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How many times can we use a phosphor plate? A preliminary study
1Department of Oral Diagnosis and Radiology, Ege University, Bornova 35100, Izmir, Turkey. selin.gogus@ege.edu.tr
Dento Maxillo Facial Radiology
|December 31, 2008
Summary
Photostimulable phosphor plates (PSPs) in dental radiography show slight initial image quality decline but remain usable up to 200 exposures. This study determined the service life of PSPs in a clinical setting.
Area of Science:
- Dental Imaging Technology
- Radiology
- Medical Device Longevity
Background:
- Digital radiography, utilizing charge-coupled devices (CCDs) and photostimulable phosphor plates (PSPs), is integral to modern dental practice.
- The long-term clinical performance and durability of PSPs, a key component in digital dental imaging, require thorough investigation.
Purpose of the Study:
- To evaluate the service life of photostimulable phosphor plates (PSPs) under clinical conditions.
- To determine the impact of repeated exposures on the image quality and longevity of PSPs used in dental radiography.
Main Methods:
- Five new PSPs were imaged using a standard X-ray device, establishing baseline digital images.
- PSPs underwent sequential digital imaging after 20 to 200 exposures.
- Image quality was assessed by analyzing mean grey values (MGVs) of subtracted images using specialized software, with data grouped and statistically analyzed.
Main Results:
- While a minor deterioration in image quality was observed after the initial exposure, it was not statistically significant across exposure groups (P = 0.11).
- However, significant differences in MGVs were noted compared to the baseline image after each exposure setting (P < 0.05).
Conclusions:
- PSPs demonstrate a usable service life of up to 200 exposures in a clinical dental setting, despite an initial slight decline in image quality.
- Further research is recommended to solidify these findings and provide more definitive conclusions on PSP longevity.
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