Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/894 |
Resumo: | Objective:This study evaluated the effects of root canal obturation employing lateral compaction technique and spreader load of 1.5 kg on the incidence of complete (CVRF) or incomplete vertical root fractures (IVRF). Material and Methods: Twenty-seven distal roots of extracted human mandibular molars were used. All root canals were prepared by biomechanical step-back technique and obturated by lateral compaction technique. The prepared roots were distributed into two groups: G1- experimental (n=17) and G2- control (n=10). During obturation, load of 1.5 kg was applied to a size 30 finger spreader. Pre- and post-obturation images of the coronal portion of the roots were captured by inverted digital microscopy and analyzed by one trained examiner. Data were evaluated by Fisher’s test (p < 0.05) using GrapH Pad Prism 5.0. Results: No roots exhibited CVRF. All fractures observed before and after obturation were IVRF or “other defects”. In G2 (control group), there was no increase of IVRF number. Interestingly, G1 presented an increase in the IVRF number to 70,59% in the 12 teeth out of 17 teeth studied. The statistical analysis showed that the mean of IVRF increased significantly in G1 when compared to G2 (p < 0.05). Conclusions: The application of a 1.5 kg spreader load during lateral compaction technique does not produce complete vertical root fractures, but may produce incomplete fractures or “other defects”. |
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oai:ojs.pkp.sfu.ca:article/894 |
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UNESP-20 |
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Brazilian Dental Science |
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spelling |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysisObjective:This study evaluated the effects of root canal obturation employing lateral compaction technique and spreader load of 1.5 kg on the incidence of complete (CVRF) or incomplete vertical root fractures (IVRF). Material and Methods: Twenty-seven distal roots of extracted human mandibular molars were used. All root canals were prepared by biomechanical step-back technique and obturated by lateral compaction technique. The prepared roots were distributed into two groups: G1- experimental (n=17) and G2- control (n=10). During obturation, load of 1.5 kg was applied to a size 30 finger spreader. Pre- and post-obturation images of the coronal portion of the roots were captured by inverted digital microscopy and analyzed by one trained examiner. Data were evaluated by Fisher’s test (p < 0.05) using GrapH Pad Prism 5.0. Results: No roots exhibited CVRF. All fractures observed before and after obturation were IVRF or “other defects”. In G2 (control group), there was no increase of IVRF number. Interestingly, G1 presented an increase in the IVRF number to 70,59% in the 12 teeth out of 17 teeth studied. The statistical analysis showed that the mean of IVRF increased significantly in G1 when compared to G2 (p < 0.05). Conclusions: The application of a 1.5 kg spreader load during lateral compaction technique does not produce complete vertical root fractures, but may produce incomplete fractures or “other defects”.Institute of Science and Technology of São José dos Campos2013-06-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfapplication/mswordapplication/mswordhttps://ojs.ict.unesp.br/index.php/cob/article/view/89410.14295/bds.2013.v16i2.894Brazilian Dental Science; Vol. 16 No. 2 (2013): Apr. - Jun. / 2013 - Published June 2013; 59-63Brazilian Dental Science; v. 16 n. 2 (2013): Apr. - Jun. / 2013 - Published June 2013; 59-632178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/894/806https://ojs.ict.unesp.br/index.php/cob/article/view/894/1886https://ojs.ict.unesp.br/index.php/cob/article/view/894/1887https://ojs.ict.unesp.br/index.php/cob/article/view/894/1888Chávez-Andrade, Gisselle Moraimainfo:eu-repo/semantics/openAccess2020-01-28T12:37:06Zoai:ojs.pkp.sfu.ca:article/894Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br||bds.ict@unesp.br2178-60112178-6011opendoar:2020-01-28T12:37:06Brazilian Dental Science - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis |
title |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis |
spellingShingle |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis Chávez-Andrade, Gisselle Moraima |
title_short |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis |
title_full |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis |
title_fullStr |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis |
title_full_unstemmed |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis |
title_sort |
Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis |
author |
Chávez-Andrade, Gisselle Moraima |
author_facet |
Chávez-Andrade, Gisselle Moraima |
author_role |
author |
dc.contributor.author.fl_str_mv |
Chávez-Andrade, Gisselle Moraima |
description |
Objective:This study evaluated the effects of root canal obturation employing lateral compaction technique and spreader load of 1.5 kg on the incidence of complete (CVRF) or incomplete vertical root fractures (IVRF). Material and Methods: Twenty-seven distal roots of extracted human mandibular molars were used. All root canals were prepared by biomechanical step-back technique and obturated by lateral compaction technique. The prepared roots were distributed into two groups: G1- experimental (n=17) and G2- control (n=10). During obturation, load of 1.5 kg was applied to a size 30 finger spreader. Pre- and post-obturation images of the coronal portion of the roots were captured by inverted digital microscopy and analyzed by one trained examiner. Data were evaluated by Fisher’s test (p < 0.05) using GrapH Pad Prism 5.0. Results: No roots exhibited CVRF. All fractures observed before and after obturation were IVRF or “other defects”. In G2 (control group), there was no increase of IVRF number. Interestingly, G1 presented an increase in the IVRF number to 70,59% in the 12 teeth out of 17 teeth studied. The statistical analysis showed that the mean of IVRF increased significantly in G1 when compared to G2 (p < 0.05). Conclusions: The application of a 1.5 kg spreader load during lateral compaction technique does not produce complete vertical root fractures, but may produce incomplete fractures or “other defects”. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06-24 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/894 10.14295/bds.2013.v16i2.894 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/894 |
identifier_str_mv |
10.14295/bds.2013.v16i2.894 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/894/806 https://ojs.ict.unesp.br/index.php/cob/article/view/894/1886 https://ojs.ict.unesp.br/index.php/cob/article/view/894/1887 https://ojs.ict.unesp.br/index.php/cob/article/view/894/1888 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/msword application/msword |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 16 No. 2 (2013): Apr. - Jun. / 2013 - Published June 2013; 59-63 Brazilian Dental Science; v. 16 n. 2 (2013): Apr. - Jun. / 2013 - Published June 2013; 59-63 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br||bds.ict@unesp.br |
_version_ |
1824500471393419264 |