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Evaluation of 4 Commercial Viewing Devices for Radiographic Perceptibility and Working Length Determination
Trent Lally1, James R Geist2, Qingzhao Yu3
1Department of Endodontics, Louisiana State University Health Science Center, School of Dentistry, New Orleans, Louisiana.
Journal of Endodontics
|April 13, 2015
Summary
Desktop monitors and tablets performed similarly for detecting contrast and measuring working length, outperforming a laptop screen. This finding is crucial for accurate dental imaging interpretation across devices.
Area of Science:
- Radiology
- Dental Imaging
- Medical Device Evaluation
Background:
- Accurate interpretation of dental radiographs is crucial for diagnosis and treatment planning.
- Various display devices are used for viewing dental images, potentially impacting diagnostic quality.
Purpose of the Study:
- To compare the diagnostic performance of desktop monitors, laptop monitors, and tablets for contrast detection and working length measurements in dental imaging.
- To evaluate if differences exist between these display devices.
Main Methods:
- Radiographs of aluminum blocks and extracted teeth were created to simulate varying contrast and working length scenarios.
- Six observers assessed image quality and measurements on a desktop, a laptop, and two tablets.
- Statistical analyses, including ANOVA and kappa tests, were used to compare device performance and reliability.
Main Results:
- Desktop monitors and tablets showed comparable performance in contrast detection, significantly outperforming the laptop monitor.
- No significant differences were found among the four devices for working length measurement accuracy.
- Intraobserver and interobserver reliability were assessed.
Conclusions:
- While all devices were adequate for working length assessment, the laptop monitor exhibited inferior contrast perception.
- Display device choice can influence the ability to detect subtle contrast differences in dental images.
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