Influence of Endodontic Irrigants on Resin Sealer Bond Strength to Radicular Dentin

Rocha, Aline Wunderlich; Andrade, Cintia Dickel de; Leitune, Vicente Castelo Branco; Collares, Fabrício Mezzomo; Samuel, Susana Maria Werner; Grecca, Fabiana Soares; Figueiredo, José Antônio Poli de; Santos, Regis Burmeister dos

doi:10.2209/tdcpublication.53.1

Cited by 37 publications

(36 citation statements)

References 18 publications

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“…[22] Similar effect was noted for maleic acid. [22] Also this time interval most closely relates to the one suited for clinical situation.…”

Section: Discussionsupporting

confidence: 60%

“…[20] AH plus sealer was used for the current study in spite of availability of various newer sealers in the market, it is because AH plus sealer has been shown to have the highest bond strength to root dentin [21] , the reasons quoted for the same are that it is an epoxy resin-based sealer which form covalent bonds with root dentin due to opening of its epoxide ring that has no photo polymerisation system in its composition, thus undergoing homogeneous polymerisation with greater bond strength as compared to other monoblock systems. [22] Also the chemical polymerisation is a slow process which allows for adequate shrinkage stress relaxation in AH Plus sealer.…”

Section: Discussionmentioning

confidence: 99%

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The effect of different irrigating solutions on the push out bond strength of endodontic sealer to dentin and assessing the fracture modes: An In-vitro study

Shivanna¹

2014

J Int Clin Dent Res Organ

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obturation serves to lubricate the dentinal wall, flush out debris, [7] dissolve organic and inorganic components of the smear layer to clean dentine surface, [8] and improve the bonding ability of resin-based sealers. But studies have shown that these irrigants may alter the chemical composition of the dentin surface, dentin permeability, wettability, or extent of collagen degradation, thus altering the interaction of the dentin with the resin-based sealer. [9] Sodium hypochlorite is the most essential irrigant due to its ability to dissolve pulp tissue and anti-microbial effect but also it decreases the bond strength [10] so in addition, the use of a chelating agent like EDTA is needed for smear layer removal. [11] In endodontics, 7% maleic acid and 10% citric acid has been shown to be effective in removing smear layer due to the low ph. [12] Recently, EDTA-based formulations have been developed as final rinse solutions, such as smear clear (Sybron Endo, Orange, CA) [13,14] containing EDTA, detergent, and cetrimide. This irrigant was specifically designed for the smear layer Access this article online Website: www.jicdro.org ABSTRACT Aim: To evaluate the effect of smear clear, 7% maleic acid, 10% citric acid, and 17% EDTA on the push-out bond strength of epoxy resin-based endodontic sealer to dentin. Materials and Methodos: Fifty extracted mandibular premolars were collected. After decoronation using a diamond disc and water spray to obtain approximately 14 mm long root segments, canal patency and working length were established by inserting K file #15 (Mani). The root canals were enlarged using Protaper nickel-titanium rotary instruments to size #F3 at the working length irrigating with 3 mL of 2.6% sodium hypochlorite between each file size. The roots were then randomly divided into four groups (n = 10) according to the final irrigation regimen Group1: Saline (control). Group 2: 17% EDTA, Group 3: 7% maleic acid, Group 4: 10% citric acid, Group 5: Smear clear. Obturation was done using gutta-percha with AH Plus sealer. Each root section was then subjected to a compressive load via a universal testing machine, to measure the push out bond strength followed by assessment of fracture pattern under stereomicroscope. Results: The data was collected and submitted to statistical analysis by one-way analysis of variance (ANOVA) test. Group 3: NaOCl/maleic acid/distilled water showed greater bond strength (2.2+/-0.278 MPa) as compared to other groups. Mixed type of bond failure was predominant. Conclusion: Removal of smear layer with maleic acid as a final rinse enhanced the adhesive ability of AH plus sealer, followed by EDTA and smear clear.

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“…[22] Similar effect was noted for maleic acid. [22] Also this time interval most closely relates to the one suited for clinical situation.…”

Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 99%

The effect of different irrigating solutions on the push out bond strength of endodontic sealer to dentin and assessing the fracture modes: An In-vitro study

Shivanna¹

2014

J Int Clin Dent Res Organ

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“…It may cause discoloration [ 40 ] and has unpleasant odor. When NaOCl is used as a fi nal rinse, bonding of the sealer to the dentin may be altered [ 72 ].…”

Section: Limitationsmentioning

confidence: 99%

Update of Endodontic Irrigating Solutions

Basrani¹,

Malkhassian²

2015

Endodontic Irrigation

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Successful root canal therapy depends on thorough debridement of pulpal tissue, dentin debris, and infective microorganisms. Currently, it is impossible to predictably eradicate intraradicular infection with mechanical instrumentation alone. Therefore, irrigants are required to be used as an important addition in the disinfection process. This chapter analyzes the main irrigating solutions used during the endodontic treatment and their actions and interactions among them. Explanation of their mechanism of action and effect on dentin structure and on biofi lm is also described. A clinical protocol is proposed at the end of the chapter.The goal of endodontic treatment is to prevent or cure apical periodontitis. Apical periodontitis is an infl ammatory process in the periradicular tissues caused by microorganisms in the infected root canal [ 84 ]. It is well known that shaping, cleaning, and obturating the root canal system provide the strategy for successful treatment. The principle to reach favorable outcomes in endodontic infection management requires the recognition of the problem and the removal of the etiological factors.In endodontic disinfection, there are two main challenges which are important to be recognized the anatomical challenge and the microbiological challenge [ 42 ].The anatomical challenge can be divided into complexity of the root canal system, dentin structure, and dentin constituents. Anatomical Complexities (also see Chap. 2 ):Root canal is an enclosed complex space with intricate confi gurations and apical constriction it is important to mention here that more than 35 % of the root canal surface is left untouched by conventional instrumentation [ 35 , 64 ] (Fig. 5.1 ). Also, common instrumentation techniques accumulate debris in isthmus areas. Paque et al. showed explained that when rotary fi les are used in canal with a round cross section, the dentine particles that are cut from the canal wall are car-

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“…1,8 The most popular irrigating solution is sodium hypochlorite (NaOCl). It is an effective antimicrobial agent and an excellent organic solvent for vital, necrotic and fixed tissues.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Influence of Endodontic Irrigants on Fracture Resistance of Endodontically Treated Teeth Obturated with Resilon Epiphany

Pr¹,

N²,

S³

et al. 2014

IOSRJDMS

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Influence of Endodontic Irrigants on Resin Sealer Bond Strength to Radicular Dentin

Cited by 37 publications

References 18 publications

The effect of different irrigating solutions on the push out bond strength of endodontic sealer to dentin and assessing the fracture modes: An In-vitro study

The effect of different irrigating solutions on the push out bond strength of endodontic sealer to dentin and assessing the fracture modes: An In-vitro study

Update of Endodontic Irrigating Solutions

Evaluation of Influence of Endodontic Irrigants on Fracture Resistance of Endodontically Treated Teeth Obturated with Resilon Epiphany

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