“INFLUENCE OF THE REMNANTS OF SILICONE OIL ON THE PENETRATION OF AH PLUS SEALER INTO THE DENTINAL TUBULES AFTER FINAL IRRIGATION WITH 17% EDTA AND 10% MALEIC ACID: A CONFOCAL LASER SCANNING MICROSCOPY STUDY.”

Abstract

Aim: To evaluate the influence of the remnants of silicone oil on the penetration of AH plus sealer into the dentinal tubules after final irrigation with 17% EDTA and 10% Maleic acid. Material and Methodology: Twenty single canal premolars were instrumented using Pro Taper Universal rotary system. Teeth were divided into two main groups (n=10) with and without Silicone oil. Subsequently, each main group was further subdivided into 2 subgroups according to the final irrigation. Obturation was done using lateral compaction technique using Rhodamine B dye labelled sealer. The penetration depth of the sealer was evaluated by using a confocal laser microscope.

Results: The highest depth of sealer penetration into the dentinal tubules was achieved in specimens when final irrigation was done with 10% maleic acid when silicone oil was not used the lowest depth was obtained in specimens when final irrigation was done with 17% EDTA after placement of silicone oil.

Conclusion: Within the limitations of the study, none of the chelating agents were able to totally remove the silicone oil. 10% maleic acid showed better AH Plus sealer penetration into the dentinal tubules than 17% EDTA either with or without using silicone oil.