Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/108563
Type: Artigo de periódico
Title: Diagnosis Of Secondary Caries In Esthetic Restorations: Influence Of The Incidence Vertical Angle Of The X-ray Beam
Author: Moreira P.L.
Messora M.R.
Pereira S.M.
de Almeida S.M.
da Cruz A.D.
Abstract: The aim of this study was to evaluate the accuracy on the diagnosis of secondary caries-like lesions simulated on esthetic restorations of different materials, changing the incidence vertical angle (IVA) of the x-ray beam. Twenty human teeth received MOD inlay preparations. In the experimental group (n=10), a round cavity was made in the floor of the proximal box to simulate the caries-like lesion. All teeth were restored with 3 composite resins (Charisma, Filtek-Z250 and TPH-Spectrum) at 3 moments. Two radiographic images were acquired with 0° and 10° IVA. Ten observers evaluated the images using a 5-point confidence scale. Intra- and interobserver reliability was analyzed with the Interclass Correlation Coefficient and the diagnostic accuracy was evaluated using the area under the ROC curve (Az), Friedman test and Wilcoxon test (α=0.05). Higher accuracy values were obtained with 10° IVA (Az=0.66, Filtek- Z250>Az=0.56, TPH-Spectrum) compared to 0° (Az=0.55, Charisma>Az=0.37, TPH-Spectrum), though without statistically significant difference (p>0.05). The detection of secondary caries-like lesions simulated on esthetic restorations of different materials suffered no negative influence by changing the IVA of the x-ray beam.
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Rights: aberto
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-79956299096&partnerID=40&md5=6e6ba8013c5e1bd65592321ed8945051
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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