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Published on: December 20, 2024
Trial insertion procedure for milled lithium disilicate restorations in the precrystallized state
Wei-Shao Lin1, Bryan T Harris, Dean Morton
1Department of Oral Health and Rehabilitation, School of Dentistry, University of Louisville, Louisville, KY 40202, USA. WeiShao.Lin@Louisville.edu
The Journal of Prosthetic Dentistry
|January 11, 2012
Summary
This study proposes a lithium disilicate restoration protocol using CAD/CAM. Trial insertion before crystallization optimizes fit and esthetics, minimizing damage to final dental restorations.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
- Digital Dentistry
Background:
- Restoring teeth in the esthetic zone requires precise marginal fit and esthetic outcomes.
- Computer-aided design and computer-aided manufacturing (CAD/CAM) offers advanced fabrication possibilities.
- Lithium disilicate is a popular ceramic material for dental restorations.
Purpose of the Study:
- To present a treatment protocol for lithium disilicate restorations fabricated with CAD/CAM for the esthetic zone.
- To detail a technique involving precrystallization trial insertion for optimizing fit and esthetics.
- To highlight the benefits of pre-crystallization adjustments for minimizing damage to definitive restorations.
Main Methods:
- Utilizing a computer-aided design and computer-aided manufacturing (CAD/CAM) workflow.
- Fabricating lithium disilicate restorations.
- Performing trial insertion of restorations at the precrystallized stage.
- Making necessary adjustments before final crystallization.
Main Results:
- Verification of marginal fit and internal adaptation during precrystallization stage.
- Evaluation of the overall esthetic plan before final fabrication.
- Successful adjustments to lithium disilicate ceramic prior to crystallization.
- Minimized potential surface and subsurface damage to definitive restorations.
Conclusions:
- The proposed protocol ensures optimal clinical results for esthetic zone restorations.
- Precrystallization trial insertion is effective for verifying fit and esthetics.
- Adjusting lithium disilicate before crystallization enhances the quality of definitive restorations.
