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Benefits of using a photostimulable phosphor plate protective device.
de Moura, Graziela; Vizzotto, Mariana Boessio; Tiecher, Priscila Fernanda da Silveira; Arús, Nádia Assein; Silveira, Heraldo Luis Dias da.
Afiliação
  • de Moura G; Department of Oral Surgery and Orthopedics, Division of Oral Radiology, Dental School, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
  • Vizzotto MB; Department of Oral Surgery and Orthopedics, Division of Oral Radiology, Dental School, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
  • Tiecher PFDS; Department of Oral Surgery and Orthopedics, Division of Oral Radiology, Dental School, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
  • Arús NA; Department of Oral Surgery and Orthopedics, Division of Oral Radiology, Dental School, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
  • Silveira HLDD; Department of Oral Surgery and Orthopedics, Division of Oral Radiology, Dental School, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
Dentomaxillofac Radiol ; 50(6): 20200339, 2021 Sep 01.
Article em En | MEDLINE | ID: mdl-33411592
OBJECTIVES: To develop and test a protective device (PD) to increase the resistance of photostimulable storage phosphor (PSP) plate to compressive load, and assess the resulting image quality. METHODS: Two prototypes, polyvinylchloride sheets of 0.3 mm and 0.7 mm each, were developed for PSP plate size 2. The resistance to compressive load was tested using eight new PSPs divided into four test groups: (1) PSP, (2) PSP and paperboard protector, (3) PSP and 0.3 mm PD, and (4) PSP and 0.7 mm PD. The resulting images were analyzed by three oral radiologists, based on the consensus for image artifacts. Additionally, the objective image quality test was performed with four new PSPs, using an 8-step wedge aluminum scale. The mean gray values and standard deviation were measured in a total of 240 images, and the data were analyzed using analysis of variance with Bonferroni post-hoc test. RESULTS: Artifacts were seen in the PSP control group starting at 40 n, and at 150 n, 175 n and 300 n in 0.3 mm PD, paperboard protector and 0.7 mm PD, respectively. Although there was no statistical difference among groups, there were differences between exposure times (0.06-0.25 s, 0.06-0.40 s, and 0.10-0.40 s). Scanning resolution of 20 lp/mm showed higher mean gray value than 25 and 40 lp/mm (p < 0.05). CONCLUSION: The developed PDs improved the PSP resistance to compressive forces, with low interference on the pixel gray values, regardless of exposure time and spatial resolution. Nevertheless, the 0.7 mm PD could withstand the maximum compressive load.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Artefatos / Radiografia Dentária Digital Limite: Humans Idioma: En Revista: Dentomaxillofac Radiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Artefatos / Radiografia Dentária Digital Limite: Humans Idioma: En Revista: Dentomaxillofac Radiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido