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Acid-etched splinting to a ceramometal abutment
The Journal of Prosthetic Dentistry
|May 1, 1986
Summary
This study introduces a novel acid-etch metal splint technique using DuraLingual Wing Forms for enhanced composite bonding. This method allows multiple try-ins without damaging the metal surface, improving resin-bonded splint reliability.
Area of Science:
- Dental Materials Science
- Prosthodontics
- Biomaterials Engineering
Background:
- Traditional resin-bonded splints often rely on electrolytic etching, which can lead to surface contamination and limit try-in procedures.
- Achieving durable bonds in resin-retained fixed partial dentures is crucial for long-term success.
- Ceramometal abutments present unique challenges for mechanical retention in fixed prosthodontics.
Purpose of the Study:
- To describe a new acid-etch metal splint technique utilizing mechanical undercuts for composite bonding.
- To evaluate the feasibility of incorporating this technique into ceramometal abutments for resin-retained fixed partial dentures.
- To demonstrate a method for improving bond strength and durability in resin-bonded prostheses.
Main Methods:
- The technique involves using DuraLingual Wing Form patterns that create internal mechanical undercuts on the splint for composite adhesion.
- The external surface of the cast splint provides a smooth, solid metal finish.
- For ceramometal abutments, the DuraLingual Wing Form is integrated onto the lingual surface, offering complementary undercuts to the crown.
Main Results:
- The use of mechanical undercuts eliminates the need for electrolytic etching, allowing for multiple try-ins without compromising the bond surface.
- The system provides a smooth external metal surface after casting.
- The combination of undercuts on both the crown and the splint ensures excellent bond strength for the resin-retained prosthesis.
Conclusions:
- The described acid-etch metal splint technique with DuraLingual Wing Forms offers a reliable method for composite bonding in prosthodontics.
- This approach enhances the durability and retrievability of resin-bonded splints and fixed partial dentures, particularly with ceramometal abutments.
- The mechanical undercut system provides a clinically advantageous alternative to traditional surface treatments for resin-bonded restorations.