Lateral skull view of palatal tori is used to know
**Core Concept**
The lateral skull view, also known as the Waters' view, is a radiographic projection used to visualize the posterior teeth, palate, and maxillary sinuses. Palatal tori, also known as torus palatinus, are bony growths on the palate that can be congenital or acquired.
**Why the Correct Answer is Right**
The lateral skull view is particularly useful for visualizing palatal tori because it provides a clear image of the palatal surface. This is due to the fact that the X-ray beam is angled to pass through the posterior teeth and maxillary sinuses, which allows for a detailed view of the palate. The presence of palatal tori can be identified on this view by the characteristic bony protuberances on the palatal surface.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because the lateral skull view is not primarily used to visualize the posterior teeth, although it can provide some information about the posterior teeth.
* **Option B:** This option is incorrect because the Waters' view is not typically used to assess the maxillary sinuses, although it can provide some information about the sinuses.
* **Option C:** This option is incorrect because while the lateral skull view can provide some information about the palate, it is not the best view for assessing the soft tissues of the palate.
**Clinical Pearl / High-Yield Fact**
The presence of palatal tori can be a normal variant, but it can also be associated with other systemic conditions such as iron deficiency anemia, hypothyroidism, and certain genetic disorders.
**Correct Answer: D. Lateral skull view is used to know the presence of palatal tori.**