An in vitro comparative study of film thickness of five root canal sealers

ABSTRACT

An adequate film thickness is an important property of an endodontic sealer, when used in combination with gutta-percha, ensuring an hermetic three- dimensional root canal obturation. Film thickness also affects the sealing ability of scalers. The aim of the present study was to compare the film thickness of the following five root canal scalers RSA, Topseal, 2SeaI, AH26 and Acroseal in Islamic Mad University at 2006. In this experimental study all root canal scalers were mixed following mixing procedures advised by manufacturers. A small amount of sealer was placed between two glass plates and a load of 200 gr was applied vertically on the top glass plates for 10 minutes. After setting, the thickness of scalers was measured with a set of digital calipers accurate to 0.01mm. The procedure was repeated ten times for each sealer[n=10]. The all data were analyzed by One-way ANOVA and Tukey HSD tests. The mean film thickness [mm] were respectively AH26=0.36 +/- 0.020, Acroseal=0.37 +/- 0.019 Topseal= 0.41 +/- 0.014, 2Seal=0.38 +0.014 RSA=0.040 +/- 0.018 AH26, 2SeaI and Acroseal showed We best results, but differences among the three groups of scalers were not statistically different. RSA and Topseal showed the highest film thickness and a statistically significant difference was noted among these scalers and the others, hut difference among RSA and Topseal was not statistically different. All root canal scalers had acceptable film thickness, but AH26 showed the least film thickness