Resumo

FARAONI, Gislaine; FINGER, Meiryelen Silva; MASSON, Michel do Carmo  e  VICTORINO, Fausto Rodrigo. Comparative assessment of flow and setting time of the MTA Fillapex™ sealer. RFO UPF [online]. 2013, vol.18, n.2, pp. 180-184. ISSN 1413-4012.

In endodontics the knowledge of physical properties of endodontic cements is required to perform an adequate clinical procedure. Objective: in the present study, MTA Fillapex™ was compared to Sealer 26™, AH Plus™ and Sealapex™ regarding flow and setting time. Materials and method: for the flow test in triplicate, each cement was manipulated and placed on a glass plate, then another glass plate was placed with an additional weight of 120 g, for 10 minutes. With the aid of a digital caliper the largest and smallest cement diameters were measured, and an arithmetic mean was obtained. To establish the setting time in triplicate, each cement was placed on PVC rings. After 30 minutes the measurements were started with a 100 g and 456.3 g Gillmore-type needle equivalent to the initial and final time respectively. The results were obtained after the brands of the needles were no longer visible in the cements. Results: the MTA Fillapex™ presented a higher flow rate than other cements, and required more time to set up than AH Plus™, but was faster than Sealer 26™. The Sealapex™ cement did not take the initial set, and the MTA Fillapex™ did not take the final set, which was also evidenced for the Sealapex™ cement. Conclusions: the MTA Fillapex™ cement is in compliance with the ADA in regards to flow, and the initial setting time was longer than that described by the manufacturer.

Palavras-chave : Root canal filling.; Physical properties.; Endodontics..