In vivo study of pixel grey-measurement in digital subtraction radiography for monitoring caries remineralization

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dc.creatorCarneiro, Lórimer Sandoval
dc.creatorNunes, C. A.
dc.creatorSilva, Maria Alves Garcia Santos
dc.creatorLeles, Cláudio Rodrigues
dc.creatorMendonça, E. F.
dc.date.accessioned2019-01-28T12:57:43Z
dc.date.available2019-01-28T12:57:43Z
dc.date.issued2009
dc.description.abstractObjectives: The aim of this study was to evaluate the performance of a quantitative method, based on pixel grey value measurements, for monitoring caries remineralization. Methods: Proximal radiographs of 11 patients (61 enamel caries lesions) were taken both before and after a 2 month remineralization protocol. Radiographs were digitized and for each area a follow-up image was subtracted from a baseline image. A quantitative analysis was undertaken using ImageTool software (University of Texas Health Science Center, San Antonio, TX). For each caries lesion diagnosed, a mean pixel value was obtained in digital subtraction radiographs (SR) using a scale ranging from 0–255 grey values. To identify caries status after the remineralization protocol, a subjective analysis of SR was undertaken by 6 radiologists who graded the lesions as demineralized (n 5 10), unchanged (n 5 34) or remineralized (n 5 17). Results: There was a statistically significant difference between the mean pixel values for demineralized (112.1¡14.4), unchanged (127.3¡12.3) and remineralized (137.5¡13.8) lesions. Conclusions: It was concluded that the status of proximal caries lesions after remineralization therapy can be assessed by pixel grey measurements in SR and may constitute a suitable complementary method for monitoring the results of remineralization protocol in clinical practice.pt_BR
dc.identifier.citationCARNEIRO, L. S. et al. In vivo study of pixel grey-measurement in digital subtraction radiography for monitoring caries remineralization. Dentomaxillofacial Radiology, London, v. 38, n. 2, p. 73-78, 2009.pt_BR
dc.identifier.doi10.1259/dmfr/15857365
dc.identifier.issn0250-832X
dc.identifier.issne- 1476-542X
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/16880
dc.language.isoengpt_BR
dc.publisher.countryGra-bretanhapt_BR
dc.publisher.departmentFaculdade de Odontologia - FO (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectSubtraction techniquept_BR
dc.subjectTooth remineralizationpt_BR
dc.titleIn vivo study of pixel grey-measurement in digital subtraction radiography for monitoring caries remineralizationpt_BR
dc.typeArtigopt_BR

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