Comparison of the Conventional and Digital Radiographic Image in Periodontal Bone Resorption

Eduardo Fialho de Almeida BRAGA, Pedro Gregol SILVA, Paula Tereza VARDASCA de OLIVEIRA, José Peixoto FERRÃO JÚNIOR, Joel MARQUES


Objective: To assess periodontal bone defects, comparing the digital images (using the tools of Digora® fmx 2.5) with the conventional angle of -10, 0 and 10 degrees, through the three evaluators analysis.
Methods: To obtain the images we used a conventional X -ray machine with standardized radiography, using the positioner type Rinn® and resin molding of the occlusal surfaces of teeth to be X-ray in three radiographic. The contrast and density were standardized in the use of digital Digora® with X-ray exposures appropriate to each region. The radiographs were performed with films Kodak Insight brand 2. Digital images were analyzed on the computer monitor through Digora® 2.5 software, using the tool to change the default images, 3D and conventional negative and observed in an appropriate light box.
Results: The results of statistical analysis showed significant difference between the observers in the images obtained, the digital images produced poor quality images without changing tools in comparison to conventional radiography and when the digital image was changed (brightness, contrast, 3D), the quality increased significantly, as compared to that produced by conventional film. As the angle of incidence of the x-rays beam, there were no significant differences between them, the same happened on the radiographic side.
Conclusion: The conventional and digital radiographic methods (when using the tools to change the images), showed no statistical differences in the effectiveness of the quantification of periodontal bone defects.


Radiografia; Diagnóstico por imagem; Periodontia.


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