Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.

Detalhes bibliográficos
Autor(a) principal: Torres, Érica Miranda de
Data de Publicação: 2012
Outros Autores: Damasceno, Iane Inarde e Siqueira, Amaral, Bruna Aguiar do, Rodrigues, Renata Cristina Silveira, Carreiro, Adriana da Fonte Porto, Ribeiro, Ricardo Faria
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/20896
Resumo: PURPOSE: To compare and to evaluate the stability of the retentive force of cobalt-chromium (Co-Cr) circumferential clasps (control) to those with an acetyl resin retentive arm. METHODS: Sixteen specimens with a couple of circumferential clasps were made using Co-Cr over a metal model providing 0.25 mm undercuts. Eight specimens were fabricated without the anterior retentive arm, which was made later using acetyl resin (Dental D). Insertion and removal simulation test was performed through 7250 cycles. The retentive force was recorded in Newtons (N) for periods corresponding to 0, 1, 2, 3, 4, and 5 years. The data were subjected to ANOVA and Tukey test to compare periods and to Student's t test to compare groups (α=0.05). RESULTS: Mean (SD) is presented for Co-Cr and resin groups, respectively: 8.09(3.05) and 2.79(1.57) in period 0; 10.48(4.25) and 3.32(1.92) in 1 year; 10.09(4.15) and 3.47(1.81) in 2 years; 9.87(4.30) and 3.46(1.87) in 3 years; 9.46(3.93) and 3.27(1.59) in 4 years; 9.63(3.79) and 3.41(1.59) in 5 years. There were significant differences for Co-Cr between periods of 0 and 1 (p<0.001), 0 and 2 (p<0.01) and 0 and 3 (p<0.05). In the resin group, no significant differences were found between periods (p>0.05). Comparisons between the groups showed statistical differences for all tested periods: 0 (p=0.0012), 1 (p=0.0013), 2 (p=0.0019), 3 (p=0.0031), 4 (p=0.0027) and 5 years (p=0.0014). CONCLUSIONS: Acetyl resin retentive arms, even if only in the anterior clasps, can significantly reduce the retentive force, but this force remained stable after 5 years of simulated use.
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spelling Torres, Érica Miranda deDamasceno, Iane Inarde e SiqueiraAmaral, Bruna Aguiar doRodrigues, Renata Cristina SilveiraCarreiro, Adriana da Fonte PortoRibeiro, Ricardo Faria2016-07-11T13:52:56Z2016-07-11T13:52:56Z2012TORRES, Érica Miranda de et al. Effect of acetyl resin retentive arms on the retentive force of circumferential clasps: an in vitro study. Journal of Prosthodontic Research , v. 56, n. 3, p. 216-21, 2012.https://repositorio.ufrn.br/jspui/handle/123456789/20896porengDental claspsAcetyl resinRemovable partial dentureAestheticsFatigueEffect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePURPOSE: To compare and to evaluate the stability of the retentive force of cobalt-chromium (Co-Cr) circumferential clasps (control) to those with an acetyl resin retentive arm. METHODS: Sixteen specimens with a couple of circumferential clasps were made using Co-Cr over a metal model providing 0.25 mm undercuts. Eight specimens were fabricated without the anterior retentive arm, which was made later using acetyl resin (Dental D). Insertion and removal simulation test was performed through 7250 cycles. The retentive force was recorded in Newtons (N) for periods corresponding to 0, 1, 2, 3, 4, and 5 years. The data were subjected to ANOVA and Tukey test to compare periods and to Student's t test to compare groups (α=0.05). RESULTS: Mean (SD) is presented for Co-Cr and resin groups, respectively: 8.09(3.05) and 2.79(1.57) in period 0; 10.48(4.25) and 3.32(1.92) in 1 year; 10.09(4.15) and 3.47(1.81) in 2 years; 9.87(4.30) and 3.46(1.87) in 3 years; 9.46(3.93) and 3.27(1.59) in 4 years; 9.63(3.79) and 3.41(1.59) in 5 years. There were significant differences for Co-Cr between periods of 0 and 1 (p<0.001), 0 and 2 (p<0.01) and 0 and 3 (p<0.05). In the resin group, no significant differences were found between periods (p>0.05). Comparisons between the groups showed statistical differences for all tested periods: 0 (p=0.0012), 1 (p=0.0013), 2 (p=0.0019), 3 (p=0.0031), 4 (p=0.0027) and 5 years (p=0.0014). CONCLUSIONS: Acetyl resin retentive arms, even if only in the anterior clasps, can significantly reduce the retentive force, but this force remained stable after 5 years of simulated use.info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALEffectAcetylResin_Torres_2012.pdfEffectAcetylResin_Torres_2012.pdfArtigo Principalapplication/pdf722639https://repositorio.ufrn.br/bitstream/123456789/20896/1/EffectAcetylResin_Torres_2012.pdfd114375f1484d9d9bee4a93cba95ee9cMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81563https://repositorio.ufrn.br/bitstream/123456789/20896/2/license.txt2fca3d993fd069474a9dfb5156c39499MD52TEXTEffect of acetyl resin retentive arms_2012.pdf.txtEffect of acetyl resin retentive arms_2012.pdf.txtExtracted texttext/plain27936https://repositorio.ufrn.br/bitstream/123456789/20896/7/Effect%20of%20acetyl%20resin%20retentive%20arms_2012.pdf.txt24dffff8c07b6d2cd59b861bf5bbcb37MD57THUMBNAILEffect of acetyl resin retentive arms_2012.pdf.jpgEffect of acetyl resin retentive arms_2012.pdf.jpgIM Thumbnailimage/jpeg9193https://repositorio.ufrn.br/bitstream/123456789/20896/8/Effect%20of%20acetyl%20resin%20retentive%20arms_2012.pdf.jpg7076ea127d4b7f0ff4eb1a3e3c6ea84eMD58123456789/208962021-12-22 14:10:50.463oai:https://repositorio.ufrn.br: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ório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-12-22T17:10:50Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
title Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
spellingShingle Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
Torres, Érica Miranda de
Dental clasps
Acetyl resin
Removable partial denture
Aesthetics
Fatigue
title_short Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
title_full Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
title_fullStr Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
title_full_unstemmed Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
title_sort Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
author Torres, Érica Miranda de
author_facet Torres, Érica Miranda de
Damasceno, Iane Inarde e Siqueira
Amaral, Bruna Aguiar do
Rodrigues, Renata Cristina Silveira
Carreiro, Adriana da Fonte Porto
Ribeiro, Ricardo Faria
author_role author
author2 Damasceno, Iane Inarde e Siqueira
Amaral, Bruna Aguiar do
Rodrigues, Renata Cristina Silveira
Carreiro, Adriana da Fonte Porto
Ribeiro, Ricardo Faria
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Torres, Érica Miranda de
Damasceno, Iane Inarde e Siqueira
Amaral, Bruna Aguiar do
Rodrigues, Renata Cristina Silveira
Carreiro, Adriana da Fonte Porto
Ribeiro, Ricardo Faria
dc.subject.por.fl_str_mv Dental clasps
Acetyl resin
Removable partial denture
Aesthetics
Fatigue
topic Dental clasps
Acetyl resin
Removable partial denture
Aesthetics
Fatigue
description PURPOSE: To compare and to evaluate the stability of the retentive force of cobalt-chromium (Co-Cr) circumferential clasps (control) to those with an acetyl resin retentive arm. METHODS: Sixteen specimens with a couple of circumferential clasps were made using Co-Cr over a metal model providing 0.25 mm undercuts. Eight specimens were fabricated without the anterior retentive arm, which was made later using acetyl resin (Dental D). Insertion and removal simulation test was performed through 7250 cycles. The retentive force was recorded in Newtons (N) for periods corresponding to 0, 1, 2, 3, 4, and 5 years. The data were subjected to ANOVA and Tukey test to compare periods and to Student's t test to compare groups (α=0.05). RESULTS: Mean (SD) is presented for Co-Cr and resin groups, respectively: 8.09(3.05) and 2.79(1.57) in period 0; 10.48(4.25) and 3.32(1.92) in 1 year; 10.09(4.15) and 3.47(1.81) in 2 years; 9.87(4.30) and 3.46(1.87) in 3 years; 9.46(3.93) and 3.27(1.59) in 4 years; 9.63(3.79) and 3.41(1.59) in 5 years. There were significant differences for Co-Cr between periods of 0 and 1 (p<0.001), 0 and 2 (p<0.01) and 0 and 3 (p<0.05). In the resin group, no significant differences were found between periods (p>0.05). Comparisons between the groups showed statistical differences for all tested periods: 0 (p=0.0012), 1 (p=0.0013), 2 (p=0.0019), 3 (p=0.0031), 4 (p=0.0027) and 5 years (p=0.0014). CONCLUSIONS: Acetyl resin retentive arms, even if only in the anterior clasps, can significantly reduce the retentive force, but this force remained stable after 5 years of simulated use.
publishDate 2012
dc.date.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2016-07-11T13:52:56Z
dc.date.available.fl_str_mv 2016-07-11T13:52:56Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.citation.fl_str_mv TORRES, Érica Miranda de et al. Effect of acetyl resin retentive arms on the retentive force of circumferential clasps: an in vitro study. Journal of Prosthodontic Research , v. 56, n. 3, p. 216-21, 2012.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/20896
identifier_str_mv TORRES, Érica Miranda de et al. Effect of acetyl resin retentive arms on the retentive force of circumferential clasps: an in vitro study. Journal of Prosthodontic Research , v. 56, n. 3, p. 216-21, 2012.
url https://repositorio.ufrn.br/jspui/handle/123456789/20896
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