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Updated: Jan 27, 2026
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Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior
Published on: June 27, 2018
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Microscopic evaluation of luting techniques for a fiber-reinforced post system
General Dentistry
|March 16, 2019
Summary
Applying cement directly onto the fiber-reinforced post (FRP) resulted in more voids. Injecting cement into the canal space is the most effective method for FRP cementation, avoiding unnecessary steps like using a Lentulo spiral instrument.
Area of Science:
- Restorative Dentistry
- Dental Materials Science
- Endodontics
Background:
- Fiber-reinforced posts (FRPs) are widely used in endodontically treated teeth.
- Proper cementation technique is crucial for the longevity and success of FRP restorations.
- Varied application methods for luting cement may influence the formation of voids within the post space.
Purpose of the Study:
- To evaluate and compare the efficacy of different cement application techniques for fiber-reinforced posts.
- To determine the optimal method for minimizing cement voids during FRP cementation.
Main Methods:
- Five distinct cement application techniques for FRPs were tested on simulated teeth.
- A dual-curing, automixing cement was used for luting the posts.
- Specimens were sectioned and analyzed using stereomicroscopy to quantify cement void area.
Main Results:
- Application of cement directly onto the post resulted in significantly higher void percentages compared to other methods.
- Injecting cement into the canal space yielded the lowest overall percentage of cement void area.
- The use of a Lentulo spiral instrument did not significantly improve cement void reduction.
Conclusions:
- Injecting luting cement directly into the root canal is the most effective technique for fiber-reinforced post cementation.
- Applying cement solely onto the post is associated with a higher risk of cement voids.
- The Lentulo spiral instrument is not necessary for achieving optimal cement void reduction.
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