A new digital tool for radiographic bone level measurements in longitudinal studies

BMC Oral Health
Hans R PreusLeiv Sandvik

Abstract

The reproducibility of measurements on radiographs is influenced by the techniques by which the images as well as the measurements are obtained. Thus, bias resulting from errors in the image and/or image examinations at two points in time may result in wrongful registrations of true biological or pathological changes. The aim of the present study was to propose and evaluate an indirect radiological examination technique, by which bias, when measuring radiographic bone level, could be substantially reduced as compared to the technique using direct mm measurements. A plugin to ImageJ was designed to reduce bias when measuring bone loss on radiographic images. In human dry mandibles, radiographic images of 20 teeth were obtained parallel with the tooth axis (alpha = 0) and at an angle of 30° deviation. The direct technique of measuring radiographic bone level (RBL) and the indirect, length-adjusted RBL were registered by four researchers in a double blinded fashion. When mean RBL measured at 0° angle was 7.0 mm, the corresponding mean RBL measured at 30° angle was 7.8 mm, signifying an 11.4% increase (p = 0.032), whereas the mean length-adjusted RBL increased by 0.6% (p = 0.9). This study showed that the use of the original, direc...Continue Reading

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Citations

Jan 10, 2019·International Journal of Environmental Research and Public Health·Vasilena IvanovaEitan Mijiritsky
Aug 10, 2019·International Journal of Implant Dentistry·Nadine Cordero RubinsteinSerge Dibart

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Methods Mentioned

BETA
X-ray
X ray

Software Mentioned

ImageJ
Digora
SPSS
ImagJ

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