Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorTorres, Érica Miranda de-
dc.contributor.authorDamasceno, Iane Inarde e Siqueira-
dc.contributor.authorAmaral, Bruna Aguiar do-
dc.contributor.authorRodrigues, Renata Cristina Silveira-
dc.contributor.authorCarreiro, Adriana da Fonte Porto-
dc.contributor.authorRibeiro, Ricardo Faria-
dc.identifier.citationTORRES, 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.pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectDental claspspt_BR
dc.subjectAcetyl resinpt_BR
dc.subjectRemovable partial denturept_BR
dc.titleEffect of acetyl resin retentive arms on the retentive force ofcircumferential clasps: an in vitro study.pt_BR
dc.description.resumoPURPOSE: 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.pt_BR
Appears in Collections:CCS - DOD - Artigos publicados em periódicos

Files in This Item:
File Description SizeFormat 
EffectAcetylResin_Torres_2012.pdfArtigo Principal705,7 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.