Document Type : Original Article
Authors
1
Assistant Professor, Department of Orthodontics, Faculty of dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
2
Associated Professor, Department of Oral and Maxillofacial Radiology, Faculty of dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
3
Assistant Professor, Department of Oral and Maxillofacial Radiology, Faculty of dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
4
Student of general dentistry, Faculty of dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Ira
5
Department of Oral and Maxillofacial Surgery, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
6
Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
7
Post Gratituded, Department of Oral and Maxillofacial Radiology, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
10.32592/jsmj.24.1.91
Abstract
Background and Objectives Root resorption of adjacent teeth can occur as a result of impacted teeth. Processing filters are employed to aid in interpreting images for diagnosis or treatment purposes. The aim of this study was to analyze the impact of contrast changes on the detection of external resorption in single-rooted teeth near impacted teeth in CBCT images.
Subjects and Methods In this in-vivo study, 50 healthy single-rooted teeth were collected. The teeth were first prepared to a depth of 0. 5, then 1 mm and finally 1.5 mm in the apical region of the root. CBCT images were obtained before and sample preparations. Images with three contrasts of low, medium and high were assessed by two radiologists. Data were analyzed using Kappa and Mac-Nemar tests in SPSS software. Overall accuracy was calculated using Roc curve analyzes.
Results According to the data collected from both observers, the sensitivity (P=0.886), specificity (P=0.667), and overall accuracy (0.7) were high in all three low, medium, and high contrasts. Although, adjustment of the contrast did not cause to significant difference in the detection of the analysis by the observers (P=0.846).
Conclusion Considering that no significant difference was observed between low, medium and high contrasts, all three types of contrast can be used to detect external resorption of the apical root region due to adjacency to the impacted tooth
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