We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Comparison of radiopacity in luting resin cements using conventional and digital radiographic systems.
- Authors
Gomes, Giovana Mongruel; Martins, Gislaine Cristine; Bittencourt, Bruna Fortes; Gomes, Osnara Maria Mongruel; Gomes, João Carlos; Calixto, Abraham Lincoln
- Abstract
Objective: I To evaluate the radiopacity of three different resin composite luting cements using the histogram method (conventional radiography) and pixe counting method (digital radiography). Methods: Fifteen specimens were divided into 3 different resin composite luting cement groups: G-I) Cement-Post (Angelus®, Londrina, Brazil), G-II) RelyX ARC (3MESPE, St. Paul, Minnesota, USA) and G-III) Variolink II (Ivoclar/Vivadent, Schaan, Liechtenstein). After 24 hours, conventio,al x-rays of the specimens were taken with a lead gauge, making a visual evaluation by scores, to classify the specimen's radiopacity accordiçig to the scale shade (control); they were then scanned for the purposes of analyzing the histogram using Adobe Photoshop CS2, version BL0. Using the same specimens, x-rays were taken using a Digital X-RAY Intra-Oral System (Gnatus DSR, Ribeirao Preto, Brazil). In this case, the capture~ of the digital images was performed using Cygnus Imaging® software and the digital radiopacily was measured by counting pixels, Lising the Image Tool® software (UTHSCSA). Results: The non-parametric Kruskal-Wallis test and Dunn's post-test (p<0.05) showed that the means and respective standard deviation percentages of white pixels in the digitaix-rays were: G-I) 48.94 ±3. 16, G-II) 60.22 ±3.86 and G-III) 69.36 ±5.32. As for the conventional x-rays, the means and standard deviations of the histogram analyses that evaluated gray tones were: G-l) 71.98 ±13.02; G-ll) 85.40 ±4.47; G-III) 130.51 ±5.82. Conclusion: In conclusion, regardless of the method used (conventional or digital x-rays), G-III obtained the largest radiopacity value.
- Subjects
LONDRINA (Brazil); BRAZIL; MEDICAL digital radiography; DENTAL cements; X-rays; PIXELS; ADOBE Photoshop (Computer software)
- Publication
RGO: Revista Gaúcha de Odontologia, 2011, Vol 59, Issue 3, p425
- ISSN
0103-6971
- Publication type
Article