Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets

Detalhes bibliográficos
Autor(a) principal: Cumerlato,Marina
Data de Publicação: 2017
Outros Autores: Lima,Eduardo Martinelli de, Osorio,Leandro Berni, Mota,Eduardo Gonçalves, Menezes,Luciane Macedo de, Rizzatto,Susana Maria Deon
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Dental Press Journal of Orthodontics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000400047
Resumo: ABSTRACT Objective: The aim of this in vitro study was to evaluate and compare the effects of grinding, drilling, sandblasting, and ageing prefabricated teeth (PfT) on the shear bond strength (SBS) of orthodontic brackets, as well as the effects of surface treatments on the adhesive remnant index (ARI). Methods: One-hundred-ninety-two PfT were divided into four groups (n = 48): Group 1, no surface treatment was done; Group 2, grinding was performed with a cylindrical diamond bur; Group 3, two drillings were done with a spherical diamond bur; Group 4, sandblasting was performed with 50-µm aluminum oxide. Before the experiment, half of the samples stayed immersed in distilled water at 37oC for 90 days. Brackets were bonded with Transbond XT and shear strength tests were carried out using a universal testing machine. SBS were compared by surface treatment and by ageing with two-way ANOVA, followed by Tukey’s test. ARI scores were compared between surface treatments with Kruskal-Wallis test followed by Dunn’s test. Results: Surface treatments on PfT enhanced SBS of brackets (p< 0.01), result not observed with ageing (p= 0.45). Groups II, III, and IV showed higher SBS and greater ARI than the Group 1 (p< 0.05). SBS was greater in the groups 3 and 4 (drilling, sandblasting) than in the Group 2 (grinding) (p< 0.05). SBS and ARI showed a positive correlation (Spearman’s R2= 0.57; p< 0.05). Conclusion: Surface treatment on PfT enhanced SBS of brackets, however ageing did not show any relevance. Sandblasting and drilling showed greater SBS than grinding. There was a positive correlation between SBS and ARI.
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spelling Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic bracketsArtificial teethOrthodontic bracketsShear strengthTemporary crowns.ABSTRACT Objective: The aim of this in vitro study was to evaluate and compare the effects of grinding, drilling, sandblasting, and ageing prefabricated teeth (PfT) on the shear bond strength (SBS) of orthodontic brackets, as well as the effects of surface treatments on the adhesive remnant index (ARI). Methods: One-hundred-ninety-two PfT were divided into four groups (n = 48): Group 1, no surface treatment was done; Group 2, grinding was performed with a cylindrical diamond bur; Group 3, two drillings were done with a spherical diamond bur; Group 4, sandblasting was performed with 50-µm aluminum oxide. Before the experiment, half of the samples stayed immersed in distilled water at 37oC for 90 days. Brackets were bonded with Transbond XT and shear strength tests were carried out using a universal testing machine. SBS were compared by surface treatment and by ageing with two-way ANOVA, followed by Tukey’s test. ARI scores were compared between surface treatments with Kruskal-Wallis test followed by Dunn’s test. Results: Surface treatments on PfT enhanced SBS of brackets (p< 0.01), result not observed with ageing (p= 0.45). Groups II, III, and IV showed higher SBS and greater ARI than the Group 1 (p< 0.05). SBS was greater in the groups 3 and 4 (drilling, sandblasting) than in the Group 2 (grinding) (p< 0.05). SBS and ARI showed a positive correlation (Spearman’s R2= 0.57; p< 0.05). Conclusion: Surface treatment on PfT enhanced SBS of brackets, however ageing did not show any relevance. Sandblasting and drilling showed greater SBS than grinding. There was a positive correlation between SBS and ARI.Dental Press International2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000400047Dental Press Journal of Orthodontics v.22 n.4 2017reponame:Dental Press Journal of Orthodonticsinstname:Dental Press International (DPI)instacron:DPI10.1590/2177-6709.22.4.047-052.oarinfo:eu-repo/semantics/openAccessCumerlato,MarinaLima,Eduardo Martinelli deOsorio,Leandro BerniMota,Eduardo GonçalvesMenezes,Luciane Macedo deRizzatto,Susana Maria Deoneng2017-09-18T00:00:00Zoai:scielo:S2176-94512017000400047Revistahttp://www.scielo.br/dpjoONGhttps://old.scielo.br/oai/scielo-oai.phpartigos@dentalpress.com.br||davidnormando@hotmail.com2177-67092176-9451opendoar:2017-09-18T00:00Dental Press Journal of Orthodontics - Dental Press International (DPI)false
dc.title.none.fl_str_mv Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets
title Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets
spellingShingle Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets
Cumerlato,Marina
Artificial teeth
Orthodontic brackets
Shear strength
Temporary crowns.
title_short Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets
title_full Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets
title_fullStr Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets
title_full_unstemmed Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets
title_sort Effect of surface treatment of prefabricated teeth on shear bond strength of orthodontic brackets
author Cumerlato,Marina
author_facet Cumerlato,Marina
Lima,Eduardo Martinelli de
Osorio,Leandro Berni
Mota,Eduardo Gonçalves
Menezes,Luciane Macedo de
Rizzatto,Susana Maria Deon
author_role author
author2 Lima,Eduardo Martinelli de
Osorio,Leandro Berni
Mota,Eduardo Gonçalves
Menezes,Luciane Macedo de
Rizzatto,Susana Maria Deon
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Cumerlato,Marina
Lima,Eduardo Martinelli de
Osorio,Leandro Berni
Mota,Eduardo Gonçalves
Menezes,Luciane Macedo de
Rizzatto,Susana Maria Deon
dc.subject.por.fl_str_mv Artificial teeth
Orthodontic brackets
Shear strength
Temporary crowns.
topic Artificial teeth
Orthodontic brackets
Shear strength
Temporary crowns.
description ABSTRACT Objective: The aim of this in vitro study was to evaluate and compare the effects of grinding, drilling, sandblasting, and ageing prefabricated teeth (PfT) on the shear bond strength (SBS) of orthodontic brackets, as well as the effects of surface treatments on the adhesive remnant index (ARI). Methods: One-hundred-ninety-two PfT were divided into four groups (n = 48): Group 1, no surface treatment was done; Group 2, grinding was performed with a cylindrical diamond bur; Group 3, two drillings were done with a spherical diamond bur; Group 4, sandblasting was performed with 50-µm aluminum oxide. Before the experiment, half of the samples stayed immersed in distilled water at 37oC for 90 days. Brackets were bonded with Transbond XT and shear strength tests were carried out using a universal testing machine. SBS were compared by surface treatment and by ageing with two-way ANOVA, followed by Tukey’s test. ARI scores were compared between surface treatments with Kruskal-Wallis test followed by Dunn’s test. Results: Surface treatments on PfT enhanced SBS of brackets (p< 0.01), result not observed with ageing (p= 0.45). Groups II, III, and IV showed higher SBS and greater ARI than the Group 1 (p< 0.05). SBS was greater in the groups 3 and 4 (drilling, sandblasting) than in the Group 2 (grinding) (p< 0.05). SBS and ARI showed a positive correlation (Spearman’s R2= 0.57; p< 0.05). Conclusion: Surface treatment on PfT enhanced SBS of brackets, however ageing did not show any relevance. Sandblasting and drilling showed greater SBS than grinding. There was a positive correlation between SBS and ARI.
publishDate 2017
dc.date.none.fl_str_mv 2017-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000400047
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000400047
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2177-6709.22.4.047-052.oar
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Dental Press International
publisher.none.fl_str_mv Dental Press International
dc.source.none.fl_str_mv Dental Press Journal of Orthodontics v.22 n.4 2017
reponame:Dental Press Journal of Orthodontics
instname:Dental Press International (DPI)
instacron:DPI
instname_str Dental Press International (DPI)
instacron_str DPI
institution DPI
reponame_str Dental Press Journal of Orthodontics
collection Dental Press Journal of Orthodontics
repository.name.fl_str_mv Dental Press Journal of Orthodontics - Dental Press International (DPI)
repository.mail.fl_str_mv artigos@dentalpress.com.br||davidnormando@hotmail.com
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