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Requirements of an impression material for fixed prostheses
1Department of Conservative Dentistry, Faculty of Dentistry, University of Hong Kong.
General Dentistry
|July 15, 1998
Summary
This review covers essential clinical and lab steps for dental impressions used in fixed prostheses. It details material selection, techniques, and troubleshooting common impression problems for better dental restorations.
Area of Science:
- Dentistry
- Prosthodontics
- Dental Materials
Background:
- Accurate dental impressions are crucial for fabricating successful fixed prostheses.
- Selecting appropriate impression materials and mastering techniques are vital for predictable clinical outcomes.
Purpose of the Study:
- To provide a comprehensive review of the clinical and laboratory procedures for taking dental impressions for fixed prostheses.
- To offer guidance on selecting impression materials and techniques.
- To identify and address common problems encountered during the impression process.
Main Methods:
- Literature review of clinical and laboratory techniques for dental impressions.
- Discussion of various impression materials, including elastomers and hydrocolloids.
- Analysis of common impression errors and their etiologies.
Main Results:
- Detailed recommendations for impression material selection based on clinical scenarios.
- Step-by-step guidance on impression techniques for optimal accuracy.
- Identification of factors contributing to common impression problems like voids, pulls, and distortions.
Conclusions:
- Proper selection of impression materials and meticulous technique are paramount for achieving accurate impressions in fixed prosthodontics.
- Understanding potential problems and their causes allows for proactive management and improved final prosthesis fit.