Effect of image compression on the radiographic diagnosis of external root resorptions

Authors

  • Vania Regina Camargo FONTANELLA ULBRA, UFRGS
  • Vinicius RAAB
  • Elaine BALDISSERA UFPEL
  • Célia Regina Winck MAHL ULBRA
  • Carlos Eduardo Winck MAHL ULBRA
  • André WILTGEN ULBRA

DOI:

https://doi.org/10.22456/2177-0018.7396

Keywords:

Root resorption, Diagnostic imaging, Dental digital radiography

Abstract

To investigate the effect of JPEG image compression on the diagnostic accuracy of external root resorptions, 33 central upper incisors were mounted in a maxilla simulator artifact and radiographed. Sequential external root resorptions of different sizes were simulated on the proximal surfaces of each tooth with 1⁄4, 1⁄2, 1, 2 and 3 round burs. The teeth were radiographed before and after each cavity was drilled. Each radiographic image was digitized, digitally copied and stored as JPEG image files at 12, 10, 8 and 6 compression levels. The images were randomly presented to six radiologists that ranked resorptions on a 5-point confidence scale. The JPEG 10 compression level reduced file size in about

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Author Biographies

Vania Regina Camargo FONTANELLA, ULBRA, UFRGS

Professor Adjunto da Universidade Luterana do Brasil/Canoas e Universidade Federal do Rio Grande do Sul

Vinicius RAAB

Especialista em Radiologia Odontológica pela SOBRACURSOS

Elaine BALDISSERA, UFPEL

Professor Adjunto da Universidade Federal de Pelotas

Célia Regina Winck MAHL, ULBRA

Professora da Universidade Luterana do Brasil/Canoas

Carlos Eduardo Winck MAHL, ULBRA

Professor da Universidade Luterana do Brasil/Canoas

André WILTGEN, ULBRA

Professor da Universidade Luterana do Brasil/Torres

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Published

2007-03-18

How to Cite

FONTANELLA, V. R. C., RAAB, V., BALDISSERA, E., MAHL, C. R. W., MAHL, C. E. W., & WILTGEN, A. (2007). Effect of image compression on the radiographic diagnosis of external root resorptions. Revista Da Faculdade De Odontologia De Porto Alegre, 48(1/3). https://doi.org/10.22456/2177-0018.7396

Issue

v. 48, n. 1/3 (2007)

Section

Original articles

License

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