In patients with a low palatal vault, the vertical angulation can be increased up to 15 degrees to compensate for the lack of parallelism without noticeable distortion.

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Quizplus · Accepted Answer

Increasing the vertical angulation can indeed compensate for the lack of parallelism in patients with a low palatal vault without noticeable distortion. This is because the increase in angulation will result in better penetration of the X-rays through the thicker tissue of the palate, improving the image quality.

In Patients with a Low Palatal Vault, the Vertical Angulation