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Resin retention by immersion-etched alloy
The Journal of Prosthetic Dentistry
|May 1, 1985
Summary
A new immersion etching technique for nonnoble alloys shows comparable composite cement bonding to traditional electrolytic etching. This study found no significant difference in cement retention based on the etching method used.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Dental Materials
Background:
- Dental restorations require strong bonding between alloys and luting cements.
- Surface preparation of nonnoble alloys is crucial for optimal cement adhesion.
- Electrolytic etching is a common method for preparing alloy surfaces.
Purpose of the Study:
- To evaluate a novel immersion technique for etching nonnoble alloys.
- To compare the shear bond strength of composite luting cement to immersion-etched versus electrolytically etched alloys.
- To determine if the etching method impacts cement retention.
Main Methods:
- An immersion etching technique was developed for nonnoble alloys.
- Shear strength tests were conducted to measure composite luting cement bond strength.
- Bonding was assessed on both immersion-etched and electrolytic-etched alloy samples.
Main Results:
- No statistically significant differences were found in cement retention between the two etching methods.
- The shear strength measurements indicated comparable bonding performance.
- The immersion technique is a viable alternative for alloy surface preparation.
Conclusions:
- The method of etching (immersion vs. electrolytic) does not significantly affect the retention of composite luting cement on nonnoble alloys.
- The immersion technique offers a potentially simpler or more accessible alternative for alloy surface preparation in dental applications.