Corono‐apical leakage of various root filling materials using two different penetration models—A 3‐month study

Keçeci, Ayşe Diljin; Kaya, Bulem Üreyen; Bellí, Sema

doi:10.1002/jbm.b.31513

Cited by 8 publications

(7 citation statements)

References 38 publications

(90 reference statements)

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“…The sealing qualities of the test materials were recorded following the progress of a tiny air bubble travelling within a 25‐μL glass capillary tube (Microcaps; Fisher Scientific, Philadelphia, PA, USA). The methodology and set‐up for the fluid transport model have been described elsewhere (Kececi et al. 2010).…”

Section: Methodsmentioning

confidence: 99%

“…The sealing qualities of the test materials were recorded following the progress of a tiny air bubble travelling within a 25-lL glass capillary tube (Microcaps; Fisher Scientific, Philadelphia, PA, USA). The methodology and set-up for the fluid transport model have been described elsewhere (Kececi et al 2010). To estimate the fluid movement through the root fillings, 0.2 bar water pressure was applied to the roots for 24 h during the third day after the root filling procedure, and fluid flow was measured continuously.…”

Section: Fluid Transport Modelmentioning

confidence: 99%

See 1 more Smart Citation

The impact of root dentine conditioning on sealing ability and push-out bond strength of an epoxy resin root canal sealer

Neelakantan

Subbarao

De‐Deus

et al. 2011

International Endodontic Journal

302

186

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AH Plus appears to bond to the organic phase of dentine. This bond influences its sealing ability.DOI: https://doi.org/10.1111/j. 1365-2591.2010.01848.x Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-50248 Accepted Version Originally published at: Neelakantan, P; Subbarao, C; Subbarao, C V; De-Deus, G; Zehnder, Matthias (2011). The impact of root dentine conditioning on sealing ability and push-out bond strength of an epoxy resin root canal sealer. International Endodontic Journal, 44 (6) AbstractAim To investigate the impact of dentine conditioning on sealing ability and dentine bond strength of an epoxy resin sealer.Methodology Root canals in 90 single-rooted teeth were instrumented using a rotary Ni-Ti system. Fifty canals were irrigated with water during instrumentation, 40 with 3% NaOCl. A final flush was performed in the water-irrigated specimens with water (negative control), 3% NaOCl, 17% EDTA, 7% maleic acid (MA), or 2% chlorhexidine. The hypochlorite irrigated specimens received a final flush with a decalcifying agent (EDTA or MA) and then 3% NaOCl or 3% NaOCl and then the decalcifying agent (n = 10, each). Canals were all filled with AH Plus. Fluid transport was measured on day 3 and 30. Roots were then sectioned, and push-out tests were performed in coronal, middle, and apical root thirds. Results were analyzed using analysis of variance (ANOVA) with Bonferroni's adjustment. Spearman's rank correlation was computed between fluid transport and push-out bond strength.Results Leakage decreased over time (P < 0.05). Push-out bond strength was highest in coronal and lowest in apical root thirds. Irrigating protocols with final application of a decalcifying agent resulted in a fold decrease in leakage and increase push-out bond strength values. If NaOCl was applied last, the effect of the decalcifying agent was abolished.Chlorhexidine had no impact on the outcomes. Fluid transport and push-out bond strength correlated strongly (rho = -0-83).Conclusions AH Plus appears to bond to the organic phase of dentine. This bond influences its sealing ability.2

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Section: Methodsmentioning

confidence: 99%

Section: Fluid Transport Modelmentioning

confidence: 99%

The impact of root dentine conditioning on sealing ability and push-out bond strength of an epoxy resin root canal sealer

Neelakantan

Subbarao

De‐Deus

et al. 2011

International Endodontic Journal

302

186

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“…Despite its limitations and its labor- and time-consuming character, the glucose penetration test has been used by many researchers [ 22 , 23 , 26 , 27 ]. Its great advantage is also that leakage measurements can be made at any time intervals determined by the investigator.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Sealing Ability of Three Obturation Techniques Using a Glucose Leakage Test

Olczak

Pawlicka

2017

BioMed Research International

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The aim of this study was to evaluate the sealing ability of three different canal filling techniques. Sixty-four roots of extracted human maxillary anterior teeth were prepared using ProTaper® rotary instruments. The specimens were then randomly divided into 3 experimental groups (n = 16) and 2 control groups (n = 8). The root canals were filled using cold lateral compaction (CLC group), continuous wave condensation technique using the Elements Obturation Unit® (EOU group), and ProTaper obturators (PT group). For the negative control group, 8 roots were filled using lateral compaction as in the CLC group, and the teeth were covered twice with a layer of nail varnish (NCG group). Another 8 roots were filled using lateral compaction, but without sealer, and these were used as the positive control (PCG group). A glucose leakage model was used for quantitative evaluation of microleakage for 24 hours and 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 weeks. No significant difference in the cumulative amount of leakage was found between the three experimental groups at all observation times. The lateral condensation of cold gutta-percha can guarantee a similar seal of canal fillings as can be achieved by using thermal methods, in the round canals.

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“…The advantage of this method is the ability to perform continuous quantitative microleakage analysis as such methods are rare in root canal filling materials (Kim et al, 2015;Jang et al, 2010). Shemesh et al (2007) and Kececi et al (2010) reported that the glucose penetration model seemed to have a superior sensitivity to measure the sealing ability of root canal filling material than the fluid penetration model. The choice of tracer material should be carefully chosen because its size and physicochemical properties may influence the result.…”

Section: Discussionmentioning

confidence: 99%

Quantitative microleakage analysis of root canal filling materials in single‐rooted canals

Kim

et al. 2015

Scanning

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The purpose of this study was to analyze the sealing ability of different root canal filling materials over a 6-week period using a glucose penetration model. Forty-six recently extracted human premolars were used in this study. The root canals were enlarged to 40/0.06. Prepared canals were randomly assigned into four groups (n = 10) as follows: Group 1, Gutta-Percha (GP)/AH Plus with cold lateral compaction; Group 2, GP/AH Plus with continuous wave compaction; Group 3, RealSeal SE obturation system; and Group 4, OrthoMTA. The remaining specimens were used as positive and negative controls, and all specimens underwent thermocycling (10,000; 5-55 °C). The sealing ability of all samples was evaluated at 24 h, 1, 2, 4, and 6 weeks using a quantitative glucose leakage model, and scanning electron microscope (SEM) images were taken. A mixed effect analysis using R statistical language was performed. Groups 1, 2, and 4 showed low leakage levels during experimental periods. Group 3 showed low leakage levels for the first 2 weeks; however, the leakage level was significantly increased after 2 weeks compared to negative control group (p < 0.05). In the SEM results, Group 3 showed imperfect dentin bonding, whereas Group 4 showed calcium silicate hydrate short tags, which are formed at the access of the dentin tubules. GP/AH Plus and OrthoMTA showed less microleakage than RealSeal SE obturation system when used as root canal filling materials. Traditional GP/AH Plus sealer and the newly developed OrthoMTA are more appropriate for ideal sealing of the root canals.

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Corono‐apical leakage of various root filling materials using two different penetration models—A 3‐month study

Cited by 8 publications

References 38 publications

The impact of root dentine conditioning on sealing ability and push-out bond strength of an epoxy resin root canal sealer

The impact of root dentine conditioning on sealing ability and push-out bond strength of an epoxy resin root canal sealer

Evaluation of the Sealing Ability of Three Obturation Techniques Using a Glucose Leakage Test

Quantitative microleakage analysis of root canal filling materials in single‐rooted canals

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