Bond strength of fiber posts to the root canal: Effects of anatomic root levels and resin cements

Daleprane, Bruno; Pereira, Carolina N.B.; Bueno, Audrey Cristina; Ferreira, Raquel Conceição; Moreira, Allyson Nogueira; Magalhães, Cláudia Silami de

doi:10.1016/j.prosdent.2016.01.030

Cited by 31 publications

(32 citation statements)

References 38 publications

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“…This result confirms previous studies [12,13,18,20] that observed no influence of root canal region on fibre post retention. Recording no significant differences in microtensile bond strength values between coronal, middle and apical portions of the post space suggests that retentive strength may be related more to the area of solid dentine than to the density of the dentinal tubules [18].…”

Section: Discussionsupporting

confidence: 92%

“…Thus, bovine teeth were used as alternative substrate for the tests and it has been reported in the literature [5,12,17,22,24].…”

Section: Discussionmentioning

confidence: 99%

“…Substrate condition, difficulty of access for the instrumentation, light activation, and also the technique sensitivity of adhesive systems application have been shown to be associated with lower bond strength in the canal apical third in some studies [8][9][10], but not in others [4,11,12].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Resin Cement Insertion Techniques for Luting Fiberglass Posts

Silva

Pereira

Daleprane

et al. 2016

Pesqui. bras. odontopediatria clín. integr.

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Objective: To evaluate the effect of two insertion techniques of self-adhesive dual resin cement on the bond strength of fiberglass posts in different portions of the root. The homogeneity of the cement layer along the root canal was also evaluated. Material and Methods: The root canals of 28 bovine teeth were instrumented, filled, and 14mm-space was prepared for luting fiberglass posts (Reforpost #3, Angelus), maintaining 4mm of apical sealing. The roots were randomly allocated into two groups according to the cement insertion technique (n=14): Lentulo Drill (Dentsply/Maillefer) or Centrix syringe (Dentsply). The posts were fixed with self-adhesive resin cement (RelyX U200, 3M ESPE). After 7 days, the roots were cross-sectioned to obtain three 1.0-mm-thick samples of each third of the space prepared for the post. Two samples of each third were subjected to push-out test (0.5 mm/min; 200N) and the third specimen was used for the analysis of cementation layer homogeneity. Images of specimens (40x magnification) were assessed and classified by two calibrated examiners (Kappa = 0.87) according to the presence or absence of voids and misfit. Data were analyzed by two-way ANOVA and Pearson Chi-Square test. Results: There was no statistically significant effect of insertion technique (p=0.278) or post-space thirds (p = 0.521) on bond strength of fiberglass posts. Chi-Square test showed that cement insertion with the Lentulo drill produced more cement voids than Centrix syringe (p = 0.023). Conclusion: The cement insertion technique did not influence bond strength of fiberglass posts in bovine root dentin. The use of Centrix syringe for cement insertion is preferred since it produced more homogenous cement layer.

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Section: Discussionsupporting

confidence: 92%

“…Thus, bovine teeth were used as alternative substrate for the tests and it has been reported in the literature [5,12,17,22,24].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Resin Cement Insertion Techniques for Luting Fiberglass Posts

Silva

Pereira

Daleprane

et al. 2016

Pesqui. bras. odontopediatria clín. integr.

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“…On the contrary to the previous hypothesis, Gaston et al 2001. (43) Bitter et al 2006 (44) and Daleprane et al 2016 (37) reported significant higher bond strength at the apical third.…”

Section: Discussionmentioning

confidence: 98%

“…i.e intertubular dentin and the increase in the number of resin tags is not directly proportional to the bond strength,. Daleprane et al2016 (37) defended this hypothesis that although the dentin in the apical third may be more likely to present residues of endodontic treatment (38) ,the bond strength appears to be enhanced by the technical sensitivity of the luting system. The lower volume of cement at apical level may have reduced the polymerization shrinkage stress, thus increasing bond strength values of all resin cements to root dentin ( 39 ) .…”

Section: Discussionmentioning

confidence: 99%

Push-Out Bond Strength of Different Esthetic Posts an in Vitro Study

Hamdy

2018

Egyptian Dental Journal

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PURPOSE: This in vitro study measured push-out bond strength of different posts as function of radicular regions. Statement of problem:In non circular or excessively flared root canals,prefabricated posts may not fit well,increasing cement thickness and bubbles at coronal level which may alter its mechanical performance causing impaired post retention.Methods:40 sound extracted human central incisors were used in this study. All teeth were endodontically treated and decoronated 2 mm above CEJ. Then were randomly divided into 4 groups of 10 each regarding type of post used:group 1(PD): Polymer infiltrated ceramic,Paradigm MZ 100(3M-ESPE); group 2(FRC)Fiber post,Postec Plus (Ivoclar Vivadent); group 3 (ZR): Lava Zirconium dioxide blocks(3M-ESPE); group 4(CP):Cosmo Post, Zirconium dioxide (Ivoclar Vivadent). All posts were luted with Panavia 21(Kuraray Noritake, Japan). Push-out tests were performed to evaluate the bond strength of different posts at different radicular regions.Data were statistically analyzed using one way (ANOVA)and Scheffe test made pairwise comparison (α=0.05).Results: FRC group recorded the highest bond strength (11.78±0.79MPa). PD group showed higher results (10.10±1.12MPa) than ZR(9.56±0.85MPa) and CP(7.93±0.89 MPa) and the 2 latter groups were not significantly different from each other p≤0.05.Regardless to post type, it was found that middle region recorded highest bond strength means value, then apical region meanwhile the lowest bond strength values were recorded at cervical regions p≤0.05.Conclusions:1-Push-out bond strength of different esthetic posts are significantly affected by the type of its materials and manufacturing; FRC recorded the highest bond strength values,PD recorded intermediate values, ZR and CP showed the least values with no significant difference between them.(P≤0.05) 2-Regardless to type of post , the middle radicular region recorded the highest bond strength then apical region, meanwhile cervical region showed the lowest bond strength values P≤0.05.(518)

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Analysis of the adhesive interface of dentine treated with carbodiimide and chitosan before cementation of fiberglass posts with different resin cements

et al. 2023

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The objective of this study is to evaluate the effect of 1‐ethyl‐3‐(3‐dimethylaminopropyl)‐carbodiimide (EDC) and chitosan (CHI) on the adhesive interface of resin cements to root dentine. Forty‐five upper canines were sectioned, endodontically treated, prepared and divided into three groups according to dentine treatment (distilled water—DW, CHI 0.2% and EDC 0.5) and in three subgroups according to resin cement: RelyX ARC, Panavia F 2.0 or RelyX U200. Slices were obtained, with five slices of each third submitted to the analysis of the adaptation of the adhesive interface through scores and the perimeter with gaps in confocal laser scanning microscopy and one slice of each third later evaluated qualitatively in scanning electron microscopy. The results were analyzed using with Kruskal–Wallis and Spearman correlation tests. There was no difference in adaptation for the different resin cements (p = .438). EDC presented better adaptation when compared to the groups treated with DW and CHI (p < .001), while the CHI and DW presented similar adaptation values (p = .365). No difference was observed in the perimeter referring to the gap areas for the different resin cements (p = .510). EDC showed a lower percentage of perimeters with gaps when compared to CHI (p < .001), with the percentage of perimeter with gaps of teeth treated with CHI being lower than DW (p < .001). A positive correlation coefficient equal to 0.763 was obtained between the perimeter with gaps and the adaptation data of the adhesive interface (p < .001). EDC resulted in better adaptation of the adhesive interface and a lower percentage of perimeters with gaps compared to chitosan.

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Bond strength of fiber posts to the root canal: Effects of anatomic root levels and resin cements

Cited by 31 publications

References 38 publications

Comparison of Resin Cement Insertion Techniques for Luting Fiberglass Posts

Comparison of Resin Cement Insertion Techniques for Luting Fiberglass Posts

Push-Out Bond Strength of Different Esthetic Posts an in Vitro Study

Analysis of the adhesive interface of dentine treated with carbodiimide and chitosan before cementation of fiberglass posts with different resin cements

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