Effect of voxel size of Micro-CT on the assessment of root canal preparation

Effect of voxel size of Micro-CT on the assessment of root canal preparation

Abstract: The aim of this study was to assess the influence of micro-computed tomography (micro-CT) voxel size on evaluation of root canal preparation using rotary heat-treated nickel-titanium files. Curved mesial root canals of mandibular molars were prepared using ProDesign Logic 30/.05 (PDL) or HyFlex EDM 25/.08 (HEDM) (n=12). The specimens were scanned using micro-CT with 5&#956;m of voxel size before and after root canal preparation. Images with sub-resolution of 10 and 20&#956;m voxel sizes were obtained. The percentage of volume increase, debris and uninstrumented root canal surface were analyzed in the different voxel sizes. Data were compared using unpaired Student's t-test and ANOVA statistical tests (&#945;=0.05). No differences were observed for percentage of volume increase, debris and instrumented surface between the root canals prepared by PDL and HEDM (p>0.05). Both systems promoted higher percentage of debris in the apical third compared to the middle third (p<0.05). After instrumentation using PDL the percentage of uninstrumented surface was highr in the apical third than middle third only when analysis were performed at 5µm (p<0.05). When comparing the different voxel sizes (5,10 or 20µm), both groups showed different means for the variables, with no significant difference (p>0.05). PDL and HEDM had similar root canal preparation capacity. Micro-CT images using different voxel sizes did not influence the results of volume increase and debris evaluation. However, images at 5µm showed greater accuracy to evaluate the percentage of uninstrumented surfaces.

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Main Authors: Pinto,Jader Camilo, Lucas-Oliveira,Everton, Bonagamba,Tito Jose, Guerreiro-Tanomaru,Juliane Maria, Tanomaru-Filho,Mario
Format: Digital revista
Language:English
Published: Facultad de Odontología. Universidad de Costa Rica 2023
Online Access:http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S2215-34112023000200093
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spelling oai:scielo:S2215-341120230002000932023-07-18Effect of voxel size of Micro-CT on the assessment of root canal preparationPinto,Jader CamiloLucas-Oliveira,EvertonBonagamba,Tito JoseGuerreiro-Tanomaru,Juliane MariaTanomaru-Filho,Mario Endodontics Dentin Root canal Root canal preparation Dental pulp cavity X-ray microtomography Abstract: The aim of this study was to assess the influence of micro-computed tomography (micro-CT) voxel size on evaluation of root canal preparation using rotary heat-treated nickel-titanium files. Curved mesial root canals of mandibular molars were prepared using ProDesign Logic 30/.05 (PDL) or HyFlex EDM 25/.08 (HEDM) (n=12). The specimens were scanned using micro-CT with 5&#956;m of voxel size before and after root canal preparation. Images with sub-resolution of 10 and 20&#956;m voxel sizes were obtained. The percentage of volume increase, debris and uninstrumented root canal surface were analyzed in the different voxel sizes. Data were compared using unpaired Student's t-test and ANOVA statistical tests (&#945;=0.05). No differences were observed for percentage of volume increase, debris and instrumented surface between the root canals prepared by PDL and HEDM (p>0.05). Both systems promoted higher percentage of debris in the apical third compared to the middle third (p<0.05). After instrumentation using PDL the percentage of uninstrumented surface was highr in the apical third than middle third only when analysis were performed at 5µm (p<0.05). When comparing the different voxel sizes (5,10 or 20µm), both groups showed different means for the variables, with no significant difference (p>0.05). PDL and HEDM had similar root canal preparation capacity. Micro-CT images using different voxel sizes did not influence the results of volume increase and debris evaluation. However, images at 5µm showed greater accuracy to evaluate the percentage of uninstrumented surfaces.info:eu-repo/semantics/openAccessFacultad de Odontología. Universidad de Costa RicaOdovtos International Journal of Dental Sciences v.25 n.2 20232023-08-01info:eu-repo/semantics/articletext/htmlhttp://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S2215-34112023000200093en10.15517/ijds.2023.53811
institution SCIELO
collection OJS
country Costa Rica
countrycode CR
component Revista
access En linea
databasecode rev-scielo-cr
tag revista
region America Central
libraryname SciELO
language English
format Digital
author Pinto,Jader Camilo
Lucas-Oliveira,Everton
Bonagamba,Tito Jose
Guerreiro-Tanomaru,Juliane Maria
Tanomaru-Filho,Mario
spellingShingle Pinto,Jader Camilo
Lucas-Oliveira,Everton
Bonagamba,Tito Jose
Guerreiro-Tanomaru,Juliane Maria
Tanomaru-Filho,Mario
Effect of voxel size of Micro-CT on the assessment of root canal preparation
author_facet Pinto,Jader Camilo
Lucas-Oliveira,Everton
Bonagamba,Tito Jose
Guerreiro-Tanomaru,Juliane Maria
Tanomaru-Filho,Mario
author_sort Pinto,Jader Camilo
title Effect of voxel size of Micro-CT on the assessment of root canal preparation
title_short Effect of voxel size of Micro-CT on the assessment of root canal preparation
title_full Effect of voxel size of Micro-CT on the assessment of root canal preparation
title_fullStr Effect of voxel size of Micro-CT on the assessment of root canal preparation
title_full_unstemmed Effect of voxel size of Micro-CT on the assessment of root canal preparation
title_sort effect of voxel size of micro-ct on the assessment of root canal preparation
description Abstract: The aim of this study was to assess the influence of micro-computed tomography (micro-CT) voxel size on evaluation of root canal preparation using rotary heat-treated nickel-titanium files. Curved mesial root canals of mandibular molars were prepared using ProDesign Logic 30/.05 (PDL) or HyFlex EDM 25/.08 (HEDM) (n=12). The specimens were scanned using micro-CT with 5&#956;m of voxel size before and after root canal preparation. Images with sub-resolution of 10 and 20&#956;m voxel sizes were obtained. The percentage of volume increase, debris and uninstrumented root canal surface were analyzed in the different voxel sizes. Data were compared using unpaired Student's t-test and ANOVA statistical tests (&#945;=0.05). No differences were observed for percentage of volume increase, debris and instrumented surface between the root canals prepared by PDL and HEDM (p>0.05). Both systems promoted higher percentage of debris in the apical third compared to the middle third (p<0.05). After instrumentation using PDL the percentage of uninstrumented surface was highr in the apical third than middle third only when analysis were performed at 5µm (p<0.05). When comparing the different voxel sizes (5,10 or 20µm), both groups showed different means for the variables, with no significant difference (p>0.05). PDL and HEDM had similar root canal preparation capacity. Micro-CT images using different voxel sizes did not influence the results of volume increase and debris evaluation. However, images at 5µm showed greater accuracy to evaluate the percentage of uninstrumented surfaces.
publisher Facultad de Odontología. Universidad de Costa Rica
publishDate 2023
url http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S2215-34112023000200093
work_keys_str_mv AT pintojadercamilo effectofvoxelsizeofmicroctontheassessmentofrootcanalpreparation
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AT bonagambatitojose effectofvoxelsizeofmicroctontheassessmentofrootcanalpreparation
AT guerreirotanomarujulianemaria effectofvoxelsizeofmicroctontheassessmentofrootcanalpreparation
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