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Microleakage of posts used to restore endodontically treated teeth
1Department of Restorative Dentistry, Faculty of Dentistry, University of Manitoba, Canada.
Journal of Endodontics
|July 1, 1995
Summary
This study evaluated microleakage in various post systems for dental restorations. Results indicate that no tested post system consistently prevented fluid leakage, highlighting challenges in achieving a fluid-tight seal.
Area of Science:
- Restorative Dentistry
- Dental Materials Science
Background:
- Post systems are crucial for restoring endodontically treated teeth.
- Microleakage around posts can compromise restoration longevity and lead to bacterial invasion.
Purpose of the Study:
- To quantitatively assess the microleakage of different post systems.
- To compare the sealing capabilities of various post materials and cementation techniques.
Main Methods:
- Eighty extracted human single-rooted teeth were used.
- Various post systems (stainless steel, composite resin) were tested with different cements and bonding agents.
- A fluid filtration system was employed to measure microleakage.
Main Results:
- None of the tested post systems demonstrated consistent prevention of microleakage.
- Variations in sealing effectiveness were observed among the different material and cement combinations.
Conclusions:
- Achieving a consistent fluid-tight seal with current post systems remains a clinical challenge.
- Further research is needed to develop improved post systems with enhanced sealing properties.