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Author Spotlight: 3D Movement Assessment of Maxillary Posterior Teeth in Clear Aligner Treatment

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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.

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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.