bobsmith03
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There is a relationship with ramus and mandible body. The shorter the ramus, the longer the mandible. The longer the ramus, the shorter the mandible.
There is another relationship, it is downward growth and angularity of the ramus.
Here jordan barret has a short ramus, long mandible but high gonial angle, why? because gonial angle doesn't mean anything, its all about this:
Instead of gonial angle we should look at this angle, which we will call mandible to floor angle i.e. how parallel is your mandible to the floor
The interesting thing we see is that the more straight the ramus is, the more you are downground I think. Below is an example of my jaw:
gonial angle above is not >130, its actually 119deg
The mandible to floor angle is 27deg which indicates I am downward grown and lack forward growth of mandible. My ramus is 3cm and my mandible (gonion to mid chin) is 12.7cm
Back to Barret. his mandible to floor angle is 15 deg:
People with forward grown mandible all of have a low mandible-to-floor angle, and a diagonal ramus. To test this yourself jut your head out and look up, if your ramus is straight af then you are probably downward grown, if its at an angle then you've got forward growth.
There is another relationship, it is downward growth and angularity of the ramus.
Here jordan barret has a short ramus, long mandible but high gonial angle, why? because gonial angle doesn't mean anything, its all about this:
Instead of gonial angle we should look at this angle, which we will call mandible to floor angle i.e. how parallel is your mandible to the floor
The interesting thing we see is that the more straight the ramus is, the more you are downground I think. Below is an example of my jaw:
gonial angle above is not >130, its actually 119deg
The mandible to floor angle is 27deg which indicates I am downward grown and lack forward growth of mandible. My ramus is 3cm and my mandible (gonion to mid chin) is 12.7cm
Back to Barret. his mandible to floor angle is 15 deg:
People with forward grown mandible all of have a low mandible-to-floor angle, and a diagonal ramus. To test this yourself jut your head out and look up, if your ramus is straight af then you are probably downward grown, if its at an angle then you've got forward growth.