Determination of root dentin and cementum micro hardness

Vickers micro hardness was assessed on root dentin and cementum in 30 canines obtained from the Periodontics Discipline tooth bank. Crown and cervical portion of the root were discarded by a transverse section situated 3mm, apically, from the cemento-enamel junction on the buccal surface, thus obtai...

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Main Authors: Fabiano Ribeiro Cirano, Giuseppe Alexandre Romito, José Hildebrando Todescan
Format: Article
Language:English
Published: Universidade Estadual de Campinas 2015-11-01
Series:Brazilian Journal of Oral Sciences
Subjects:
Online Access:https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641738
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spelling doaj-b208222c5c0a4adb85a7245cea5877ce2021-07-15T14:01:45ZengUniversidade Estadual de CampinasBrazilian Journal of Oral Sciences1677-32252015-11-013810.20396/bjos.v3i8.8641738Determination of root dentin and cementum micro hardnessFabiano Ribeiro Cirano0Giuseppe Alexandre Romito1José Hildebrando Todescan2Department of Stomatology, Periodontics division University of São PauloDepartment of Stomatology, Periodontics division University of São PauloDepartment of Stomatology, Periodontics division University of São PauloVickers micro hardness was assessed on root dentin and cementum in 30 canines obtained from the Periodontics Discipline tooth bank. Crown and cervical portion of the root were discarded by a transverse section situated 3mm, apically, from the cemento-enamel junction on the buccal surface, thus obtaining the root specimen. On root dentin, mean micro hardness values were obtained for 3 regions: (DR1) from 0.05 to 0.1 mm of the cemento dentin junction – 30.64 VHN; (DR2) from 0.3 to 0.5 mm of the cemento dentin junction – 56.92 VHN and (DR3) from 0.8 to 1.0 mm of the cemento dentin junction – 32.70 VHN. After statistical analysis (Variance Analysis test, p < 0,05), we conclude that micro hardness at the DR2 region was statistically greater than that at the DR3 region which was, in turn, greater than that at the DR1 region. The mean micro hardness of cementum was 19.70 VHN.https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641738Micro hardness. Root dentin. Cementum
collection DOAJ
language English
format Article
sources DOAJ
author Fabiano Ribeiro Cirano
Giuseppe Alexandre Romito
José Hildebrando Todescan
spellingShingle Fabiano Ribeiro Cirano
Giuseppe Alexandre Romito
José Hildebrando Todescan
Determination of root dentin and cementum micro hardness
Brazilian Journal of Oral Sciences
Micro hardness. Root dentin. Cementum
author_facet Fabiano Ribeiro Cirano
Giuseppe Alexandre Romito
José Hildebrando Todescan
author_sort Fabiano Ribeiro Cirano
title Determination of root dentin and cementum micro hardness
title_short Determination of root dentin and cementum micro hardness
title_full Determination of root dentin and cementum micro hardness
title_fullStr Determination of root dentin and cementum micro hardness
title_full_unstemmed Determination of root dentin and cementum micro hardness
title_sort determination of root dentin and cementum micro hardness
publisher Universidade Estadual de Campinas
series Brazilian Journal of Oral Sciences
issn 1677-3225
publishDate 2015-11-01
description Vickers micro hardness was assessed on root dentin and cementum in 30 canines obtained from the Periodontics Discipline tooth bank. Crown and cervical portion of the root were discarded by a transverse section situated 3mm, apically, from the cemento-enamel junction on the buccal surface, thus obtaining the root specimen. On root dentin, mean micro hardness values were obtained for 3 regions: (DR1) from 0.05 to 0.1 mm of the cemento dentin junction – 30.64 VHN; (DR2) from 0.3 to 0.5 mm of the cemento dentin junction – 56.92 VHN and (DR3) from 0.8 to 1.0 mm of the cemento dentin junction – 32.70 VHN. After statistical analysis (Variance Analysis test, p < 0,05), we conclude that micro hardness at the DR2 region was statistically greater than that at the DR3 region which was, in turn, greater than that at the DR1 region. The mean micro hardness of cementum was 19.70 VHN.
topic Micro hardness. Root dentin. Cementum
url https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641738
work_keys_str_mv AT fabianoribeirocirano determinationofrootdentinandcementummicrohardness
AT giuseppealexandreromito determinationofrootdentinandcementummicrohardness
AT josehildebrandotodescan determinationofrootdentinandcementummicrohardness
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