Incomplete vertical root fracture associated with lateral compaction technique: a microscopic analysis

Detalhes bibliográficos
Autor(a) principal: Chávez-Andrade, Gisselle Moraima
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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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
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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
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dc.format.none.fl_str_mv application/pdf
application/pdf
application/msword
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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
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