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An evaluation of luting agent application technique effect on fibre post retention
Camillo D'Arcangelo1, Maurizio D'Amario, Mirco Vadini
1Department of Restorative Dentistry, School of Dentistry, University G. D'Annunzio, Via dei Vestini 31, 66100 Chieti, Italy. cdarcang@unich.it
Journal of Dentistry
|February 22, 2008
Summary
The application method for luting agents significantly impacts fibre post bond strength, with lentulo spirals and syringes yielding better results. ENA Post showed consistent bond strength regardless of application technique.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
- Prosthodontics
Background:
- Fibre posts are widely used in endodontic restorations.
- The bond strength of fibre posts is crucial for long-term restoration success.
- Luting agent application technique can influence bond strength.
Purpose of the Study:
- To evaluate the bond strengths of three different fibre post systems.
- To compare the effect of various luting agent application methods on bond strength.
- To analyze failure modes using scanning electron microscopy.
Main Methods:
- Three fibre post systems (ENA Post, Anatomical Post, Endo Light-Post) were tested.
- Luting agents were applied using lentulo spirals, direct post surface application, or syringes.
- Push-out bond strength tests were conducted on root sections.
- Scanning electron microscopy (SEM) was used for failure analysis.
Main Results:
- Bond strength was significantly influenced by the post/adhesive/cement system and application technique.
- Root region did not statistically affect bond strengths.
- SEM revealed a prevalence of post/cement and mixed failures.
Conclusions:
- Lentulo spirals and specific syringes are recommended for luting agent application for optimal bond strength.
- The ENA Post system demonstrated consistent bond strength across different application methods.
- Application technique is a critical factor in achieving reliable fibre post adhesion.