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Related Experiment Videos

Bitewing examination with four digital receptors.

G Bahrami1, C Hagstrøm, A Wenzel

  • 1Department of Oral Radiology, Royal Dental College, University of Aarhus, Vennelyst Boulevard, 8000 Aarhus C, Denmark. gbahrami@odont.au.dk

Dento Maxillo Facial Radiology
|January 8, 2004
PubMed
Summary
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Digital dental radiography using charge-coupled device (CCD) sensors resulted in more positioning errors and missed tooth surfaces compared to photostimulable phosphor (PSP) plates. Patients also reported higher discomfort with CCD systems during bitewing examinations.

Area of Science:

  • Dental imaging
  • Radiology
  • Diagnostic technology

Background:

  • Digital radiography offers advantages over film-based imaging.
  • Bitewing examinations are crucial for detecting interproximal caries and bone loss.
  • Evaluating digital receptor performance is essential for optimizing diagnostic accuracy and patient experience.

Purpose of the Study:

  • To compare recording errors and patient discomfort between two types of digital receptors: charge-coupled device (CCD) and photostimulable phosphor (PSP) systems.
  • To assess the impact of receptor type on image quality and diagnostic yield in bitewing radiography.

Main Methods:

  • Seventy-eight patients underwent bitewing examinations using four digital receptors (two CCD, two PSP).
  • Image analysis focused on depiction of tooth surfaces, presence of alveolar bone crest, and cone cuts.

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  • Patient discomfort was measured using a visual analogue scale.

    • Main Results:

    • Charge-coupled device (CCD) receptors showed significantly more errors, including missed anterior tooth surfaces and missing alveolar bone crest, compared to photostimulable phosphor (PSP) plates.
    • Cone cuts were observed in a notable percentage of images, varying by receptor type.
    • Patient-reported discomfort was significantly higher with CCD systems than with PSP systems.

    Conclusions:

    • Photostimulable phosphor (PSP) plates are easier to position correctly than charge-coupled device (CCD) sensors, leading to fewer errors in bitewing radiography.
    • CCD sensors are more prone to positioning inaccuracies, resulting in compromised image quality and potentially affecting diagnostic outcomes.
    • Patient comfort is a significant factor, favoring PSP systems in bitewing examinations.