What is the SNA angle value given for maxillary position relative to the cranial base?

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Multiple Choice

What is the SNA angle value given for maxillary position relative to the cranial base?

The SNA angle measures how far forward the maxilla sits relative to the cranial base. It is the angle formed at Nasion between the Sella–Nasion line and the Nasion–Point A line. A normal value is about 82 degrees, which corresponds to a dentofacial relationship considered in balance with the cranial base. Therefore, the value given for the maxillary position relative to the cranial base is 82 degrees. If the angle is smaller, the maxilla is retrusive; if larger, the maxilla is more prognathic.

The SNA angle measures how far forward the maxilla sits relative to the cranial base. It is the angle formed at Nasion between the Sella–Nasion line and the Nasion–Point A line. A normal value is about 82 degrees, which corresponds to a dentofacial relationship considered in balance with the cranial base. Therefore, the value given for the maxillary position relative to the cranial base is 82 degrees. If the angle is smaller, the maxilla is retrusive; if larger, the maxilla is more prognathic.

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