Author/Authors :
Faramarzi ، Farhad نويسنده Department of Endodontics, Dental School, Hamedan University of Medical Sciences, Hamedan, Iran , , Vossoghi، Mitra نويسنده Department of Endodontics, Hamadan University of Medical Sciences, Hamadan, IR Iran , , Shams، Bahareh نويسنده Periodontics Department, Faculty of Dentistry, Shahid
Beheshti University of Medical Sciences, Tehran, IR
Iran , , Vossoghi، Maryam نويسنده Prosthodontics Department, Kerman University of Medical Sciences, Kerman, IR Iran ,
Abstract :
Sealing ability is an essential factor for retrograde filling
material in successful endodontic apical surgery. The aim of this in
vitro study was to evaluate dye microleakage of Mineral Trioxide
Aggregate (MTA) and Calcium Enriched Mixture (CEM cement) as root end
filling material. The aim of this in vitro study was to compare sealing
ability of these two root end filling materials using the dye
penetration method. Eighty-six single rooted teeth were randomly divided
into two study (n = 40) groups and two positive and negative control (n
= 3) groups. After decoronation closely to the cementum enamel junction,
the root canals were shaped by the crown down technique and obturated by
gutta-percha and AH26 sealer with the lateral condensation method.
Furthermore, 3 mm of root ends were resected and 3 mm root-end cavities
were prepared by ultrasonic microsurgical tip. Root-end cavities were
filled with each of the mentioned materials. Methylene blue dye was used
for determination of dye leakage. Chi-2 analysis and t-test were used to
compare groups. The mean apical penetration of dye in the MTA group was
0.94 mm while in the CEM cement group this was 1.17 mm. Eighty percent
of the MTA group and 75% of the CEM cement group didn’t have any dye
leakage. The P level was greater than 0.05 (0.592). There was no
significant statistical difference between MTA and CEM cement in sealing
ability (P > 0.05).
