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Radiographic contrast. A comparative study of three dental X-ray films
1Department of Radiology, Ribeirao Preto Dental School, University of Sao Paulo, Brazil.
Dento Maxillo Facial Radiology
|July 1, 1997
Summary
Dental X-ray film contrast was evaluated. Ultra-speed and Ektaspeed Plus films demonstrated superior radiographic contrast compared to Ektaspeed film, with no significant difference between the former two.
Area of Science:
- Dental radiology
- Radiographic imaging technology
Background:
- Dental radiography relies on X-ray films to visualize oral structures.
- Optimizing radiographic contrast is crucial for accurate diagnosis.
- Eastman-Kodak offers various dental X-ray films, including Ultra-speed, Ektaspeed, and Ektaspeed Plus.
Purpose of the Study:
- To compare the radiographic contrast performance of three specific dental X-ray films: Ultra-speed, Ektaspeed, and Ektaspeed Plus.
- To determine which film provides superior contrast for dental imaging.
Main Methods:
- Objective assessment using an aluminum stepwedge to measure optical densities.
- Statistical analysis of objective data using Kruskal-Wallis and Mann-Whitney U tests.
- Subjective evaluation by 12 dentists assessing contrast in human mandibular segments.
Main Results:
- Objective evaluation showed no significant contrast difference between Ultra-speed and Ektaspeed Plus films.
- Both Ultra-speed and Ektaspeed Plus films exhibited significantly better contrast than Ektaspeed film.
- Subjective assessment indicated a majority preference for Ultra-speed or Ektaspeed Plus films due to their contrast.
Conclusions:
- Radiographic contrast of Ektaspeed Plus film is not significantly different from Ultra-speed film.
- Both Ultra-speed and Ektaspeed Plus films offer superior contrast compared to Ektaspeed film in dental radiography.