The sealing ability of resilon and gutta-parcha following different smear layer removal methods: an ex vivo study

Shokouhinejad, Noushin; Sharifian, Mohammad Reza; Aligholi, Marzieh; Assadian, Hadi; Tabor, Rachel K.; Nekoofar, Mohammad H.

doi:10.1016/j.tripleo.2010.02.007

Cited by 17 publications

(13 citation statements)

References 35 publications

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“…Regarding the root canal filling system (gutta percha/AH Plus and Resilon/ Real Seal Se), there was no statistically significant differences in relation to the coronal microleakage, agreeing with previous findings 4,9,26 . However, some studies reported that Resilon/Epiphany sealer was more efficient than gutta-percha/AH Plus 12,29 , whereas others found the opposite 22,27 .…”

Section: Discussionsupporting

confidence: 91%

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A microleakage study of gutta-percha/AH Plus and Resilon/Real self-etch systems after different irrigation protocols

2014

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The development and maintenance of the sealing of the root canal system is the key to the success of root canal treatment. The resin-based adhesive material has the potential to reduce the microleakage of the root canal because of its adhesive properties and penetration into dentinal walls. Moreover, the irrigation protocols may have an influence on the adhesiveness of resin-based sealers to root dentin.ObjectiveThe objective of the present study was to evaluate the effect of different irrigant protocols on coronal bacterial microleakage of gutta-percha/AH Plus and Resilon/Real Seal Self-etch systems.Material and MethodsOne hundred ninety pre-molars were used. The teeth were divided into 18 experimental groups according to the irrigation protocols and filling materials used. The protocols used were: distilled water; sodium hypochlorite (NaOCl)+eDTA; NaOCl+H3PO4; NaOCl+eDTA+chlorhexidine (CHX); NaOCl+H3PO4+CHX; CHX+eDTA; CHX+ H3PO4; CHX+eDTA+CHX and CHX+H3PO4+CHX. Gutta-percha/AH Plus or Resilon/Real Seal Se were used as root-filling materials. The coronal microleakage was evaluated for 90 days against Enterococcus faecalis. Data were statistically analyzed using Kaplan-Meier survival test, Kruskal-Wallis and Mann-Whitney tests.ResultsNo significant difference was verified in the groups using chlorhexidine or sodium hypochlorite during the chemo-mechanical preparation followed by eDTA or phosphoric acid for smear layer removal. The same results were found for filling materials. However, the statistical analyses revealed that a final flush with 2% chlorhexidine reduced significantly the coronal microleakage.ConclusionA final flush with 2% chlorhexidine after smear layer removal reduces coronal microleakage of teeth filled with gutta-percha/AH Plus or Resilon/Real Seal SE.

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Section: Discussionsupporting

confidence: 91%

“…This space can result from deficient adaptation of the filling material to the root dentin, solubility of the sealer, or sealer expansion or shrinkage. There are 2 possibilities of leakage: at the interface between the main filling material and sealer, or between the sealer and root canal wall 26 .…”

Section: Discussionmentioning

confidence: 99%

A microleakage study of gutta-percha/AH Plus and Resilon/Real self-etch systems after different irrigation protocols

2014

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“…The canals in the two groups were dried and then filled with a gutta-percha master cone coated with AH Plus root canal sealer (Dentsply DeTrey, Konstanz, Germany) employing the cold lateral compaction technique in accordance with previous studies (16)(17)(18).…”

Section: Methodsmentioning

confidence: 99%

Comparison between ultrasonic irrigation and syringe irrigation in clinical and laboratory studies

et al. 2016

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Ultrasonic irrigation and syringe irrigation were compared for their efficacy at cleaning root canal in vivo and in vitro. The in vivo study used 60 anterior teeth or premolars from 60 patients with periapical periodontitis who were randomly assigned to a syringe irrigation group (group S) or an ultrasonic irrigation group (group U). After instrumentation with a K-file using the step-back technique, the two groups received ultrasonic or syringe irrigation using 40 mL of 2.5% NaOCl respectively, followed by conventional lateral compaction. The in vitro study used 60 extracted single-canal premolars, which were also divided into U and S groups, and underwent the same irrigation and compaction. Forty of them were evaluated histologically by light microscopy, and the remaining 20 by scanning electron microscopy. No difference in main root canal filling was observed between the U and S groups. Notably, group U had a larger number of obturated lateral canals than group S. Moreover, a smaller amount of organic debris and more open dentinal tubules were observed in the root canal in group U than in group S. Our findings suggest that ultrasonic irrigation has a greater capacity to clean instrumented root canals than syringe irrigation. (J Oral Sci 58, 373-378, 2016)

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“…Similar to our results, another methacrylate resin-based obturation system (Resilon/Epiphany), including its special core and sealer, showed similar microleakage values with AH Plus and gutta-percha. 25 The lower microleakage results obtained from the EndoREZ system may be related to the use of special gutta-percha cones coated with resin, which allowed a more successful adaptation between the core material and sealer. On the contrary, use of traditional gutta-percha cones in the Hybrid Root SEAL group may have prevented the adhesive bonding between the core material and sealer.…”

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confidence: 99%

Apical microleakage of different root canal sealers after use of maleic acid and EDTA as final irrigants

et al. 2014

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This study aimed to compare the effects of ethylenediaminetetraacetic acid (EDTA) and maleic acid (MA) on the sealing ability of various root canal sealers. Eighty root canals were instrumented and irrigated with either EDTA or MA. They were divided into eight experimental groups and obturated as follows: Group 1: MA + Hybrid Root SEAL/ gutta-percha. Group 2: EDTA + Hybrid Root SEAL/gutta-percha. Group 3: MA + iRoot SP/gutta-percha. Group 4: EDTA + iRoot SP/gutta-percha. Group 5: MA + EndoREZ/EndoREZ points. Group 6: EDTA + EndoREZ/ EndoREZ points. Group 7: MA + AH Plus/gutta-percha. Group 8: EDTA + AH Plus/gutta-percha. Another ten roots were used as negative and positive controls. The microleakage of each sample was measured at 2-min intervals for 8 min using the fluid filtration method. Data were statistically analyzed with one-way ANOVA, post-hoc Tukey, and paired-samples t tests. The minimum microleakage values were obtained from the teeth obturated with AH Plus and EndoREZ selaers (p < 0.001). The samples with Hybrid Root SEAL showed the maximum leakage (p < 0.001). There were significant differences between the groups irrigated with MA or EDTA in terms of microleakage (p < 0.05). Use of MA resulted in higher microleakage values compared with those using EDTA. The type of final irrigation solution seems to influence the postobturation apical seal. Use of AH Plus and EndoREZ sealers showed better sealing ability compared with IRoot SP and Hybrid Root SEAL.

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The sealing ability of resilon and gutta-parcha following different smear layer removal methods: an ex vivo study

Cited by 17 publications

References 35 publications

A microleakage study of gutta-percha/AH Plus and Resilon/Real self-etch systems after different irrigation protocols

A microleakage study of gutta-percha/AH Plus and Resilon/Real self-etch systems after different irrigation protocols

Comparison between ultrasonic irrigation and syringe irrigation in clinical and laboratory studies

Apical microleakage of different root canal sealers after use of maleic acid and EDTA as final irrigants

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