Back to Search Start Over

An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic Blocks

Authors :
Martin Smutný
Martin Kopeček
Aleš Bezrouk
Source :
Acta Medica, Vol 65, Iss 2, Pp 59-65 (2022)
Publication Year :
2022
Publisher :
Karolinum Press, 2022.

Abstract

Due to a broad spectrum of endodontic rotary instruments on the market and no standardised protocol for comparing their mechanical properties, it can be challenging for clinician to choose proper instruments. In vitro studies using resin blocks with artificial canals can offer many valuable information because of their uniformity compared to studies performed on extracted teeth. To improve precision and reproducibility of artificial canals, 3D printing was used in this study to manufacture endodontic test block samples. 20 commercially available endodontic blocks Endo-Training-Bloc-J by Dentsply Sirona were tested. The mean values of the measured parameters were used for a 3D CAD model of their replicas. 20 copies of the endodontic training blocks were printed from acrylic resin (VeroClear-RGD810, Stratasys, Eden Prairie, USA) using the 3D printer Objet30 Pro (Stratasys, Eden Prairie, USA). The key dimensions of the commercial blocks and the 3D printed blocks were measured under and compared using t – test and Levene’s test for equality of variances. The profiles of the 3D printed artificial canals showed significantly lower dimensional variability when compared with the commercial blocks. 3D polyjet printing proved to be a precise and reproducible method for production of blocks for testing endodontic rotary instruments.

Subjects

Subjects :
Medicine

Details

Language :
English
ISSN :
18059694
Volume :
65
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Acta Medica
Publication Type :
Academic Journal
Accession number :
edsdoj.0036f8f772f54cc8a29eef738a4ab099
Document Type :
article
Full Text :
https://doi.org/10.14712/18059694.2022.19