Sealing Ability of Resin Based Root Canal Sealers: An In Vitro Study

Abstract

The primary goal is to attain a three dimensional seal, which would lead to an impervious seal. Obturation of the prepared root canal eliminates all avenues of leakage from the oral cavity and the periodontal tissues, sealing any residual irritants that remain within the root canal system after cleaning and shaping. Though the primary goal of obturation has been clearly defined there is still an ongoing research for a sealer and a core material that would provide an apical as well as coronal seal.

Comparison of push‐out bond strength of endodontic sealers after root canal drying with different techniques

“…The level of dentin moisture before sealer application is another influential factor on the bond strength of sealers to dentin (Nagas et al, 2012 ). Evidence shows that the residual moisture in the canal adversely affects the adhesion of resin sealers (Rijal, 2016 ). However, it does not mean that the root canal walls should be completely dried out.…”

“…Thus, drying the root canals with paper points is the most popular and simplest technique for root canal drying. According to the Marangoni conversion of the power law, ethanol increases the evaporation power of water, and evidence shows that the use of ethanol decreases the residual moisture and expedites the root canal drying process (Jang et al, 2010 ; Rijal, 2016 ). Nonetheless, mechanical devices such as EndoVac® (Paula et al, 2016 ) and air vacuum (Luer Vacuum adapter) (Nagas et al, 2012 ) have also been proposed for root canal drying.…”