Comparison of Bacterial Coronal Leakage Between Different Obturation Materials (An in Vitro Study)

Mobarak, Ahmed; Moussa, Sybel; Am, Zaazou; Abdelfattah, Hesham

doi:10.21608/adjalexu.2015.56488

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…During chemo-mechanical preparation, a layer of debris, the smear layer, is formed. This layer consists of organic and inorganic substances which include microorganisms and necrotic tissues occluding the radicular dentinal tubules [ 25 ]. Current theories regarding dentin bonding mechanisms offer to chemically modify the smear layer and directly bonding to it, or bonding to subjacent tooth structures after the removal of this layer [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

Push-Out Bond Strength and SEM Evaluation in Roots Filled with Two Different Techniques Using New and Conventional Sealers

Dabaj¹,

Kalender²,

Eldeniz

2018

Materials

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The aim of this study was to evaluate the influence of calcium-silicate-based sealer (Endosequence-BC-Sealer) in roots, filled with thermo-plasticized injectable technique aided by Calamus-Flow-Delivery-System, on bond strength to radicular dentin, in comparison with conventional epoxy-resin-based sealer (AH-Plus) along with cold-lateral-compaction technique. Root canals of mandibular-premolar teeth (n = 80) were instrumented using Protaper Universal rotary files and were randomly divided into four experimental groups (n = 20) as follows: (1) AH-Plus + cold-lateral-compaction technique; (2) Endosequence-BC-Sealer + cold-lateral-compaction technique; (3) AH-Plus + thermo-plasticized injectable technique; and (4) Endosequence-BC-Sealer + thermo-plasticized injectable technique. Horizontal disc shaped samples from each group (n = 60/group) were obtained and push-out bond strength testing was performed at a cross-head speed of 0.5 mm/min. Data were analyzed statistically using nonparametric Kruskal-Wallis analysis and Mann-Whitney test (p < 0.001). The statistical analysis revealed a significant difference amongst the groups (p < 0.001). The highest bond strength values were found in group 1 compared with all the other experimental groups (p < 0.001), whereas the lowest bond strength values were found in group 4 (p < 0.001). It was concluded that thermo-plasticized injectable technique with Calamus-Flow-Delivery-System lowered the bond strengths of the sealers, especially Endosequence-BC-Sealer. Therefore, this technique is not recommended to calcium-silicate-based sealers. Further studies are needed to confirm the findings of this study.

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Section: Discussionmentioning

confidence: 99%

Push-Out Bond Strength and SEM Evaluation in Roots Filled with Two Different Techniques Using New and Conventional Sealers

Dabaj¹,

Kalender²,

Eldeniz

2018

Materials

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Comparative evaluation of sealing ability of three bioactive obturation materials

Singla¹,

Panghal²

2021

Endodontology

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Aim: The aim of this study was to evaluate and compare the sealing ability of three obturating materials used with single-cone technique: C Point/Endosequence BC sealer, gutta-percha/Endoseal MTA and gutta-percha/GuttaFlow bioseal using bacterial leakage model with Enterococcus faecalis. Materials and Methods: Seventy-six extracted human single-rooted mandibular premolars with straight canals prepared using Hyflex CM up to 45/04 and assigned to 3 experimental groups according to the root canal filling material as Group A - C Point/Endosequence BC sealer; Group B - guttapercha/Endoseal MTA; Group C - guttapercha/GuttaFlow bioseal. Split-chamber bacterial leakage model was prepared and microleakage analysis was made every 24 h for up to 9 weeks. The presence of E. faecalis was confirmed by light microscopy and Gram staining. Results: A survival analysis was performed using Kaplan–Meier plots and a log-rank test and it was found that Group A showed the best apical seal followed by Group C and then Group B at the end of the observational period. The difference in bacterial leakage among Group A and C versus Group B was statistically significant (P < 0.05), but there was no significant difference between Group A and Group C. Conclusion: C Point/Endosequence BC sealer and GP/Guttaflow bioseal sealer has shown better apical seal with single-cone technique as compared to GP/Endoseal MTA.

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Hermetic Seal in Obturation: An Achievable Goal with Recently Introduced Cpoint

Kaur¹

2019

International Journal of Clinical Pediatric Dentistry

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Comparison of Bacterial Coronal Leakage Between Different Obturation Materials (An in Vitro Study)

Cited by 3 publications

References 27 publications

Push-Out Bond Strength and SEM Evaluation in Roots Filled with Two Different Techniques Using New and Conventional Sealers

Push-Out Bond Strength and SEM Evaluation in Roots Filled with Two Different Techniques Using New and Conventional Sealers

Comparative evaluation of sealing ability of three bioactive obturation materials

Hermetic Seal in Obturation: An Achievable Goal with Recently Introduced Cpoint

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