AZNAR, Fábio Duarte da Costa; BUENO, Carlos Eduardo da Silveira; NISHIYAMA, Celso Kenji    MARTIN, Alexandre Sigrist de. Radiopacity of seven endodontic sealers evaluated using digitized radiograph. RGO, Rev. gaúch. odontol. (Online) []. 2010, 58, 2, pp. 181-184. ISSN 1981-8637.

OBJETIVE: Determine the radiopacity of seven root canal sealers, two based on calcium hydroxide - Sealapex Apexit and three resin - Sealer 26, AH Plus and EndoRez and two cements based on zinc oxide and eugenol - Intrafill and Endomethasone through digital radiographic images obtained by the indirect method. METHODS: Five-confected acrylic plates with nine holes each, which were inserted in the cements studied. As control was used gutta-percha and to obtain a parameter of the radiopacity of dentin fragments of the same size of the specimens were used. The plates were radiographed and the film scans with a resolution of 400 dpi in grayscale format, the images were later analyzed using the Image Tool v.3.00 software. This type of analysis determines the levels of gray. RESULTS: With the values of the average pixel radiopacity obtained, the order of the most radiopaque cements to least were: AH Plus, EndoRez, Intrafill, Sealer 26, Endomethasone, Apexit and Sealapex. CONCLUSION: All sealers showed radiopacity greater than that of dentin and only the AH Plus was greater than that of gutta-percha.

: endodontic; radiology; root canal obturation.