Comparison of Sealer Penetration  by Using Different Irrigation  Techniques – An In-vitro Study

Ismail, Prabu Mahin Syed; Ahamed, S.G. Wasim; Sabiha, P B; Sekhar, M Chandra; Moosani, Gopikrishna; Reddy, Sainath; Reddy, N Simhachalam; Sumanthi, C H

doi:10.7860/jcdr/2016/22176.9055

Cited by 6 publications

(8 citation statements)

References 30 publications

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“…This was probably due to differences in the structure, width and length of the dentinal tubules in different sections of the root canal and a consequence of the varying effectiveness of the irrigation and activation of agents used in the chemical preparation of the root canals. Such a relationship has also been observed in similar studies (2,5,9–13,17,18,25).…”

Section: Discussionsupporting

confidence: 84%

“…The sealer penetrating into the dentinal tubules also acts as a mechanical blockage that increases the obturation material's retention up to the canal walls (6,7). The depth penetration of sealer into the dentinal tubules indicates, among other things, how effectively the smear layer has been removed (2,(5)(6)(7)(8)(9)(10)(11)(12)(13). The depth of sealer penetration in dentine tubules may depend on the kind of solution applied at the end of the irrigation protocol (13).…”

Section: Introductionmentioning

confidence: 99%

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The impact of irrigation protocols on epoxy sealer penetration depth in dentinal tubules. Study involving laser confocal microscopy

Wilkoński¹,

Jamróz-Wilkońska²,

Kępczyński

et al. 2021

Aust Endodontic J

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The aim was to assess the impact of irrigation protocols ended with ethanol or chlorhexidine on AH Plus penetration into dentinal tubules. 45 root canals were prepared to ISO 40/04, divided into three groups and irrigated with three protocols: Group 1 (control): 5.25% NaOCl; Group 2: 40% CA (citric acid), 5.25% NaOCl, 40% CA, water, ethanol; Group 3: 40% CA, 5.25% NaOCl, 40% CA, water, 2% chlorhexidine. Canals were filled using vertical condensation technique with gutta-percha and fluorescein-stained AH Plus sealer. After 72 h, 1 mm thick cross-sections were cut at 2, 5, 8 mm from the apex. Confocal laser microscope was used to measure the sealer penetration into dentinal tubules. Mean depth of sealer penetration (in micrometres) was 107, 131, 170 (Group 1); 146, 233, 317 (Group 2); 185, 301, 542 (Group 3); in apical, middle and coronal parts, respectively. Irrigation protocol ended with chlorhexidine resulted in the deeper sealer penetration compared with alcohol.

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

The impact of irrigation protocols on epoxy sealer penetration depth in dentinal tubules. Study involving laser confocal microscopy

Wilkoński¹,

Jamróz-Wilkońska²,

Kępczyński

et al. 2021

Aust Endodontic J

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“…This would suggest that each technique is suited for a specific region of the canal and a combination of agitation methods may be required to achieve the maximum irrigant penetration across the entire length of the root canal. Data reported by Spoorthy et al (2013) and Ismail et al (2016) support this hypothesis as they found deeper infiltration of irrigants and sealers, respectively, when several agitation techniques were used in a single canal. Further investigations are, however, required to identify the most efficacious combination of agitation techniques.…”

Section: Discussionmentioning

confidence: 71%

The influence of irrigant activation, concentration and contact time on sodium hypochlorite penetration into root dentine: an ex vivo experiment

et al. 2020

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Aim To establish whether irrigant activation techniques, namely manual dynamic activation (MDA), passive ultrasonic irrigation (PUI) and sonic irrigation (SI), improve the tubular penetration of sodium hypochlorite (NaOCl) into root dentine when compared with conventional needle irrigation (CNI). Secondly, investigate if increasing NaOCl concentration and/or contact time improves the performance of these techniques. Methodology A total of 83 extracted human maxillary permanent canines were decoronated to 15 mm, and root canals prepared to a size 40, .10 taper. Root dentine was stained with crystal violet for 72 h and embedded in silicone. Eighty specimens were randomly distributed into 16 groups (n = 5) according to the irrigant activation technique, NaOCl concentration (2%; 5.25%) and irrigant contact time (10 min; 20 min). All activation techniques were used for 60 s in the last minute of irrigation. Additionally, three teeth were not exposed to NaOCl to confirm adequate dentine staining had occurred (i.e. negative control). All specimens were subsequently dissected, observed under a light microscope and NaOCl penetration depth (µm) determined by measuring the average width of bleached dentine using ImageJ software. Statistical comparisons were made with paired and unpaired t‐tests, anovas followed by post hoc Tukey’s and Dunnett’s tests, and a general linear model (α < 0.05). Results Overall, NaOCl penetration ranged from 38.8 to 411.0 µm with MDA, PUI and SI consistently resulting in significantly greater tubular infiltration than CNI (P < 0.05). The deepest measurements in the coronal, middle and apical segments were all recorded in the MDA; 5.25%; 20 min group and the least in the CNI; 2%; 10 min group. Increasing either irrigant concentration or contact time resulted in significantly greater NaOCl penetration depths for all techniques and segments of the canal (P < 0.05). However, when irrigant concentration and contact time were increased together, a significant interaction effect between these two independent variables was observed on overall NaOCl penetration (P < 0.05). Conclusions Agitating irrigants with MDA, PUI or SI, as well as using greater irrigant concentrations or contact times, potentiated NaOCl penetration into root dentine. However, longer durations of NaOCl exposure at lower concentrations resulted in similar depths of tubular penetration as those achieved at higher concentrations.

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“…The key objective of root canal therapy is to remove microorganisms out of the root canal system to prevent recontamination. However, due to the root canal system's complex anatomical structure, it is impossible to ensure complete cleaning of the root canal using only instrumentation methods [ 1 ]. Microorganisms may be present in the root canal even after biomechanical procedures [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Final Irrigation Regimens on the Dentinal Tubule Penetration of Three Different Root Canal Sealers: A Confocal Laser Scanning Microscopy Study In Vitro

et al. 2021

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This study evaluated the effects of different final irrigation regimens on the dentin tubule penetration of three different root canal sealers using confocal laser scanning microscopy (CLSM). A total of 160 single-rooted extracted mandibular premolar teeth were divided into five groups ( n = 32 each) according to the solution used in the final rinse protocol, as follows: 17% ethylenediaminetetraacetic acid (EDTA) (group 1), 17% EDTA and 2% chlorhexidine gluconate (CHX) (group 2), 7% maleic acid (MA) (group 3), 7% MA and 2% CHX (group 4), and 5.25% NaOCl (group 5). Two roots from each group were examined under scanning electron microscopy (SEM) to visualize smear layer removal. Experimental groups were then split randomly into three subgroups ( n = 10 ) and obturated using a cold lateral condensation technique with 0.1% rhodamine B-labelled sealers [either AH Plus (group A), EndoREZ (group E), or Tech BioSealer Endo (group T)] and gutta-percha. Specimens were sectioned and observed by CLSM to evaluate the percentage and maximum depth of sealer penetration at the apical, middle, and coronal levels. Statistical comparison was performed on grouped (apical, middle, and coronal segments) and ungrouped data using two-way ANOVA with Bonferroni post hoc test ( p < 0.01 ). AH Plus showed the greatest tubule penetration while Tech BioSealer Endo showed the least. Resin-based sealers displayed deeper and more consistent penetration. CHX irrigation positively influenced sealer tubule penetration.

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Comparison of Sealer Penetration by Using Different Irrigation Techniques – An In-vitro Study

Cited by 6 publications

References 30 publications

The impact of irrigation protocols on epoxy sealer penetration depth in dentinal tubules. Study involving laser confocal microscopy

The impact of irrigation protocols on epoxy sealer penetration depth in dentinal tubules. Study involving laser confocal microscopy

The influence of irrigant activation, concentration and contact time on sodium hypochlorite penetration into root dentine: an ex vivo experiment

The Effect of Different Final Irrigation Regimens on the Dentinal Tubule Penetration of Three Different Root Canal Sealers: A Confocal Laser Scanning Microscopy Study In Vitro

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