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Type: Artigo de periódico
Title: Radiopacity of root filling materials using digital radiography
Author: Carvalho-Junior, JR
Correr-Sobrinho, L
Correr, AB
Sinhoreti, MAC
Consani, S
Sousa-Neto, MD
Abstract: Aim To evaluate radiopacity of root filling materials using digital radiography. Methodology The sealers tested were AH Plus(TM), Endofill (R), EndoREZ(TM) and Epiphany(TM). Gutta-percha (Dentsply Maillefer) and Resilon(TM) cones were also tested. Acrylic plates, containing six wells, measuring 1 mm in depth and 5 mm in diameter, were prepared for the test, and filled with the materials. The test samples were radiographed together with an aluminium stepwedge calibrated in millimetres, according to ANSI/ADA Specification 57. For the radiographic exposures, digital imaging plates and an X-ray machine at 70 kVp and 8 mA were used. The object-to-focus distance was 30 cm, and the exposure time, 0.2 s. After the laser optic reading process, the software determined the radiopacity of the standardized areas, using grey-scale values, calculating the average radiographic density for each material. Results The decreasing values of radiopacity of the studied materials, expressed in millimetres of aluminium equivalent, were: Resilon(TM) (13.0), AH Plus(TM) (11.2), gutta-percha (9.8), Epiphany(TM) (8.0), Endofill (R) (6.9) and EndoREZ(TM) (6.6). Conclusion All materials had radiopacity values above 3 mm of aluminium recommended by ANSI/ADA Specification 57.
Subject: digital X-ray phosphor plate
image-analysis programme
root canal filling materials
Country: Inglaterra
Editor: Blackwell Publishing
Citation: International Endodontic Journal. Blackwell Publishing, v. 40, n. 7, n. 514, n. 520, 2007.
Rights: fechado
Identifier DOI: 10.1111/j.1365-2591.2007.01246.x
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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