Abstract
Objective: Measurement of root canal length is one of the most important stages of endodentic treatment, and any error at this stage can lead to the failure. This study aimed to compare conventional and digital intraoral radiography in measurement of root canal length. Material and Methods: In this study, 35 single-canal maxillary teeth were collected. Access cavities were prepared. An endodontic number 10#K- file was introduced into the canal, until the tip was visible at the apical foramen and the actual canal length (gold standard) was determined. After acquisition conventional radiographs using E-Ektaspeed and F-Insight film (Eastman-Kodak Co. Rochester, NY, USA) and digital radiographs using Photostimulable Phosphor Plates(PSP) (Soredex, Helsinki, Finland) and Charge Coupled Devices (CCD)(RVG, Trophy,NY,USA). they were examined separately with a two-week interval by two oral and maxillofacial radiologists. The data were analyzed with ANOVA and Tukey’s tests using SPSS-19 software (SPSS Inc., Chicago, IL, USA). Result: No statistically significant difference was observed between different radiographies, and different observers (P > 0.05). Nevertheless, in comparison with the gold standard, in all cases, the F-speed conventional radiography and the digital CCD radiography showed the highest and the lowest accuracy, respectively. Also, the PSP and the E-speed conventional radiography were in the second and third order of accuracy, respectively. Conclusion: The use of digital radiography does not improve the accuracy of the root canal length measurement,but the digital technique has advantages,such as the reduced patient exposure ,eliminating the time consuming processing stages, and producing fast images.
Highlights
S uccess in endodontic treatment relates in part to the length of the final filling of the root canal
The Phosphor Plates (PSPs) (Soredex, Helsinki, Finland) and the Charge Coupled Devices (CCD) (RVG, Trophy, NY, USA) sensors were used for digital radiography
To determine the accuracy of the different radiographic methods, the results were compared with the gold standard, and the differences were separately examined by the one-way ANOVA
Summary
S uccess in endodontic treatment relates in part to the length of the final filling of the root canal. If the root canal is not measured properly, it may lead to undesirable consequences, and to endodontic treatment failure [1]. A conventional method of root canal length measurement is a film-based radiograph. A side from the above mentioned advantages, there are some disadvantages of digital radiography; for instance, its resolution is lower compared to conventional radiographs. In view of the advantages and disadvantages of conventional and digital radiography systems, the present work compared E-speed film (Ektaspeed,Eastman-Kodak Co. Rochester, NY, USA) and F-speed film (Insight,Eastman-Kodak Co. Rochester, NY, USA) and PSP sensore (Soredex, Helsinki, Finland) and CCD sensore (RVG, Trophy,NY,USA) in terms of accuracy in the measurement of the root canal length
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