this material’s crystalline structure contributes to a ceramic that demonstrates greater strength and durability.3,5 Lithium disilicate can be used to fabricate a very strong and durable monolithic restoration.6 These single-material restorations are more resistant to chipping and fracture, since there are no layering porcelains present to separate.7,8 The material’s relatively low refractive index produces optical properties, such as translucency, that produce excellent aesthetics.3,8 Materials like lithium disilicate eliminate the chipping and fracture problems that have plagued patients in the past, even though zirconia-based restorations are still considered aesthetic and effective.
