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Korean J Oral Maxillofac Radiol. 2004 Mar;34(1):19-24. Korean. Original Article.
Yoon YN , Lee SR , Lee BD .
Department of Oral and Maxillofacial Radiology, School of Dentistry, Wonkwang University, Korea. eebydo@wonkwang.ac.kr
Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyunghee University, Korea.
Abstract

PURPOSE: To compare the diagnostic accuracy of Kodak Insight film with other intra-oral films in the detection of dental caries. MATERIALS AND METHODS: Periapical radiographs of 99 extracted human teeth with sound proximal surfaces and interproximal artificial cavities were made on Kodak Ultra speed, Ektaspeed, Agfa Ektaspeed and Kodak Insight films and automatically processed. Six dentists examined the presence of dental caries using a five-point confidence rating scale and compared the diagnostic accuracy by ROC (Receiver Operating Characteristic) analysis and ANOVA test. RESULTS: The sensitivity of Kodak Ultra speed, Ektaspeed, Agfa Ektaspeed and Insight film were 0.84, 0.77, 0.75 and 0.79 respectively. The specificity of Kodak Ultra speed, Ektaspeed, Agfa Ektaspeed and Insight film were 0.97, 0.95, 0.96 and 0.94 respectively. The mean ROC areas (Az) of Kodak Ultra speed, Ektaspeed, Agfa Ektaspeed and Insight film were 0.917, 0.910, 0.894, 0.909 respectively. There was no significant differences between Az of Insight film and other films (p = 0.178). CONCLUSION: Theses results suggested that Kodak Insight film have the comparative diagnostic accuracy of dental caries with Ultraspeed and Ektaspeed films.

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