Evaluation of Contrast Alternation Efficacy in Diagnosis of Vertical Root Fracture in Conventional Digital Radiography (An Ex-vivo Study)

Jundishapur Scientific Medical Journal

article

Habibi Kia, Ali¹  Dabaghi, Arash¹  Javaheri, Mohammadamin²  Sabaghian, Mehdi³ 

[1] Department of Oral and Maxillofacial Radiology, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences;Department of General Dentistry, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences;Department of Oral and Maxillofacial Pathology, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences

关键词: Vertical root fracture;    Digital radiography;    Contrast Alternation;   

DOI  :  10.32598/JSMJ.20.2312

学科分类：基础医学

来源: Ahvaz Jundishapur University of Medical Sciences

【 摘 要 】

Background and Objectives Most digital imaging systems today offer a variety of image processing techniques.Due to the importance of the accuracy of this imaging and its widespread use in this study weinvestigate the effect of contrast change in the diagnosis of vertical root fracture in conventional digitalradiography.Subjects and Methods In this in vitro study 24 human single-rooted teeth induced vertical root fracturewith underwent variable refrigerant flow (Vrf). Digital images were prepared before and after inductionvrf. Images with three low, medium and high contrasts were examined by two radiologists.Data weretested using kappa and MacNemar tests in SPSS software. Overall accuracy was calculated using Roccurve analyzes.Results The highest sensitivity specificity and overall accuracy are related to images with moderate contrast(95.83%, 100% and 98% in the first observer and 100%, 100% and 100% in the second observer,respectively). In cases of low and high contrast to detect vertical root fracture, there is no statisticallysignificant difference with reality (P<0/001).Conclusion Medium contrast can be used as a processing filter in the detection of vertical root fractures.

【 授权许可】

Unknown