Radiology In endodontics, a long cone open-ended cylinder is used as an adjunct with paralleling technique in order to: A Increase the apparent size of the focal spot B To prevent distortion of image C To prevent elongation of the image D To prevent shortening of image 💡 Explanation In endodontics, a long cone open-ended cylinder is used as an adjunct with paralleling technique in order to: ✓ Correct Answer: B. To prevent distortion of image