Influence of endodontic sealers on the bond strength of carbon fiber posts

Teixeira, Cleonice da Silveira; Pasternak-Júnior, Bráulio; Borges, Álvaro Henrique; Paulino, Silvana Maria; Sousa-Neto, Manoel Damião

doi:10.1002/jbm.b.30888

Cited by 46 publications

(41 citation statements)

References 23 publications

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“…However, in contrast to studies by Cecchin et al 20,21 , the calcium hydroxide-based sealer group in the present study was associated with lower bond strength values relative to control and resinbased sealer groups. This result, compatible with 30 is due to the composition of Sealapex, which contains isobutyl salicylate; salicylate is known to react with calcium solubilized by the dissolution of Sealpex. This results in a physiochemical barrier that can interfere with the adhesion of the resin cement.…”

Section: Discussionsupporting

confidence: 57%

“…The known mechanism of bonding is both chemical and micromechanical in self-adhesive cement as a result of the interaction between hydroxyapatite and monomer acidic groups. 30 Rathke et al 17 have published a report indicating that self-adhesive cement is associated with lower bond strength relative to conventional systems. In contrast, Bitter et al 33 reported increased bond strength relative to conventional materials using self-adhesive resin cement.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative Evaluation of Root Canal Sealers

Yeter¹,

Evcil²

2015

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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ÖZETPurpose: The present study evaluated fiber post bond strength in root dentin using various root canal sealers and resin cements. Material and Methods: After root canal preparation, teeth were divided into 5 distinct groups (Sealapex (calcium hydroxide-based); AH Plus (resin-based); Tubli-Seal (eugenol-based); BC Sealer (bioceramicbased) and No Sealer (control) according to root canal sealer used. After root filling, post space preparations were done. Five main groups were subdivided into 3 groups (self-etch, etch-and-rinse, and self-adhesive) corresponding to the resin systems applied. After post cementation, 3 slices were obtained from different regions (coronal, middle, apical) for push-out testing. SEM images of specimens were obtained to evaluate for debonding failures. Differences in bond strength were evaluated by ANOVA and Post-hoc Tukey HSD methods. Results: It was observed that in Tubli-Seal, BC Sealer and Sealapex groups the bond strength was significantly decreased (p < 0.01). No significant difference (p > 0.05) in bond strength values was observed between the AH Plus and control groups. It was also observed that the bond strength values were similar (p >0.05) in different resin cement systems. Conclusion: Root canal sealers affect bond strength between fiber posts and the root canal dentin, whereas different resin cement systems have no effect on the bond strengths. Keywords: Bond strength; fiber post; push-out; resin cement; root canal sealer. ABSTRACTAmaç: Bu çalışmada farklı kök kanal patları ve resin simanlar kullanılarak fiber postun kök dentinine olan bağlanma dayanımı değerlendirildi. Gereç ve yöntem: Kök kanal preparasyonu yapıldıktan sonra kullanılacak kök kanal patına göre dişler 5 farklı gruba (Sealapex (kalsiyum hidroksit esaslı); AH Plus (rezin esaslı); Tubli-Seal (öjenol esaslı); BC Sealer (biyoseramik esaslı) ve kontrol grubu(kök kanal patı kullanılmadan) ayrıldı. Kanal dolguları uygulandıktan sonra post boşluklarının preparasyonu gerçekleştirildi. Beş grup, post yapıştırılmasında kullanılacak rezin siman tipine göre, 3 alt gruba (self-etch, etch-and-rinse ve self adeziv) ayrıldı. Postların yapıştırılmasını takiben push-out testi için farklı bölgelerden 3 adet kesit (koronal, orta, apikal) alındı. Test uygulanan örneklerden bağlanma başarısızlıklarının değerlendirilmesi amacıyla SEM görüntüleri elde edildi. Bağlanma dayanımı farklılıkları ANOVA ve Post-hoc Tukey HSD testleri ile değerlendirildi. Bulgular: Bağlanma dayanımının Tubli-Seal, BC Sealer ve Sealapex gruplarında anlamlı derecede düşük (p<0.01) olduğu saptandı. AH Plus grubu ve kontrol grubu arasında anlamlı bir farklılık olmadığı (p>0.05) tespit edildi. Farklı resin siman sistemlerinde de bağlanma dayanımı değerlerinin benzer (p>0.05) olduğu görüldü. Sonuç: Kök kanal patları fiber post ile kök dentini arasındaki bağlanmaya etki ederken, farklı rezin siman sistemlerinin bağlanma dayanımı üzerine bir etkisi yoktu.

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Section: Discussionsupporting

confidence: 57%

Section: Discussionmentioning

confidence: 99%

Comparative Evaluation of Root Canal Sealers

Yeter¹,

Evcil²

2015

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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“…The negative effects on bond strength of several chemical agents used during root canal treatment, including endodontic irrigants (sodium hypochlorite, EDTA, and hydrogen peroxide), calcium hydroxide and eugenol of medicaments and sealers, have been well-documented (2,(19)(20)(21)(22)(23). However, few studies have assessed the influence of gutta-percha solvents on the bonding process itself (10,32).…”

Section: Discussionmentioning

confidence: 99%

“…These solvents may modify the chemical constitution of the dentin surface and affect its interaction with the restorative and root filling materials (18). The effects of several chemical agents used during endodontic therapy on the bond strength of fiberglass posts to root canal dentin have been studied (2,(19)(20)(21)(22)(23). However, studies addressing the fiberglass post bond strength to root canal dentin after root canal retreatment procedures are lacking.…”

Section: Introductionmentioning

confidence: 99%

Effect of gutta-percha solvents on fiberglass post bond strength to root canal dentin

et al. 2014

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The purpose of this study was to investigate the influence of gutta-percha solvents on the bond strength of fiberglass post to root canal dentin. Forty bovine incisors were decoronated, prepared, filled, and randomly distributed into four groups (n = 10) according to the gutta-percha solvent used: control, xylene, eucalyptol and orange oil. After root canal treatment, the posts were cemented into the prepared root canals using a resin-based cement. A micro pushout test was executed, and the patterns of failure were assessed with microscopy. The data were analyzed using two-way ANOVA followed by Tukey's test. The control group exhibited greater bond strength compared to the eucalyptol group in the cervical and middle thirds of the root (P < 0.05); however, it did not differ significantly from the xylene and orange oil groups (P > 0.05). No difference was observed in the values of the xylene, orange oil, and eucalyptol groups (P > 0.05). The cervical third had higher values than the apical third for all tested solvents (P < 0.05). Adhesive failure between resin cement and dentin was the most frequent type of failure. The use of xylene and orange oil as gutta-percha solvents did not influence the bond strength of fiberglass posts to root canal dentin. (J Oral Sci 56, 105-112, 2014)

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“…[35][36][37] The adverse effect of residual filling material on the bond strength of resin cement has been explained by the fact that longer endodontic sealer contact time with the dentin promotes high penetration of harmful agents through the dentinal tubules. 40,41 Postspace preparation might remove part of the dentin surface, but probably not enough to eliminate the excess cement from the dentinal tubules, especially in the apical third. Further, a heavy smear layer covering the tubules might adversely affect the formation of resin tags that are essential for adhesion of self-etching systems.…”

Section: Discussionmentioning

confidence: 99%

Effect of Endodontic Retreatment on Push-out Bond Strength and Quality of Fiber Postbonding Interface of Resin Cements

Kato

et al. 2016

The Journal of Contemporary Dental Practice

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Aim:The aim of this study is to evaluate the impact of endodontic retreatment on push-out bond strength and dentin interface of two resin cements used for fiber postcementation during endodontic retreatment. Materials and methods:The root canals of 40 extracted human canines were prepared, obturated and divided into four groups (n = 10). Gutta-percha was partially removed and fiber posts were immediately cemented in groups 1 and 2 using Panavia F with ED Primer and RelyX™ U200, respectively. In groups 3 and 4, the root canal access was sealed with temporary restorative cement, specimens were stored for 30 days, endodontically retreated, and fiber posts were cemented using the resin cements applied to groups 1 and 2, respectively. Push-out tests and scanning electron microscopy analyses of different areas were performed. Data from push-out bond strengths were analyzed by one-way analysis of variance and Tukey's tests. Results:Higher bond strength values were detected in the apical third for group 1 than group 3 (p < 0.05). No differences were observed in other comparisons between the same third of different groups (p > 0.05). Comparisons between different thirds in the same group revealed a higher bond strength in the apical third for group 1. Scanning electron microscopy showed formation of hybrid layer and extensive resin tags in group 1. No hybrid layer was observed in groups 2 and 4. Effect of Endodontic Retreatment on Conclusion:Endodontic retreatment had adverse effects on the push-out bond strength and dentinal interface of Panavia F with ED Primer when used for fiber postcementation specifically in the apical third, but not on RelyX™ U200.Clinical significance: A significant interaction was detected between endodontic retreatment and resin cement, which indicated that endodontic retreatment might adversely affect the push-out bond strength and dentinal interface of Panavia F with ED Primer when used for fiber postcementation specifically in the apical third.

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Influence of endodontic sealers on the bond strength of carbon fiber posts

Abstract: The use of EndoREZ sealer promoted higher bond strength in root coronal and middle portions when carbon post was fixed with a resin cement.

Cited by 46 publications

References 23 publications

Comparative Evaluation of Root Canal Sealers

Comparative Evaluation of Root Canal Sealers

Effect of gutta-percha solvents on fiberglass post bond strength to root canal dentin

Effect of Endodontic Retreatment on Push-out Bond Strength and Quality of Fiber Postbonding Interface of Resin Cements

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