Various irrigation protocols for final rinse to improve bond strengths of fiber posts inside the root canal

Bitter, Kerstin; Hambarayan, Ani; Neumann, Konrad; Blunck, Uwe; Sterzenbach, Guido

doi:10.1111/eos.12057

Cited by 58 publications

(67 citation statements)

References 29 publications

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“…In general, specimens that had the dentin surface treated with NaOCl alone presented the lowest BS. These findings are consistent with those of other studies, 36,37 which revealed that pre-treatment of dentin with EDTA increased the BS of self-etch adhesive systems. In fact, NaOCl alone does not remove the smear layer, 38 maintaining the dentinal tubules closed and impeding penetration of the luting cement, and so the combination of NaOCl and EDTA is the main indication to remove remaining organic and inorganic matter.…”

Section: A B C D E Fsupporting

confidence: 93%

“…26 These differences could be attributed to particular features of the dentin substrate or even to the incomplete removal of demineralized collagen zone due to low concentration of the solution and or insufficient application time. 36 In the present study, EDTA was applied for 20s, based on Calt & Serper, 40 who showed that the application of the chelating agent over 1 min promotes erosion of peritubular dentin. A 2.5% NaOCl solution was applied for 1 min and probably this concentration was not sufficient to remove the demineralized collagen zone.…”

Section: A B C D E Fmentioning

confidence: 88%

“…These results are consistent with those of studies that investigated BS and failure mode after the displacement of different self-etch and self-adhesive resin cements from root dentin. 36 Regarding dentin microhardness, the three treatment protocols differed significantly from each other. The use of NaOCl+EDTA with ultrasonic activation followed this combination without activation produced a greater decrease of dentin microhardness than the use of NaOCl alone, which is explained by the excellent chelating action of EDTA.…”

Section: A B C D E Fmentioning

confidence: 97%

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Influence of root dentin treatment on the push-out bond strength of fibre-reinforced posts

et al. 2017

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Influence of root dentin treatment on the push-out bond strength of fibre-reinforced posts Abstract: This study evaluates the influence of root dentin treatment with NaOCl alone and combined with EDTA, with and without ultrasound activation, on the push-out bond strength (BS) of fiber-reinforced posts in weakened roots, cemented with RelyX or Panavia. The root canals of 42 maxillary canines were instrumented with Reciproc and 2.5% NaOCl. In the coronal 12mm of all canals, experimental weakening of the roots was produced by reducing dentin thickness with 2.44mm diameter diamond burs. The roots were assigned to 3 groups (n = 14) according to root dentin treatment: 2.5% NaOCl; 2.5% NaOCl + 17% EDTA; and 2.5% NaOCl + 17% EDTA, with solutions agitated using passive ultrasonic irrigation. After cementation of the fiber-reinforced posts the roots were divided in thirds. The first slice of each third was used for the push-out BS test, the second slice for confocal laser scanning microscopy and dentin microhardness (Knoop) analysis. Data were analysed by a two-way ANOVA and Tukey test (a = 0.05). NaOCl + EDTA provided highest BS values than NaOCl (p < 0.0001). Specimens cemented with Panavia presented significantly higher BS than those with RelyX in the three root thirds (p < 0.0001). The highest BS values occurred in the cervical third (p < 0.001). Ultrasound-activated NaOCl + EDTA promoted the greatest reduction in dentin microhardness, followed by NaOCl/EDTA and NaOCl. Ultrasonic activation of NaOCl and EDTA reduced root dentin microhardness, but did not improve the push-out BS of resin-based cements. Panavia presented higher BS than RelyX. RelyX was not influenced by the root dentin treatment protocols.

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Section: A B C D E Fsupporting

confidence: 93%

Section: A B C D E Fmentioning

confidence: 88%

Section: A B C D E Fmentioning

confidence: 97%

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Influence of root dentin treatment on the push-out bond strength of fibre-reinforced posts

et al. 2017

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“…The characteristics of the 9 included studies are summarized in Table 1. 8,17,19,23,24,25,26,27,28 Eleven studies that did not meet the inclusion criteria ( Figure 1) To investigate the effect of QMix irrigant compared with several other irrigating solutions on the bond strength of glass fibre posts to root dentine and on smear layer removal after post space preparation.…”

Section: Resultsmentioning

confidence: 99%

“…15 Moreover, activation methods of irrigation solutions have been used as an additional method to increase their effectiveness, such as the use of ultrasonic systems and laser devices. 16,17,18 Despite the large number of in vitro studies in the literature, there is currently no consensus on the best solution for removing debris after post-space preparation, while it remains unclearif this can affect the bond strength of FGPs to root dentin. 19 Therefore, the objective of this study was to systematically review the literature using in vitro studies to investigate if cleaning methods of root canal after post-space preparation can increase the retention of FGPs evaluated by push-out test.…”

Section: Introductionmentioning

confidence: 99%

Can intra-radicular cleaning protocols increase the retention of fiberglass posts? A systematic review

et al. 2018

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The presence of residues within the root canal after post-space preparation can influence the bond strength between resin cement and root dentin when using fiberglass posts (FGPs). Currently, there is no consensus in the literature regarding what is the best solution for the removal of debris after post-space preparation. This systematic review involved "in vitro" studies to investigate if cleaning methods of the root canal after post-space preparation can increase the retention of FGPs evaluated by the push-out test. Searches were carried out in PubMed (MEDLINE) and Scopus databases up to July2017. English language studies published from 2007 to July 2017 were selected. 475 studies were found, and 9 were included in this review. Information from the 9 studies were collected regarding the number of samples, storage method after extraction, root canal preparation, method of post-space preparation, endodontic sealer, resin cement, cleaning methods after post-space and presence of irrigant activation. Five studies presented the best results for the association of sodium hypochlorite (NaOCl) and ethylenediamine tetra-acetic acid (EDTA), while in the other 4 studies, the solutions that showed improved retention of FGPs were photoninduced photoacoustic streaming (PIPS), Qmix, Sikko and EDTA. The results showed heterogeneity in all comparisons due to a high variety of information about cleaning methods, different concentrations, application time, type of adhesive system and resin cements used. In conclusion, this review suggests that the use of NaOCl/EDTA results in the retention of FGPs and may thus be recommended as a post-space cleaning method influencing the luting procedure.

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Effect of pretreatment with matrix metalloproteinase inhibitors on the durability of bond strength of fiber posts to radicular dentin

Ghazvehi

Saffarpour

Habibzadeh

2022

Clinical & Exp Dental Res

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Objectives Application of matrix metalloproteinases inhibitors has been suggested to improve the durability of resin–dentin bonding. The purpose of this study was to evaluate the effect of dimethyl sulfoxide (DMSO), carbodiimide (EDC), and chlorhexidine (CHX) treatment on the push‐out bond strength of fiber posts to radicular dentin. Materials and Methods 24 extracted premolars were assigned randomly to 4 groups after root canal treatment and post space preparation (n = 6). In the first, second, and third groups, radicular dentin was treated with 1 ml of 5% DMSO, 0.3 M EDC, and 2% CHX, respectively. The fourth group (control) received no treatment. The root canals were primed with ED primer II, and the fiber posts were cemented with Panavia F2.0. In each group, half of the specimens were subjected to the push‐out test and the other half to 3000 thermal cycles before testing. Data were analyzed using two‐way analysis of variance via SPSS version 20 (p < .05). Results Among the nonthermocycled specimens, the values of push‐out bond strength were observed in the control, EDC, CHX, and DMSO groups, in decreasing order. Among the thermocycled specimens, the values were observed in the control, EDC, DMSO, and CHX groups in decreasing order. Thermocycling had a significant adverse effect on the push‐out bond strength (p = .015), but the effect of material (p = .375), and the interaction effect of material and thermocycling (p = .998) were not significant. Conclusions Application of CHX, DMSO, and EDC had no significant effect on the bond strength of fiber posts to radicular dentin.

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Various irrigation protocols for final rinse to improve bond strengths of fiber posts inside the root canal

Cited by 58 publications

References 29 publications

Influence of root dentin treatment on the push-out bond strength of fibre-reinforced posts

Influence of root dentin treatment on the push-out bond strength of fibre-reinforced posts

Can intra-radicular cleaning protocols increase the retention of fiberglass posts? A systematic review

Effect of pretreatment with matrix metalloproteinase inhibitors on the durability of bond strength of fiber posts to radicular dentin

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