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[This article belongs to Volume - 70, Issue - 12]
Published on : 2025-12-16 23:10:19
Article Code: AMJ-16-12-2025-12359
Title : Comparative Evaluation of coronal and apical sealing ability of three different types of sealers with single cone obturation technique (In-vitro study)
Author(s) : Miller Alabdalla, Monzer Haddad
Abstract :
Introduction: The single cone obturation technique is one of the widely used root canal filling techniques due to its
simplicity and time efficiency. However, this technique requires a larger amount of sealer compared to other filling
techniques, making it necessary to have a sealer with suitable physical and chemical properties to achieve an effective
seal when filling the root canal using the single cone technique.
Objective: This experimental study aims to compare three different types of sealers (Endosequence BC, GuttaFlow
Bioseal, and Adseal) in terms of their ability to achieve coronal and apical seals when filling the root canal using the
single cone obturation technique. The study used the dye penetration test to assess the sealing ability.
Methodology: The study included 75 extracted human mandibular premolars: 30 for coronal and 30 for apical
leakage assessment, each divided into three sealer subgroups (n = 10), plus a positive control (n = 10; 5 per leakage
type) and a negative control (n = 5). Teeth were decoronated, standardized, prepared to size 30/4% with rotary files,
and filled using the single-cone technique with matching gutta-percha. After 48 h of sealer setting, specimens were
immersed in 1% methylene blue for 72 h, rinsed, sectioned bucco-lingually, and dye penetration was quantified using
ImageJ.
Results: In the coronal leakage study, Adseal sealer demonstrated the lowest coronal leakage, followed by GuttaFlow
Bioseal, with no significant statistical difference between them. Endosequence BC sealer showed the highest coronal
leakage. In the apical leakage study, Endosequence BC sealer showed the least apical leakage, followed by GuttaFlow
Bioseal, with no significant statistical difference between them, and Adseal demonstrated the highest apical leakage.
Conclusions: Coronal sealing ability was superior with the epoxy resin-based sealer (Adseal), followed by GuttaFlow
Bioseal, with EndoSequence BC exhibiting the highest coronal leakage. Apical sealing ability was superior with the
bioceramic sealer (EndoSequence BC), followed by GuttaFlow Bioseal, whereas Adseal demonstrated the highest
apical leakage. GuttaFlow Bioseal demonstrated consistent performance in both coronal and apical regions,
highlighting its reliability as an alternative material.