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Evaluation of preformed endodontic postretention force using post-BRUSH technique
M Galli1, V Lombardi, R Bedini
1Department of Odontostomathologic Maxillofacial Surgery, "Sapienza" University, Rome, Italy - massimo.galli@uniroma1.it.
Minerva Stomatologica
|March 10, 2015
Summary
The post-brush effectively cleans the post-space, improving dentine-cement adhesion. This method enhances the retentive power of cemented posts compared to standard protocols.
Area of Science:
- Endodontics
- Dental Materials Science
- Biomaterials Engineering
Background:
- Post-space preparation is crucial for effective cementation.
- Residual debris and smear layer can compromise bond strength.
- Standard cleaning methods may not fully remove all contaminants.
Purpose of the Study:
- To evaluate the efficacy of an endodontic post-brush in cleaning the post-space.
- To compare the retentive strength of cemented posts with and without post-brush treatment.
- To determine if post-brush enhances dentine-cement interface adhesion.
Main Methods:
- Forty endodontically treated monoradicular teeth were used.
- Teeth were randomly divided into two groups (A and B).
- Tensile bond strength tests were performed using an electronic dynamometer.
Main Results:
- Group B, treated with the post-brush, exhibited higher tensile shear-stress at break.
- This indicates superior retentive power compared to Group A (standard protocol).
Conclusions:
- The post-brush provides superior mechanical cleaning of the post-space.
- It effectively removes gutta-percha, smear layer, and cement residues.
- This leads to enhanced dentine-cement interface adhesion and improved post retention.
