Dental Assistant Practice Exam

What is the role of the patient’s occlusal plane in the bisecting angle technique?

1. It serves as a reference for positioning the film

2. It determines the length of exposure time

3. It affects the size of the film

4. It indicates the angle of the X-ray beam

The correct answer is: It serves as a reference for positioning the film

The role of the patient’s occlusal plane in the bisecting angle technique is primarily to serve as a reference for positioning the film or sensor during radiographic procedures. This technique requires that the film be placed at a specific angle to the long axis of the tooth being imaged. By aligning the film with the occlusal plane, the dental professional can ensure that the X-ray beam is directed properly, thereby improving the accuracy of the resulting image. Using the occlusal plane as a positioning reference allows for better visualization of anatomical structures and can help reduce distortion in the image. Proper alignment is critical in achieving a clear and diagnostic radiograph, demonstrating the significance of the occlusal plane in the bisecting angle technique. This understanding aids in obtaining high-quality dental radiographs that are essential for effective diagnosis and treatment planning.