Active application of liquid etching agent improves adhesion of fibre posts to intraradicular dentine

Scotti, Nicola; Scansetti, Marco; Rota, Riccardo; Breschi, Lorenzo; Mazzoni, Annalisa; Pasqualini, Damiano; Berutti, Elio

doi:10.1111/iej.12096

Cited by 22 publications

(30 citation statements)

References 28 publications

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“…19 The partial or total debris removal previous to resin cement insertion into the root canals might improve post retention and, consequently, the bond strength. 34 Acidic solutions such as EDTA have shown good results in removing the smear layer but do not adequately demineralize dentin or enhance the contact of the self-adhesive resin cements with dentin. 45 In contrast, NaOCl solution alone partially removes the smear layer, causing removal of dentinal proteins and making the dentin surface hydrophilic, which could impair resin cement polymerization.…”

Section: Discussionmentioning

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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Section: Discussionmentioning

confidence: 99%

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

et al. 2018

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Section: Introductionmentioning

confidence: 99%

“…Fiber posts are widely used to regain the functional requirements of the tooth [1][2][3]. Both cementation and bonding of dentine to fiber posts are important factors for the longevity of restorations [1,4]. Previous investigations showed that clinically sufficient post retention was affected by several factors on the dentine surface [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Effect of different irrigant activation protocols on push-out bond strength

Ekim

Erdemir

2015

Lasers Med Sci

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The study aimed to evaluate the effect of various final irrigant activation protocols on push-out bond strength of fiber post. Thirty-two single-rooted human maxillar central teeth were sectioned below the cementoenamel junction, instrumented and obturated. Post-space preparation was performed, and roots were randomly divided into eight groups (n = 4) according to the final irrigant activation protocols; distilled water was used as an irrigant in group 1. The other groups were treated with 2.5% NaOCl and 17% EDTA. Conventional syringe irrigation (CSI, no activation) was used in group 2. Irrigation solutions were activated using passive ultrasonic irrigation (PUI, group 3), EndoVac apical negative pressure (ANP, group 4), diode laser (group 5), neodymium:yttrium-aluminum-garnet (Nd:YAG) laser (group 6), erbium:yttrium-aluminum-garnet (Er:YAG) laser (group 7), and Er:YAG laser using with photon-induced photoacoustic streaming (PIPS™) technique (group 8). In all groups, fiber posts (White Post DC, FGM) were luted using Panavia F 2.0 (Kuraray, Osaka, Japan). The specimens were transversally sectioned, and all slices from coronal and apical regions were subjected to push-out tests. The data were calculated as megapascals and analyzed by using two-way analysis of variance followed by post hoc Tukey honestly significant difference (HSD) tests. Removing the smear layer increased the bond strength to dentine when compared with the control group (p < 0.05). The highest bond strength was obtained in the PIPS laser-activated irrigation group (p < 0.05). Coronal root region presented significantly higher bond strength than the apical region (p < 0.05). PIPS laser-activated irrigation showed higher efficiency as a final irrigant activation protocol on push-out bond strength of fiber post.

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“…Scotti et al 21 state that the use of liquid phosphoric acid effectively removes debris remaining after irrigation, leaving open dentinal tubules ready for the subsequent cementing of the post.…”

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confidence: 99%

Sonic versus ultrasonic activation for the cleaning of the root canal after post space preparation: an in vitro study.

Carrasco¹,

Román²,

Ojeda³

et al. 2015

Joralres

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Sonic versus ultrasonic activation for the cleaning of the root canal after post space preparation: an in vitro study. Cite as: Carrasco R, Román R, Ojeda M & Vergara C. Sonic versus ultrasonic activation for the cleaning of the root canal after post space preparation: an in vitro study. J Oral Res 2015; 4(4): 255-262.Abstract: Objective: To compare the efficacy of 3 intracanal cleaning protocols used before cementation of prosthetic posts. Material and Methods: 40 anterior teeth received endodontic treatment in hand, using lateral condensation technique. After two weeks, gutta-percha was appropriately removed from the teeth to get the necessary space to install a post. Then, teeth were randomly divided into groups; root surface was treated with chlorhexidine (CHX) activated by ultrasound (US) (group I), with chlorhexidine activated by sonic instrumentation (S) (group II), chlorhexidine without activation (group III) and without treatment (group IV). All teeth were fractured longitudinally getting 2 sections. The middle third of the root canal was microphotographed with a scanning electron microscope (SEM) and the contaminated surface was measured using detritus with ImageJ 1.47. INTRODUCTION.Endodontically treated teeth usually require a post inside the root canal to retain a coronal restoration 1 . Fiber posts offer advantages over metal posts, such as favorable fracture patterns that could be restored because they are less rigid, and because they provide an easy removal of the post from the root canal in case of repeated endodontic treatment 2 .Various resin cements are used for bonding fiber posts. The method of application involves multiple steps, and is rather complex and dependent on the technique used by the dentist, and therefore it may affect the quality of the adhesion 3 .Manufacturers suggest removing detritus or debris from tooth surfaces by using ultrasound or pumice. They also suggest keeping tooth surface clean with ethanol, citric acid, ethylenediaminetetraacetic acid (EDTA) or phosphoric acid to improve adhesion and eliminate any residue 4 .However, surface treatments with different root dentin agents can cause changes in its chemical and structural composition, which in turn, may alter its permeability and solubility characteristics 5 .It is important to have in mind that the penetration of irrigation in the canal depends on the anatomy of the root canal, on the irrigant application techniques, the volume of the solution, instrumentation of the root canal and physicochemical characteristics of the irrigant 6 . The- of the treated dentin.Cecchin et al. 7 compared bond strength and fracture patterns between experimental groups irrigated with chlorhexidine (CHX), under different application times (30, 60, and 120 seconds) and a control group irrigated with saline. Significant differences for both fracture patterns and bond strength were observed. They concluded that the use of CHX pretreatment could preserve the bond strength of the fiber post for 12 months using resin cement, regardless of the ...

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Active application of liquid etching agent improves adhesion of fibre posts to intraradicular dentine

Abstract: Liquid phosphoric acid applied with an endodontic needle yielded better canal wall smear layer removal and higher bond strength values when an etch-and-rinse system was used.

Cited by 22 publications

References 28 publications

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

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

Effect of different irrigant activation protocols on push-out bond strength

Sonic versus ultrasonic activation for the cleaning of the root canal after post space preparation: an in vitro study.

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