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

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 informat...

Full description

Bibliographic Details
Main Authors: Martin Smutný, Martin Kopeček, Aleš Bezrouk
Format: Article
Language:English
Published: Karolinum Press 2022-12-01
Series:Acta Medica
Online Access:https://actamedica.lfhk.cuni.cz/65/2/0059/
_version_ 1811190693179162624
author Martin Smutný
Martin Kopeček
Aleš Bezrouk
author_facet Martin Smutný
Martin Kopeček
Aleš Bezrouk
author_sort Martin Smutný
collection DOAJ
description 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.
first_indexed 2024-04-11T14:54:32Z
format Article
id doaj.art-0036f8f772f54cc8a29eef738a4ab099
institution Directory Open Access Journal
issn 1805-9694
language English
last_indexed 2024-04-11T14:54:32Z
publishDate 2022-12-01
publisher Karolinum Press
record_format Article
series Acta Medica
spelling doaj.art-0036f8f772f54cc8a29eef738a4ab0992022-12-22T04:17:18ZengKarolinum PressActa Medica1805-96942022-12-01652596510.14712/18059694.2022.19An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic BlocksMartin SmutnýMartin KopečekAleš BezroukDue 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.https://actamedica.lfhk.cuni.cz/65/2/0059/
spellingShingle Martin Smutný
Martin Kopeček
Aleš Bezrouk
An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic Blocks
Acta Medica
title An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic Blocks
title_full An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic Blocks
title_fullStr An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic Blocks
title_full_unstemmed An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic Blocks
title_short An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic Blocks
title_sort investigation of the accuracy and reproducibility of 3d printed transparent endodontic blocks
url https://actamedica.lfhk.cuni.cz/65/2/0059/
work_keys_str_mv AT martinsmutny aninvestigationoftheaccuracyandreproducibilityof3dprintedtransparentendodonticblocks
AT martinkopecek aninvestigationoftheaccuracyandreproducibilityof3dprintedtransparentendodonticblocks
AT alesbezrouk aninvestigationoftheaccuracyandreproducibilityof3dprintedtransparentendodonticblocks
AT martinsmutny investigationoftheaccuracyandreproducibilityof3dprintedtransparentendodonticblocks
AT martinkopecek investigationoftheaccuracyandreproducibilityof3dprintedtransparentendodonticblocks
AT alesbezrouk investigationoftheaccuracyandreproducibilityof3dprintedtransparentendodonticblocks