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Root canal posts for the restoration of root filled teeth
M Bolla1, M Muller-Bolla, C Borg
1Faculté de Chirurgie Dentaire, Santé Publique (Public Health), 24 Rue des Diables Bleus, Nice, France, 06 357. muller@unice.fr
The Cochrane Database of Systematic Reviews
|January 27, 2007
Summary
This review found that non-metal posts may have fewer failures than metal posts for restoring endodontically-treated teeth, but the evidence is unreliable. More research is needed to determine the best post and core systems.
Area of Science:
- Restorative Dentistry
- Dental Materials Science
Background:
- Post and core systems are essential for reconstructing endodontically-treated teeth.
- Current guidelines lack specificity for selecting metal versus non-metal post and core systems in various clinical scenarios.
Purpose of the Study:
- To evaluate the effectiveness of different post and core systems for restoring endodontically-treated teeth.
- To compare the clinical failure rates among various post types.
Main Methods:
- Systematic review and meta-analysis of randomized or quasi-randomized clinical trials.
- Searched multiple databases (CENTRAL, MEDLINE, Scopus, EMBASE) and conference proceedings.
- Included trials comparing failures in endodontically-treated teeth with different post types, focusing on retention loss, post fracture, and root fracture.
Main Results:
- Two trials with 317 participants were included; one compared metal to non-metal posts.
- Metal-cast posts showed a higher failure risk (9/98) compared to carbon fiber posts (0/97), but this finding is from a single study with high risk of bias.
- Fewer failures were observed with non-metal posts, though the evidence is currently unreliable.
Conclusions:
- The optimal post and core system for teeth with two or three remaining dentine walls could not be determined.
- Further randomized clinical trials are necessary to confirm the superiority of fiber-reinforced post and core systems.
- Future research should clarify the impact of remaining tooth structure on treatment outcomes and utilize well-defined inclusion criteria regarding dentine wall presence.
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