Title: A Comparison of Accuracy of Determining the Root Canal Working Length by Different Magnifications of Digital Radiography
Abstract:Introduction: Successful root canal therapy is related to cleaning, shaping and obturation of the root canal system
with a proper limited working length. Therefore, these are achieved by knowledge of...Introduction: Successful root canal therapy is related to cleaning, shaping and obturation of the root canal system
with a proper limited working length. Therefore, these are achieved by knowledge of root canal anatomy and
radiograph images. Current radiographic techniques are elementory methods. With the advancement of computer
technology, and due to limitations that exist, in this recent decade significant attention has been given to digital
radiography. Software programs for digital radiographic systems, such as magnification of different images is a tool
assistant for digital systems in increasing precision. The purpose of this study was to compare different
magnifications of digital radiography to determining canal length.
Materials & Methods: In this experimental in vitro study, 30 human anterior teeth were selected and cleaned in
detergent. The actual working length was measured with a N.15 file. Then the teeth were casted and the files were
inserted in canals in 3 different positions, proper, under and over. Ninety images of the teeth in three magnifications
were made and working length was evaluated by three endodontists randomly. Then the Friedman test was used for
statistical analysis.
Results: After statistical analysis, the results showed that there was no significant differences between the groups.
But there is significant difference in 2X magnificantion of under working length to real working length.
Conclusion: In conclusion, it can be stated that magnification of digital radiography can not be helpful in
determination of working length especially in under postion.
Key words: Working length, digital radiograpy, magnification.Read More
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot