Effects of Crystallization Protocols on Lithium Disilicate Crowns
Author Information
Author(s): Shadur Alon, Nissan Joseph, Lugassy Diva, Umansky Ariana, Zenziper Eran, Ben-Izhack Gil
Primary Institution: The Maurice and Gabriela Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University
Hypothesis
There would be no significant differences in the marginal gaps of lithium disilicate CAD/CAM restorations subjected to different crystallization protocols.
Conclusion
Both the long and short crystallization methods for lithium disilicate single crowns produced clinically acceptable marginal gaps, with no significant differences between the two protocols.
Supporting Evidence
- The mean total marginal gap values were 42.91 μm for long crystallization and 43.25 μm for short crystallization.
- No significant differences were found between the groups regarding the mean marginal gap measurements for all four surfaces.
- Both crystallization methods produced marginal gap values of less than 120 μm, which are clinically acceptable.
Takeaway
This study looked at two ways to bake dental crowns made of a special glass material. Both ways worked well, but the faster method is better because it saves time.
Methodology
The study involved scanning 24 plastic teeth and creating 48 lithium disilicate crowns, which were then divided into two groups for long and short crystallization protocols, followed by measuring the marginal gaps using SEM.
Limitations
The study was in vitro, only one type of lithium disilicate was examined, and only one measurement technique was used.
Statistical Information
P-Value
0.894
Statistical Significance
p = 0.894
Digital Object Identifier (DOI)
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