Effect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
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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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 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
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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por eng |
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