What is a common issue in radiographs caused by patient movement?

When it comes to radiographs, patient movement is a significant factor that can negatively affect the quality of the images produced. Movement during the exposure can cause the resulting images to appear blurred. This blurriness occurs because the X-ray machine captures an image while the patient shifts position, leading to a lack of clarity. Sharpness in dental radiographs is critical, as it allows for accurate assessment of dental structures and potential abnormalities. In contrast, other issues like underexposure and overlapping are related to different technical errors rather than patient movement. Additionally, cone cutting is a distinct problem that arises from improper positioning of the X-ray beam, which does not directly relate to movement. Therefore, the characteristic of blurred images is directly correlated with patient motion during the radiographic procedure.