If the normal SNB value is 80 degrees and the measured angle is 75 degrees, what does this indicate about the mandible?

Study for the Cephalometrics OSCE Test. Utilize detailed questions with flashcards and comprehensive explanations. Prepare effectively for your exam!

The measured SNB angle being 75 degrees, which is less than the normal value of 80 degrees, indicates that the mandible is positioned further back in comparison to the maxilla. This suggests that the mandible is more posterior or retrognathic. A retrognathic mandible means that the body of the mandible is positioned behind the correct anatomical position, which can lead to a class II skeletal relationship where the lower jaw appears to be set back relative to the upper jaw. Understanding the implications of the SNB angle is essential in cephalometric analysis, as it directly influences jaw function and overall facial aesthetics.

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