1. A comparison of Kodak Ektaspeed and Ultraspeed films for the detection of periodontal bone lesions
- Author
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Olving A, Grondahl Hg, and Grondahl K
- Subjects
Orthodontics ,business.industry ,Alveolar process ,Radiography ,X-Ray Film ,Significant difference ,Dentistry ,Diagnostic accuracy ,General Medicine ,Radiation Dosage ,medicine.anatomical_structure ,Otorhinolaryngology ,Bone lesion ,medicine ,Alveolar Process ,Humans ,Radiology, Nuclear Medicine and imaging ,Diagnostic Errors ,business ,General Dentistry ,Periodontal Diseases - Abstract
Kodak Ektaspeed films were compared with Kodak Ultraspeed films for the detection of small periodontal bone lesions prepared in dry human mandibular jaws. Sixteen dentists served as observers who compared radiographs before and after lesions were made and registered the presence or absence of lesions using a diagnostic confidence scale. ROC-curves were drawn for each observer and type of film and the area under the curves was used as a measure of diagnostic accuracy. No statistically significant difference could be demonstrated between the two types of film concerning the ability of the observers to discriminate between periodontal bone areas with and without lesions.
- Published
- 1983