Abstract
AIM: The study aimed to evaluate marginal and internal adaptation of endocrowns fabricated from Nano-ceramic Hybrid and Lithium disilicate ceramic materials.
MATERIALS AND METHODS: A total of 22 endocrowns were fabricated for restoring endodontically treated posterior teeth. The patients were divided into two equal groups according to the type of ceramic material used: Lithium disilicate IPS e.max CAD endocrown (control group) and Grandio nano-ceramic hybrid endocrown (intervention group). Before cementation, marginal and internal adaptation of both groups was measured by using the silicon replica technique and a digital microscope. Statistical analysis was performed by using an independent t-test, while comparison between different surfaces was performed by using One Way ANOVA test followed by Tukey's post hoc test for multiple comparisons.
RESULTS: Marginal and internal gap results showed that the Grandio nano-ceramic hybrid group was statistically significantly higher than the lithium disilicate IPS e.max CAD group with p-value, p = 0.0001, p = 0.0002, respectively.
CONCLUSIONS: Marginal adaptation of lithium disilicate IPS e.max CAD restorations is considered clinically acceptable, whereas that of Grandio nanoceramic hybrid exceeds the clinically acceptable limit. Both lithium disilicate IPS e.max CAD and Grandio nanoceramic hybrid restorations scored an acceptable internal adaptation value.
CLINICAL SIGNIFICANCE: Upon consideration of restoring non-vital posterior teeth with endocrowns, lithium disilicate IPS e.max CAD is the material of choice, while Grandio nano ceramic hybrid is less recommended. How to cite this article: Salah El-Din M, Adel S, Naguib A, et al. Evaluation of Marginal and Internal Adaptation of Endocrowns Fabricated from Nano-ceramic Hybrid and Lithium Disilicate Ceramic Materials: A Randomized Controlled Clinical Trial. J Contemp Dent Pract 2025;26(8):795-805.