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Temporary cement residues affect the bond strength and dentin penetration of self‐adhesive resin cement in fiberglass post cementation
Author(s) -
Zaniboni Joissi Ferrari,
Silva Aryvelto Miranda,
Fernández Eduardo,
Melo Alencar Cristiane,
Morais Jéssika Mayhara Pereira,
Campos Edson Alves,
Kuga Milton Carlos
Publication year - 2021
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.23789
Subject(s) - cementation (geology) , bond strength , cement , penetration (warfare) , dentistry , adhesive , materials science , dentin , composite material , dentinal tubule , medicine , layer (electronics) , operations research , engineering
This study evaluated the persistence of eugenol‐containing (PR, Provy) or eugenol‐free (RT, Relyx Temp, and TB, Temp Bond) temporary cement residues and its effects on push‐out bond strength and dentinal penetration of the self‐adhesive resin cement (Relyx U200). Eighty human roots were endodontically treated and post space prepared. Fourty specimens were distributed in four groups ( n = 10): Control (CO), without any clinical procedure, PR, RT, and TB, where a metallic post was cemented with one of the temporary cements. After metallic post removal, hemi sections post space were submitted to SEM analysis. Another specimens were distributed in similar groups, but fiberglass post was cemented using Relyx U200 cement and submitted to push‐out bond strength and dentinal penetration cement analysis, in post space thirds. SEM analysis were evaluated by Kruskal–Wallis and Dunn tests, while bond strength and dentinal penetration were evaluated by ANOVA One‐Way and Tukey test ( p < .05). Only in apical thirds, PR, RT, and TB showed higher persistence of residues than CO. In bond strength, PR, RT, and TB showed lower values than CO, in all post space thirds ( p < .05). But to dentinal penetration, PR, RT, and TB presented lower values than CO only in apical thirds ( p < .05). There is the greatest persistence of temporary cement residues only in apical post space third, providing less dentinal penetration of the self‐adhesive resinous cement. However, the previous use of temporary cements has negative effects on the bond strength cementation system, regardless of the third evaluated.