An In vitro Study to Evaluate the Sealing Ability of Some Root Canal Obturation Materials Using Scanning Electronic Microscope

(Thuraya Azghani, Hisham Al-Afif, Canaan Elias)

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Abstract

An ideal endodontic material should adhere firmly to dentin to achieve a good canal sealing. The aim of this study was to evaluate the adhesion of the root canal filling (Activ Gp, Resilon, AH Plus and GuttaFlow) to dentin using Scanning Electronic Microscopy (SEM). The sealing ability of root canal materials to dentinal walls of the root canal was assessed in freshly extracted human single canal. Twenty teeth were prepared using rotary Protaper files to size F4, and washed with 1.3% NaOCl & MTAD as a final wash. The 20 samples were divided into four groups of five each and assigned to root filling Materials (GuttaFlow, AH plus, Activ GP and Resilon). The sealing ability and adhesion properties at the sealer-dentin interface were studied using SEM at 2mm and 5mm from the apex, and the results were rated from 1 to 3; extremely good adhesion (rated 1), good adhesion (rated 2) and relatively good adhesion (rated 3). The Kruskal-Wallis test showed no significant differences between root canal obturation material which were used in this study at 2mm and 5mm from the apex.(P<0.05). The new obturation materials, GuttaFlow, Activ GP, Resilon and AH Plus, have good sealing ability and excellent adhesion to dentinal walls without any statistical differences. Key words: adhesiveness; endodontic sealers, SEM.
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