Radiopacity of contemporary luting cements using conventional and digital radiography

An, Seo-Young; An, Chang-Hyeon; Choi, Karp-Sik; Huh, Kyung-Hoe; Yi, Won-Jin; Heo, Min-Suk; Lee, Sam-Sun; Choi, Soon-Chul

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저자정보: An, Seo-Young (Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University) An, Chang-Hyeon (Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University) Choi, Karp-Sik (Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University) Huh, Kyung-Hoe (Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University) Yi, Won-Jin (Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University) Heo, Min-Suk (Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University) Lee, Sam-Sun (Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University) Choi, Soon-Chul (Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University)

저널정보: 대한영상치의학회 Imaging science in dentistry Imaging science in dentistry 제48권 제2호

발행연도: 2018.1

수록면: 97 - 101 (5page)

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Purpose: This study evaluated the radiopacity of contemporary luting cements using conventional and digital radiography. Materials and Methods: Disc specimens (N=24, n=6 per group, ø$7mm{\times}1mm$) were prepared using 4 resin-based luting cements (Duolink, Multilink N, Panavia F 2.0, and U-cem). The specimens were radiographed using films, a complementary metal oxide semiconductor (CMOS) sensor, and a photostimulable phosphor plate (PSP) with a 10-step aluminum step wedge (1 mm incremental steps) and a 1-mm-thick tooth cut. The settings were 70 kVp, 4 mA, and 30 cm, with an exposure time of 0.2 s for the films and 0.1 s for the CMOS sensor and PSP. The films were scanned using a scanner. The radiopacity of the luting cements and tooth was measured using a densitometer for the film and NIH ImageJ software for the images obtained from the CMOS sensor, PSP, and scanned films. The data were analyzed using the Kruskal-Wallis and Mann-Whitney U tests. Results: Multilink (3.44-4.33) showed the highest radiopacity, followed by U-cem (1.81-2.88), Panavia F 2.0 (1.51-2.69), and Duolink (1.48-2.59). The $R^2$ values of the optical density of the aluminum step wedge were 0.9923 for the films, 0.9989 for the PSP, 0.9986 for the scanned films, and 0.9266 for the CMOS sensor in the linear regression models. Conclusion: The radiopacities of the luting materials were greater than those of aluminum or dentin at the same thickness. PSP is recommended as a detector for radiopacity measurements because of its accuracy and convenience.

#Dental Materials #Radiography #Dental Enamel #Dentin

참고문헌 (21)

참고문헌 신청

Tsuge T / 2009 / Radiopacity of conventional, resin-modified glass ionomer, and resin-based luting materials / J Oral Sci 51:223~230

American National Standards Institute/American Dental Association / 2000 / ANSI/ADA: Specification no. 57 endodontic sealing material / ADA

Fraga RC / 2000 / Physical properties of resinous cements: an in vitro study / J Oral Rehabil 27:1064~1067

International Standard Organization / 2009 / ISO 4049:2009. Dentistry - polymer-based restorative materials. 4th ed. / International Organization for Standardization

Attar N / 2003 / Mechanical and physical prop-erties of contemporary dental luting agents / J Prosthet Dent 89:127~134

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안서영

소속기관 Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University

주요연구분야 의약학 > 임상의학 > 치의학

논문수 8 이용수 18

안창현

소속기관 Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University

주요연구분야 의약학 > 임상의학 > 치의학

논문수 21 이용수 40

Choi, Karp-Sik

소속기관 Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University

주요연구분야 의약학 > 임상의학 > 치의학

논문수 1 이용수 0

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