Although X-rays can only provide a small part of the information to assist diagnosis and treatment in root canal therapy, high-quality X-rays are very valuable. In root canal therapy, not only preoperative positive radiographs, but also offset Angle images are necessary, especially in complicated cases such as curvature, calcification, broken needles, small root canal, C-shaped root canal, and retreatment. A large number of root canal failure cases are due to inaccurate, incomplete, and unclear radiographs.
The current root canal treatment requires visualization throughout the whole process. The pulp cavity can be visualized by the naked eye with the upper rubber barrier because of the straight entrance created by the pulp opening. The root canal conditions in the preparation of the root canal can also be visualized with the help of a magnifying glass or microscope. The visualization of the filling condition after the root canal filling, the analysis of the causes of the failure of the treatment and the analysis of the complexity of the retreatment requires high-quality X-rays. In order to understand the small and comprehensive condition of the root canal, it is necessary to take the offset X-ray, and the digital X-ray can better meet our requirements. The developed film can only see the general situation, not the details.
After experiencing a large number of cases of root canal treatment, you will feel more and more about the complex and varied root canal system, especially when you think that the treatment is OK, but there are clinical symptoms or lesions that show no signs of improvement. In the process of retreatment, certain deficiencies are indeed found, such as missing root canal, broken needle, inaccurate length, perforation, imprecise filling, etc. Adherence to preoperative, intraoperative, and postoperative orthostatic and offset imaging can increase the success rate and reduce the occurrence of problems.
