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Pre-clinical performance comparing intraoral film and CCD-based systems
Tracey Malarkey Sommers1, Sally M Mauriello, John B Ludlow
1Lorain County Community College, Elyria, Ohio, USA.
Journal of Dental Hygiene : JDH
|April 9, 2002
Summary
Dental students experienced more technique errors and required more retakes with digital radiography (charge-coupled device - CCD) systems compared to traditional film. However, CCD systems may aid in teaching radiographic technique theory.
Area of Science:
- Dental Radiology
- Medical Imaging Technology
Background:
- Traditional film-based radiography has been the standard for dental imaging.
- Digital radiography systems, such as charge-coupled device (CCD) sensors, offer potential advantages in image acquisition and processing.
- Comparing the performance and learning experience of students using both systems is crucial for educational curriculum development.
Purpose of the Study:
- To compare dental hygiene student radiographic performance between film and CCD systems.
- To evaluate differences in technique errors, retake frequency, and student learning experiences.
Main Methods:
- Twenty-eight subjects performed full radiographic series on a manikin using both film and CCD systems.
- Images were evaluated for quality, and quantitative and qualitative data were collected.
- Statistical analysis included ANOVA and Wilcoxon tests, with focus groups for qualitative insights.
Main Results:
- More technique errors occurred with CCD systems (p < 0.0001), primarily vertical angulation errors, compared to film's horizontal angulation errors.
- Students required significantly more retakes with CCD (10 per series) versus film (3 per series).
- Difficulty with intraoral sensor placement was reported by 74% of subjects using CCD.
Conclusions:
- CCD systems may be effective for teaching radiographic technique in pre-clinical settings.
- Radiographic error types are significantly influenced by the image receptor system used.
- Students perceived CCD systems as beneficial for theory but preferred film for psychomotor skill development.