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논문 기본 정보

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저자정보
Dantas, Raquel Venancio Fernandes (Graduate Program in Dentistry, Federal University of Pelotas) Sarmento, Hugo Ramalho (Graduate Program in Dentistry, Federal University of Pelotas) Duarte, Rosangela Marques (Department of Operative Dentistry, Federal University of Paraiba) Meireles Monte Raso, Sonia Saeger (Department of Operative Dentistry, Federal University of Paraiba) de Andrade, Ana Karina Maciel (Department of Operative Dentistry, Federal University of Paraiba) Dos Anjos-Pontual, Maria Luiza (Department of Operative Dentistry, Federal University of Paraiba)
저널정보
대한영상치의학회 Imaging science in dentistry Imaging science in dentistry 제43권 제3호
발행연도
2013.1
수록면
145 - 151 (7page)

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Purpose: This study was performed to evaluate and compare the radiopacity of dentin, enamel, and 8 restorative composites on conventional radiograph and digital images with different resolutions. Materials and Methods: Specimens were fabricated from 8 materials and human molars were longitudinally sectioned 1.0 mm thick to include both enamel and dentin. The specimens and tooth sections were imaged by conventional radiograph using #4 sized intraoral film and digital images were taken in high speed and high resolution modes using a phosphor storage plate. Densitometric evaluation of the enamel, dentin, restorative materials, a lead sheet, and an aluminum step wedge was performed on the radiographic images. For the evaluation, the Al equivalent (mm) for each material was calculated. The data were analyzed using one-way ANOVA and Tukey's test (p<0.05), considering the material factor and then the radiographic method factor, individually. Results: The high speed mode allowed the highest radiopacity, while the high resolution mode generated the lowest values. Furthermore, the high resolution mode was the most efficient method for radiographic differentiation between restorative composites and dentin. The conventional radiograph was the most effective in enabling differentiation between enamel and composites. The high speed mode was the least effective in enabling radiographic differentiation between the dental tissues and restorative composites. Conclusion: The high speed mode of digital imaging was not effective for differentiation between enamel and composites. This made it less effective than the high resolution mode and conventional radiographs. All of the composites evaluated showed radiopacity values that fit the ISO 4049 recommendations.
#Composite Resins #Computer-Assisted Radiographic Image Interpretation #Dental Digital Radiography #X-ray Film

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참고문헌 (18)

참고문헌 신청
Rasimick BJ / 2007 / Measuring the radiopacity of luting cements, dowels, and core build-up materials with a digital radiography system using a CCD sensor / J Prosthodont 16:357~364 google schola Attar N / 2003 / Flow, strength, stiffness and radiopacity of flowable resin composites / J Can Dent Assoc 69:516~521 google schola Tsuge T / 2009 / Radiopacity of conventional, resin-modified glass ionomer, and resin-based luting materials / J Oral Sci 51:223~230 google schola Tagger M / 2003 / Radiopacity of endodontic sealers: development of a new method for direct measurement / J Endod 29:751~755 google schola Sabbagh J / 2004 / Radiopacity of resin-based materials measured in film radiographs and storage phosphor plate (Digora) / Oper Dent 29:677~684 google schola

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