Adhesion between lithium disilicate and covering porcelain: The role of the glaze interlayer in theprevention of delamination failures
Adhesion between lithium disilicate and covering porcelain: The role of the glaze interlayer in theprevention of delamination failures
DOI:
https://doi.org/10.51473/rcmos.v1i1.2026.2244Keywords:
lithium disilicate, IPS e.max Ceram, delaminationAbstract
Delamination of veneering porcelain over lithium disilicate frameworks represents one ofthe most frequent technical failures in bilayered ceramic restorations. Although the IPS e.max system exhibits high survival rates in long-term clinical follow-ups, the interface between the disilicate substrate and the layering ceramic remains a vulnerable point when interlayer adhesion protocols are not rigorously adhered to. This article analyzes the adhesion mechanisms between lithium disilicate and IPS e.max Ceram veneering porcelains, discusses factors contributing to delamination failure, and presents the intermediate glaze-layer protocol as a preventive approach. The analysis is based on a narrative literature review and on the authors' laboratory experience in the systematic application of this technique over more than two decades of work with dental ceramics.
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Copyright (c) 2026 Ivan Pereira dos Santos, Bruno Vieira Lima Lucena (Autor)
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