Marginal gap of zirconia and lithium disilicate frameworks produced by the CAD-CAM technique through a comparator microscope – in vitro analysis
Ellen Christine Rodrigues Abreu; Vicente Colussi Ferreira ; Karina Andrea Novaes Olivieri ; William Cunha Brandt · 2024 · Brazilian Dental Science
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract
Objective: The aim of this study was to evaluate the marginal gap of frameworks produced using the CAD-CAM system, from zirconia and lithium disilicate blocks, adapted to a tooth preparation and a gypsum die. Material and Methods: For this study, a human first molar tooth was used as a master model with a full crown preparation. It was molded 20 times to obtain the gypsum die and randomly divided into 2 groups (n=10) for the fabrication of zirconia and lithium disilicate frameworks. The frameworks were made using pre-sintered zirconia blocks and lithium disilicate blocks, both CAD-CAM systems.
Abstract by Ellen Christine Rodrigues Abreu; Vicente Colussi Ferreira ; Karina Andrea Novaes Olivieri ; William Cunha Brandt , Brazilian Dental Science (2024) — licensed CC BY 4.0.
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Metadata source: DOAJ · DOI 10.4322/bds.2024.e4154