Evaluation of Adhesive Bonding of Lithium Disilicate Ceramic Material with Duel Cured Resin Luting Agents

Retrospective evaluation of extended heat‐pressed ceramic veneers after a mean observational period of 7 years

“…The effect of decreased fracture strength of veneers bonded primarily to dentin could be documented by in vitro studies . To further improve the survival rates of extended ceramic veneers, the usage of all‐ceramic materials with improved mechanical properties (eg, lithium‐disilicate ceramic or zirconia‐reinforced lithium silicate (ZLS)‐ceramics) may be beneficial . However, to date, clinical data on extended ceramic veneers fabricated from these types of materials are still limited …”

“…When compared with a prospective trial, less strict inclusion and exclusion criteria were applied . The usage of two different composite cements for luting the veneers without a randomization protocol could also have been a source of bias for the outcomes of this study …”

“…26,27 To further improve the survival rates of extended ceramic veneers, the usage of all-ceramic materials with improved mechanical properties (eg, lithium-disilicate ceramic or zirconia-reinforced lithium silicate (ZLS)-ceramics) may be beneficial. [28][29][30] However, to date, clinical data on extended ceramic veneers fabricated from these types of materials are still limited. 2 Another possibility to decrease the fracture rate could be to improve bonding protocols.…”

“…Based on the findings of in vitro investigations, the fracture strength of a veneer restoration is influenced by the type of luting agent and the bonding technique. 29,30 In particular, the application of immediate dentin sealing improves adhesion when ceramic veneers are bonded to a large dentin substrate, thereby increasing the fracture strength of veneer restorations. 27 Nevertheless, clinical data on extended veneers with improved bonding protocols are still missing.…”

“…24 The usage of two different composite cements for luting the veneers without a randomization protocol could also have been a source of bias for the outcomes of this study. 26,29,30 Furthermore, all of the restorations were placed by a single operator, which limits potential generalization of the results, as operatorrelated effects on clinical performance could not be evaluated. Considering these limitations, the determined survival and success rates for extended ceramic veneers indicate that they are a reasonable alternative to full crown restorations, even in the anterior mandibular region.…”